摘要
目的比较并初步量化盲法和非盲设计下增强自我效能感后骨折患者心理状态研究结果差异的大小,为护理临床试验中重视盲法原则的应用提供客观依据。方法以骨折入院的患者为研究对象。第1阶段87例研究对象为非盲研究,随机分为增强效能组和对照组,干预后采用症状自评量表(symptom checklist90,SCL-90)评价患者心理状态;第2阶段96例为盲法研究,其分组、干预和结果评价等方法与第1阶段均相同。比较盲法和非盲设计下增强自我效能感后骨折患者心理状态的差异。结果第1、第2阶段增强效能组患者SCL-90总分分别较对照组得分有明显下降,组间比较,差异具有统计学意义;非盲设计下患者SCL-90心理状态结果评定比盲法设计下的SCL-90结果改变率增加12.7%,其95%的置信区间为4.1%～21.3%。结论对于骨折患者心理状态的评价,非盲设计可能夸大结果。建议尤其是以心理状态等主观指标为研究结果的研究中需采用盲法设计。
Objective To compare the differences in investigation results of mental states in bone fracture patients after self efficacy is enhanced by blind design and non;blind design and provide the objective basis for the application blindness principle in clinical trials of nursing.Methods In the first stage,non;blind design was used in 87 fracture patients,who were randomized into efficacy enhancement group and control group.SCL;90 was used to assess the psychological status of patients.In the second stage,blind design was used among another 96 fracture patients,who were also divided into efficacy enhancement group and control group.The other treatments are the same as in the first stage.Results For the two stages,the scores of the efficacy enhancement groups by SCL;90 were both obviously decreased compare with control groups（P 0.01）.By non;blind design,the score by SCL;90 was changed by 12.7% compared to the score by blind design,with a possibility of 4.1% to 21.3% in a confidence interval of 95%.Conclusion In the assessment of the psychological status of patients with fractures,non;blind design may exaggerate results.It is suggested to use blind design in the research of mental state.
出处
《现代临床护理》
2011年第11期1-2,22,共3页
Modern Clinical Nursing
基金
南通大学自然科学类科研基金资助项目
项目编号为09Z045
关键词
科研设计
盲法
骨折
自我效能
心理状态
research design
blindness
fracture
self
efficacy
mental status
