This study evaluates the potential impacts of climate change on Nigeria＇s agriculture using Ricardian approach and brief analysis of farmer＇s adaptation strategies. Sampling was based on rural household survey condu...This study evaluates the potential impacts of climate change on Nigeria＇s agriculture using Ricardian approach and brief analysis of farmer＇s adaptation strategies. Sampling was based on rural household survey conducted on farming households in all the six zones of the country. The sampling frame considered the traditional typology of the country＇s agro ecological zones and dominant agricultural commodities. Random sampling was used to select 800 farming households from each of the selected 20 villages; however, only 650 household＇s data were useful for subsequent analysis. Both primary and secondary data were collected. About 83 percent of the respondents＇ perceived temperature is higher, while multiple crops cultivation under dry land farms is the most predominant adaptation strategy. Ricardian regression results show the estimated coefficient for adaptation is positive and statistically significant, thus suggesting that farmers who adopted climate change adaptation strategies had higher net revenue than those who did not. The marginal effect estimates show that households with climate change adaptation measures tended to produce about 87 kg more of food per hectare than those who did not take such measures. This accounts for about 15% of change in output in the survey areas.展开更多
Background & Aims: The study investigated the relationship between objective and subjective nutritional status parameters and quality of life in HIV seropositive patients. Methods: Retrospective review of clinic r...Background & Aims: The study investigated the relationship between objective and subjective nutritional status parameters and quality of life in HIV seropositive patients. Methods: Retrospective review of clinic records of 150 HIV seropositive patients at a teaching hospital in Nigeria. Nutritional status was evaluated objectively with anthropometry including body mass index (BMI), subjectively with malnutrition universal screening tool (MUST) and subjective global assessment (SGA) tool. Data on quality of life (QOL) assessed with WHOQOL (Bref), and CD4 count were extracted. Correlation analysis and linear regression were done to investigate the relationship between variables, level of significance set at p < 0.05 respectively. The CD4 count correlated with percentage body fat (r = 0.224), MUST (r = -0.186) and SGA (r = -0.192), p < 0.05 respectively, but not with any of the QOL domains. Weight, MUST, SGA, percentage body fat were significant predictors of the percentage weight change in 6 months. Conclusions: BMI has significant positive association with psychological domain of QOL. MUST and SGA have significant negative association with certain domains. QOL did not predict short-term weight changes, as did the current weight, MUST, and SGA.展开更多
文摘This study evaluates the potential impacts of climate change on Nigeria＇s agriculture using Ricardian approach and brief analysis of farmer＇s adaptation strategies. Sampling was based on rural household survey conducted on farming households in all the six zones of the country. The sampling frame considered the traditional typology of the country＇s agro ecological zones and dominant agricultural commodities. Random sampling was used to select 800 farming households from each of the selected 20 villages; however, only 650 household＇s data were useful for subsequent analysis. Both primary and secondary data were collected. About 83 percent of the respondents＇ perceived temperature is higher, while multiple crops cultivation under dry land farms is the most predominant adaptation strategy. Ricardian regression results show the estimated coefficient for adaptation is positive and statistically significant, thus suggesting that farmers who adopted climate change adaptation strategies had higher net revenue than those who did not. The marginal effect estimates show that households with climate change adaptation measures tended to produce about 87 kg more of food per hectare than those who did not take such measures. This accounts for about 15% of change in output in the survey areas.
文摘Background & Aims: The study investigated the relationship between objective and subjective nutritional status parameters and quality of life in HIV seropositive patients. Methods: Retrospective review of clinic records of 150 HIV seropositive patients at a teaching hospital in Nigeria. Nutritional status was evaluated objectively with anthropometry including body mass index (BMI), subjectively with malnutrition universal screening tool (MUST) and subjective global assessment (SGA) tool. Data on quality of life (QOL) assessed with WHOQOL (Bref), and CD4 count were extracted. Correlation analysis and linear regression were done to investigate the relationship between variables, level of significance set at p < 0.05 respectively. The CD4 count correlated with percentage body fat (r = 0.224), MUST (r = -0.186) and SGA (r = -0.192), p < 0.05 respectively, but not with any of the QOL domains. Weight, MUST, SGA, percentage body fat were significant predictors of the percentage weight change in 6 months. Conclusions: BMI has significant positive association with psychological domain of QOL. MUST and SGA have significant negative association with certain domains. QOL did not predict short-term weight changes, as did the current weight, MUST, and SGA.
