BACKGROUND Postpartum depression(PPD)represents a significant public health concern,adversely affecting both new mothers and their infants.Despite routine early screening,PPD can persist beyond the initial postpartum ...BACKGROUND Postpartum depression(PPD)represents a significant public health concern,adversely affecting both new mothers and their infants.Despite routine early screening,PPD can persist beyond the initial postpartum months,with notably high incidence rates even one year after childbirth.Persistent PPD has been associated with poor developmental outcomes in infants,highlighting the need for continued monitoring and support during this critical period.Understanding the broader impacts of persistent PPD is essential for developing effective interventions to improve maternal and infant well-being.AIM To explore the impact of persistent PPD on infant developmental behavior and maternal self-efficacy.METHODS We recruited 60 postpartum women who experienced persistent depression after childbirth in our hospital from January 2020 to December 2024 as the research subjects.The study collected basic characteristics of both infants and mothers,analyzed the self-efficacy of the mothers and the developmental behaviors of the infants,and conducted a correlation analysis to examine the relationship between postpartum persistent depression in mothers and the developmental behaviors and self-efficacy of infants.The Bootstrap method was used to verify the significance of the mediating effect.RESULTS The basic characteristics of infants and mothers show that 53.33%are male,58.33%are born via vaginal delivery,88.33%have a normal body mass index,51.67%are aged between 25 and 29 years,70%are non-agricultural workers,51.67%have a per capita household income over 4000 yuan,96.67%are full-term births,and 58.33%of the fathers are aged between 26 and 32 years.In terms of infant development behavior,the gross motor skills score is relatively low(38.44±12.15).Regarding maternal self-efficacy,the skill score(45.68±5.49)and mental activity score(46.37±3.72)are both at a low level.Correlation analysis reveals that postpartum persistent depression is significantly negatively correlated with maternal self-efficacy and infant development behavior(β=-0.439,-0.657,P<0.001),while self-efficacy is positively correlated with infant development behavior(β=0.728,P<0.001).The path coefficient and Bootstrap method test indicate that self-efficacy acts as a mediator between postpartum persistent depression and infant development behavior,accounting for 54.80%of the effect(P<0.05),while the direct effect of postpartum persistent depression on infant development behavior is 45.20%(P<0.05).CONCLUSION Persistent PPD significantly negatively impacts infant developmental outcomes,with maternal self-efficacy serving as a partial mediator.These findings suggest that interventions targeting both depressive symptoms and selfenhancement may effectively promote infant health development.展开更多
Plant height （PH） is one of the most important agronomic traits of rice, as it directly affects the lodging resistance and the high yield potential. Meanwhile, PH is often constrained by water supply over the entire...Plant height （PH） is one of the most important agronomic traits of rice, as it directly affects the lodging resistance and the high yield potential. Meanwhile, PH is often constrained by water supply over the entire growth period. In this study, a recombinant inbred line （RIL） derived from Xiaobaijingzi and Kongyu 131 strains grown under drought stress and with normal irrigation over 2 yr （2013 and 2014）, respectively （regarded as four environments）, was used to dissect the genetic basis of PH by developmental dynamics QTL analysis combined with QTL^environment interactions. QTLs with net effects excluding the accumulated effects were detected to explore the relationship between genexgene interactions and genexenvironment interactions in specific growth period. A total of 26 additive QTLs （A-QTLs） and 37 epistatic QTLs （E-QTLs） associated with PH were detected by unconditional and conditional mapping over seven growth periods, qPH-2-3, qPH-4-3, qPH-6-1, qPH-7-1, and qPH-12-5 could be detected by both unconditional and conditional analyses, qPH-4-3 and qPH-7-5 were detected in four stages （periods） to be sequentially expressed QTLs controlling PH continuous variation. QTLs with additive effects （A-QTLs） were mostly expressed in the period $3iS2 （the time interval from stages 2 to 3）, and QTLxenvironment interactions performed actively in the first three stages （periods） which could be an important developmental period for rice to undergo external morphogenesis during drought stress. Several QTLs showed high adaptability for drought stress and many QTLs were closely related to the environments such as qPH-3-5, qPH-2-2 and qPH-6-1. 72.5% of the QTLs with a and aa effects detected by conditional analysis were under drought stress, and the PVE of QTLs detected by conditional analysis under drought stress were also much higher than that under normal irrigation. We infer that environments would influence the detection results and sequential expression of genes was highly influenced by environments as well. Many QTLs （qPH-1-2, qPH-3-5, qPH-4-1, qPH-2-3） coincident with previously identified drought resistance genes. The result of this study is helpful to elucidating the genetic mechanism and regulatory network underlying the development of PH in rice and providing references to marker assisted selection.展开更多
Phase separation was studied by the optical microscopy in blends of nylon 6 (PA6) with sodium salt of ethylene/methacrylic acid copolymer (PEMA).The image collecting technology was used to keep track of the developme...Phase separation was studied by the optical microscopy in blends of nylon 6 (PA6) with sodium salt of ethylene/methacrylic acid copolymer (PEMA).The image collecting technology was used to keep track of the development of blends at a certain temperature.The fractal dimension of phase separation was calculated by the image solving technology according to the fractal theory and the self similarity behavior of the process was proved.The relationship of the fractal behavior with composition and experimental temperature was discussed.The fractal behavior of the crystallization development of the crystal phase of PA6 in blends was also discussed and the fractal behavior calculated.展开更多
Objective This study aimed to explore the clinical value of Children Neuropsychological and Behavioral Scale-Revision 2016(CNBS-R2016)for Autism Spectrum Disorder(ASD)screening in the presence of developmental surveil...Objective This study aimed to explore the clinical value of Children Neuropsychological and Behavioral Scale-Revision 2016(CNBS-R2016)for Autism Spectrum Disorder(ASD)screening in the presence of developmental surveillance.Methods All participants were evaluated by the CNBS-R2016 and Gesell Developmental Schedules(GDS).Spearman’s correlation coefficients and Kappa values were obtained.Taking GDS as a reference assessment,the performance of the CNBS-R2016 for detecting the developmental delays of children with ASD was analyzed with receiver operating characteristic(ROC)curves.The efficacy of the CNBS-R2016 to screen for ASD was explored by comparing Communication Warning Behavior with Autism Diagnostic Observation Schedule,Second Edition(ADOS-2).Results In total,150 children aged 12–42 months with ASD were enrolled.The developmental quotients of the CNBS-R2016 were correlated with those of the GDS(r=0.62–0.94).The CNBS-R2016 and GDS had good diagnostic agreement for developmental delays(Kappa=0.73–0.89),except for Fine Motor.There was a significant difference between the proportions of Fine Motor,delays detected by the CNBS-R2016 and GDS(86.0%vs.77.3%).With GDS as a standard,the areas under the ROC curves of the CNBS-R2016 were above 0.95 for all the domains except Fine Motor,which was 0.70.In addition,the positive rate of ASD was 100.0%and 93.5%when the cut-off points of 7 and 12 in the Communication Warning Behavior subscale were used,respectively.Conclusion The CNBS-R2016 performed well in developmental assessment and screening for children with ASD,especially by Communication Warning Behaviors subscale.Therefore,the CNBS-R2016 is worthy of clinical application in children with ASD in China.展开更多
Chemical communication plays an important role in survival and reproductive success in mammalian species. In the present study, we examined the ontogenetic pattern of behavioral responses of male giant pandas （Ailuro...Chemical communication plays an important role in survival and reproductive success in mammalian species. In the present study, we examined the ontogenetic pattern of behavioral responses of male giant pandas （Ailuropoda melanoleuca ） to urine odors of conspecific individuals. Our data showed that exposure to the urine of adult females induced a significant increase in sniffing and environmental sniffing/licking behaviors, but a decrease in biting behavior, in males. Males of different ages displayed specific behaviors to female urine odors. Adult males spent more time licking than juvenile and sub-adult males. Further, sub-adult and adult males displayed high levels of environmental sniffing/licking, which was absent in the juvenile males. Juvenile males displayed scent rubbing behavior significantly more frequently than sub-adult and adult males, and also spent more time showing biting behavior than sub-adult males. Finally, juvenile and sub-aduh males showed no difference in response to female and male urine odors. Together, these data suggest that chemosensory cues from conspecific urines induce age-specific responses in male giant pandas.展开更多
Seed size is one of the important factors of soybean[Glycine max(L.)Merrill]yield.There have been lots of reports about genetic effects and physiology-ecological researches on seed size,but the genetic behaviors of ge...Seed size is one of the important factors of soybean[Glycine max(L.)Merrill]yield.There have been lots of reports about genetic effects and physiology-ecological researches on seed size,but the genetic behaviors of genes during seeds development were rarely discussed.Analysis of main genetic effects for fresh seed size(FSS)and dry seed size(DSS)of soybean was conducted with diallel cross data by using a seed genetic model.Analyses of unconditional and conditional variances and correlations were used to evaluate the developmental behavior of soybean.The phenotypic means of FSS and DSS in soybean at eight stages among three generations reached the highest value at 9/6 and 9/13,respectively.The means of FSS decreased dramatically after 9/6,but the means of DSS maintained relatively stable tendency at corresponding periods.The unconditional variance analysis showed that FSS and DSS were controlled by embryo,cytoplasmic and maternal effects in the whole growth period.Genetic effects due to cytoplasmic and maternal effects were relatively important for FSS and DSS at most of the growth periods.Conditional variance analysis showed that genes from different genetic system expressed discontinuously in the whole growth period.The net genetic effects due to cytoplasmic and maternal plant on FSS and DSS were larger than those of embryo effects at most of the growth periods.Different genetic system can affect the relationship of various stages to mature solely or simultaneously.Embryo additive effects at 8/16,embryo dominance effects at 8/9 and 8/16,maternal plant dominance effects at 8/2 and 8/16 could ultimately affect the performance of FSS at maturing stage.Embryo additive effects at 8/2 and 9/13,cytoplasm effects at 8/9,maternal plant dominance effects at 8/2 could ultimately affect the performance of DSS.展开更多
A comprehensive overview is presented of the literature dealing with the development of sleep-like motility and neuronal activity patterns in non-vertebrate animals. It has been established that spontaneous, periodica...A comprehensive overview is presented of the literature dealing with the development of sleep-like motility and neuronal activity patterns in non-vertebrate animals. It has been established that spontaneous, periodically modulated, neurogenic bursts of movement appear to be a universal feature of prenatal behavior. New empirical data are presented showing that such ＇seismic sleep＇ or ＇rapid-body-movement＇ bursts in cuttlefish persist for some time after birth. Extensive ontogenetic research in both vertebrates and non-vertebrates is thus essential before current hypotheses about the phylogeny of motorically active sleep-like states can be taken seriously.展开更多
The objective of this original pilot study was to determine if the Drums Alive<span style="white-space:nowrap;"><sup>®</sup></span> Kids Beats intervention could provide stati...The objective of this original pilot study was to determine if the Drums Alive<span style="white-space:nowrap;"><sup>®</sup></span> Kids Beats intervention could provide statistically significant improvements to physical and motor skill performance on participants with Developmental Delays (DD) using the Dusseldorf Motor-Proficiency-Test for children (MOT 4-6) model. The researchers selected the research-based Drums Alive Kids Beat intervention because of its multidisciplinary methodology that in previous studies demonstrated positive effects on physiological, psychological, neurological, educational, rhythmical, and socio-emotional literacy. Facilitators used standardized Drums Alive approved lesson plans and equipment to conduct the intervention through a battery of music, movement and drumming-centered exercises and activities. The 30 participants were German students between 4.9 and 10.2 years of age, without any inclusion or exclusion characteristics, who were divided into three groups consisting of two intervention groups: IG Kindergarten (IG Kinder), IG Elementary<span style="font-family:;" "=""><span style="font-family:Verdana;"> (IG Elem) with varied physical, social, and emotional DD that affected gross and fine motor skills, movement, coordination, and behavioral control;and, a Control Group (CG) that had normal physical and motor skill development (</span><b><span style="font-family:Verdana;">Table 1</span></b><span style="font-family:Verdana;">). The results of the study suggested that the Drums Alive Kids Beats intervention provided statistically significant improvements in physical and motor skill performance in children with DD, namely, 24% improvement (IG Kinder), 14% (IG Elem) vice a minor 4% improvement (CG). Of note, during this study to measure physical capability pre- and post-intervention, the facilitators noticed significant improvements in behavior in both IG groups;therefore, they chose to conduct a collateral study to measure six behavioral domains which will be documented in a future publication to demonstrate the exclusive relationship between the Drums Alive Kids Beats intervention and improvement in behavior.</span></span>展开更多
Background and Aims: Younger age at first sexual intercourse is associated with a variety of adverse health outcomes. We aimed to gain a clearer understanding of a wide range of individual, family and social factors t...Background and Aims: Younger age at first sexual intercourse is associated with a variety of adverse health outcomes. We aimed to gain a clearer understanding of a wide range of individual, family and social factors that may influence sexual behavior of children and adolescents. Specifically, we examined the relationships of developmental assets with age of first sexual intercourse among a large sample (n = 1061) of adolescent African American males living in low-income neighborhoods in Mobile, Alabama. Methods: Using the Developmental Asset Model as a theoretical guide, we selected variables from adolescent survey data and conducted logistic regression analysis to determine predictors of early age of first sexual intercourse. Results: Nearly one half (49%) of the male survey participants reported that they first had sexual intercourse at the age of 12 or younger. The total number of assets was the strongest predictor of later age (13 years old or later) of first sexual intercourse (OR 1.49, 95% CI = 1.09, 2.04), followed by decision-making skills (OR 1.40, 95% CI = 1.04, 1.86), and positive view of the future (OR 1.36, 95% CI = 1.02, 1.74). Conclusion: There are several developmental assets related to the age of first sexual intercourse. This study found support for the Developmental Asset Model as a framework for promoting sexual and overall adolescent health. Recommendations for asset-building among this population are discussed.展开更多
基金Supported by the Key Medical Research Project of Hebei Province in 2020,No.20201360.
文摘BACKGROUND Postpartum depression(PPD)represents a significant public health concern,adversely affecting both new mothers and their infants.Despite routine early screening,PPD can persist beyond the initial postpartum months,with notably high incidence rates even one year after childbirth.Persistent PPD has been associated with poor developmental outcomes in infants,highlighting the need for continued monitoring and support during this critical period.Understanding the broader impacts of persistent PPD is essential for developing effective interventions to improve maternal and infant well-being.AIM To explore the impact of persistent PPD on infant developmental behavior and maternal self-efficacy.METHODS We recruited 60 postpartum women who experienced persistent depression after childbirth in our hospital from January 2020 to December 2024 as the research subjects.The study collected basic characteristics of both infants and mothers,analyzed the self-efficacy of the mothers and the developmental behaviors of the infants,and conducted a correlation analysis to examine the relationship between postpartum persistent depression in mothers and the developmental behaviors and self-efficacy of infants.The Bootstrap method was used to verify the significance of the mediating effect.RESULTS The basic characteristics of infants and mothers show that 53.33%are male,58.33%are born via vaginal delivery,88.33%have a normal body mass index,51.67%are aged between 25 and 29 years,70%are non-agricultural workers,51.67%have a per capita household income over 4000 yuan,96.67%are full-term births,and 58.33%of the fathers are aged between 26 and 32 years.In terms of infant development behavior,the gross motor skills score is relatively low(38.44±12.15).Regarding maternal self-efficacy,the skill score(45.68±5.49)and mental activity score(46.37±3.72)are both at a low level.Correlation analysis reveals that postpartum persistent depression is significantly negatively correlated with maternal self-efficacy and infant development behavior(β=-0.439,-0.657,P<0.001),while self-efficacy is positively correlated with infant development behavior(β=0.728,P<0.001).The path coefficient and Bootstrap method test indicate that self-efficacy acts as a mediator between postpartum persistent depression and infant development behavior,accounting for 54.80%of the effect(P<0.05),while the direct effect of postpartum persistent depression on infant development behavior is 45.20%(P<0.05).CONCLUSION Persistent PPD significantly negatively impacts infant developmental outcomes,with maternal self-efficacy serving as a partial mediator.These findings suggest that interventions targeting both depressive symptoms and selfenhancement may effectively promote infant health development.
基金supported by the National Key Technologies R&D Program of China during the 12th Five-Year Plan period (2013BAD20B04)
文摘Plant height （PH） is one of the most important agronomic traits of rice, as it directly affects the lodging resistance and the high yield potential. Meanwhile, PH is often constrained by water supply over the entire growth period. In this study, a recombinant inbred line （RIL） derived from Xiaobaijingzi and Kongyu 131 strains grown under drought stress and with normal irrigation over 2 yr （2013 and 2014）, respectively （regarded as four environments）, was used to dissect the genetic basis of PH by developmental dynamics QTL analysis combined with QTL^environment interactions. QTLs with net effects excluding the accumulated effects were detected to explore the relationship between genexgene interactions and genexenvironment interactions in specific growth period. A total of 26 additive QTLs （A-QTLs） and 37 epistatic QTLs （E-QTLs） associated with PH were detected by unconditional and conditional mapping over seven growth periods, qPH-2-3, qPH-4-3, qPH-6-1, qPH-7-1, and qPH-12-5 could be detected by both unconditional and conditional analyses, qPH-4-3 and qPH-7-5 were detected in four stages （periods） to be sequentially expressed QTLs controlling PH continuous variation. QTLs with additive effects （A-QTLs） were mostly expressed in the period $3iS2 （the time interval from stages 2 to 3）, and QTLxenvironment interactions performed actively in the first three stages （periods） which could be an important developmental period for rice to undergo external morphogenesis during drought stress. Several QTLs showed high adaptability for drought stress and many QTLs were closely related to the environments such as qPH-3-5, qPH-2-2 and qPH-6-1. 72.5% of the QTLs with a and aa effects detected by conditional analysis were under drought stress, and the PVE of QTLs detected by conditional analysis under drought stress were also much higher than that under normal irrigation. We infer that environments would influence the detection results and sequential expression of genes was highly influenced by environments as well. Many QTLs （qPH-1-2, qPH-3-5, qPH-4-1, qPH-2-3） coincident with previously identified drought resistance genes. The result of this study is helpful to elucidating the genetic mechanism and regulatory network underlying the development of PH in rice and providing references to marker assisted selection.
文摘Phase separation was studied by the optical microscopy in blends of nylon 6 (PA6) with sodium salt of ethylene/methacrylic acid copolymer (PEMA).The image collecting technology was used to keep track of the development of blends at a certain temperature.The fractal dimension of phase separation was calculated by the image solving technology according to the fractal theory and the self similarity behavior of the process was proved.The relationship of the fractal behavior with composition and experimental temperature was discussed.The fractal behavior of the crystallization development of the crystal phase of PA6 in blends was also discussed and the fractal behavior calculated.
基金This study was supported by Emergency Technology Research Project of Huazhong University of Science and Technology(No.2020kfyXGYJ020).
文摘Objective This study aimed to explore the clinical value of Children Neuropsychological and Behavioral Scale-Revision 2016(CNBS-R2016)for Autism Spectrum Disorder(ASD)screening in the presence of developmental surveillance.Methods All participants were evaluated by the CNBS-R2016 and Gesell Developmental Schedules(GDS).Spearman’s correlation coefficients and Kappa values were obtained.Taking GDS as a reference assessment,the performance of the CNBS-R2016 for detecting the developmental delays of children with ASD was analyzed with receiver operating characteristic(ROC)curves.The efficacy of the CNBS-R2016 to screen for ASD was explored by comparing Communication Warning Behavior with Autism Diagnostic Observation Schedule,Second Edition(ADOS-2).Results In total,150 children aged 12–42 months with ASD were enrolled.The developmental quotients of the CNBS-R2016 were correlated with those of the GDS(r=0.62–0.94).The CNBS-R2016 and GDS had good diagnostic agreement for developmental delays(Kappa=0.73–0.89),except for Fine Motor.There was a significant difference between the proportions of Fine Motor,delays detected by the CNBS-R2016 and GDS(86.0%vs.77.3%).With GDS as a standard,the areas under the ROC curves of the CNBS-R2016 were above 0.95 for all the domains except Fine Motor,which was 0.70.In addition,the positive rate of ASD was 100.0%and 93.5%when the cut-off points of 7 and 12 in the Communication Warning Behavior subscale were used,respectively.Conclusion The CNBS-R2016 performed well in developmental assessment and screening for children with ASD,especially by Communication Warning Behaviors subscale.Therefore,the CNBS-R2016 is worthy of clinical application in children with ASD in China.
文摘Chemical communication plays an important role in survival and reproductive success in mammalian species. In the present study, we examined the ontogenetic pattern of behavioral responses of male giant pandas （Ailuropoda melanoleuca ） to urine odors of conspecific individuals. Our data showed that exposure to the urine of adult females induced a significant increase in sniffing and environmental sniffing/licking behaviors, but a decrease in biting behavior, in males. Males of different ages displayed specific behaviors to female urine odors. Adult males spent more time licking than juvenile and sub-adult males. Further, sub-adult and adult males displayed high levels of environmental sniffing/licking, which was absent in the juvenile males. Juvenile males displayed scent rubbing behavior significantly more frequently than sub-adult and adult males, and also spent more time showing biting behavior than sub-adult males. Finally, juvenile and sub-aduh males showed no difference in response to female and male urine odors. Together, these data suggest that chemosensory cues from conspecific urines induce age-specific responses in male giant pandas.
基金supported by the National Natural Science Foundation ofChina(No.30130120)Scientific Research Startup Foun—dation of Northeast Agricultural University(No.190102)Director’s Found of Key Laboratory of Soybean Biology of Ministy of Education(No.SB06A27)
文摘Seed size is one of the important factors of soybean[Glycine max(L.)Merrill]yield.There have been lots of reports about genetic effects and physiology-ecological researches on seed size,but the genetic behaviors of genes during seeds development were rarely discussed.Analysis of main genetic effects for fresh seed size(FSS)and dry seed size(DSS)of soybean was conducted with diallel cross data by using a seed genetic model.Analyses of unconditional and conditional variances and correlations were used to evaluate the developmental behavior of soybean.The phenotypic means of FSS and DSS in soybean at eight stages among three generations reached the highest value at 9/6 and 9/13,respectively.The means of FSS decreased dramatically after 9/6,but the means of DSS maintained relatively stable tendency at corresponding periods.The unconditional variance analysis showed that FSS and DSS were controlled by embryo,cytoplasmic and maternal effects in the whole growth period.Genetic effects due to cytoplasmic and maternal effects were relatively important for FSS and DSS at most of the growth periods.Conditional variance analysis showed that genes from different genetic system expressed discontinuously in the whole growth period.The net genetic effects due to cytoplasmic and maternal plant on FSS and DSS were larger than those of embryo effects at most of the growth periods.Different genetic system can affect the relationship of various stages to mature solely or simultaneously.Embryo additive effects at 8/16,embryo dominance effects at 8/9 and 8/16,maternal plant dominance effects at 8/2 and 8/16 could ultimately affect the performance of FSS at maturing stage.Embryo additive effects at 8/2 and 9/13,cytoplasm effects at 8/9,maternal plant dominance effects at 8/2 could ultimately affect the performance of DSS.
文摘A comprehensive overview is presented of the literature dealing with the development of sleep-like motility and neuronal activity patterns in non-vertebrate animals. It has been established that spontaneous, periodically modulated, neurogenic bursts of movement appear to be a universal feature of prenatal behavior. New empirical data are presented showing that such ＇seismic sleep＇ or ＇rapid-body-movement＇ bursts in cuttlefish persist for some time after birth. Extensive ontogenetic research in both vertebrates and non-vertebrates is thus essential before current hypotheses about the phylogeny of motorically active sleep-like states can be taken seriously.
文摘The objective of this original pilot study was to determine if the Drums Alive<span style="white-space:nowrap;"><sup>®</sup></span> Kids Beats intervention could provide statistically significant improvements to physical and motor skill performance on participants with Developmental Delays (DD) using the Dusseldorf Motor-Proficiency-Test for children (MOT 4-6) model. The researchers selected the research-based Drums Alive Kids Beat intervention because of its multidisciplinary methodology that in previous studies demonstrated positive effects on physiological, psychological, neurological, educational, rhythmical, and socio-emotional literacy. Facilitators used standardized Drums Alive approved lesson plans and equipment to conduct the intervention through a battery of music, movement and drumming-centered exercises and activities. The 30 participants were German students between 4.9 and 10.2 years of age, without any inclusion or exclusion characteristics, who were divided into three groups consisting of two intervention groups: IG Kindergarten (IG Kinder), IG Elementary<span style="font-family:;" "=""><span style="font-family:Verdana;"> (IG Elem) with varied physical, social, and emotional DD that affected gross and fine motor skills, movement, coordination, and behavioral control;and, a Control Group (CG) that had normal physical and motor skill development (</span><b><span style="font-family:Verdana;">Table 1</span></b><span style="font-family:Verdana;">). The results of the study suggested that the Drums Alive Kids Beats intervention provided statistically significant improvements in physical and motor skill performance in children with DD, namely, 24% improvement (IG Kinder), 14% (IG Elem) vice a minor 4% improvement (CG). Of note, during this study to measure physical capability pre- and post-intervention, the facilitators noticed significant improvements in behavior in both IG groups;therefore, they chose to conduct a collateral study to measure six behavioral domains which will be documented in a future publication to demonstrate the exclusive relationship between the Drums Alive Kids Beats intervention and improvement in behavior.</span></span>
文摘Background and Aims: Younger age at first sexual intercourse is associated with a variety of adverse health outcomes. We aimed to gain a clearer understanding of a wide range of individual, family and social factors that may influence sexual behavior of children and adolescents. Specifically, we examined the relationships of developmental assets with age of first sexual intercourse among a large sample (n = 1061) of adolescent African American males living in low-income neighborhoods in Mobile, Alabama. Methods: Using the Developmental Asset Model as a theoretical guide, we selected variables from adolescent survey data and conducted logistic regression analysis to determine predictors of early age of first sexual intercourse. Results: Nearly one half (49%) of the male survey participants reported that they first had sexual intercourse at the age of 12 or younger. The total number of assets was the strongest predictor of later age (13 years old or later) of first sexual intercourse (OR 1.49, 95% CI = 1.09, 2.04), followed by decision-making skills (OR 1.40, 95% CI = 1.04, 1.86), and positive view of the future (OR 1.36, 95% CI = 1.02, 1.74). Conclusion: There are several developmental assets related to the age of first sexual intercourse. This study found support for the Developmental Asset Model as a framework for promoting sexual and overall adolescent health. Recommendations for asset-building among this population are discussed.
