目的:分析并探讨南京市4所小学学生近视流行现状和与屈光相关的眼部生物学参数兼关系,为近视防控提供参考依据。方法:采用随机整群抽样调查方法,抽取南京市4所小学217名一年级学生,开展连续6年的随访研究。结果:随访6年后,小学生近视检...目的:分析并探讨南京市4所小学学生近视流行现状和与屈光相关的眼部生物学参数兼关系,为近视防控提供参考依据。方法:采用随机整群抽样调查方法,抽取南京市4所小学217名一年级学生,开展连续6年的随访研究。结果:随访6年后,小学生近视检出率由基线值6.70%增长至72.63%;中度近视人数在随访期间逐年增多,中度近视构成比由基线值8.33%增长至52.31%;随访初期167名非近视屈光群体中,有124名在随访期间发展为近视,其中3~4、5~6年级为近视高发期;随访期间,轴率比(axial length/corneal radius of curvature,AL/CRC)由基线数值2.89±0.08增至3.13±0.14(P值<0.05);等效球镜度(spherical equivalent refraction,SER)与最小分辨角对数(logarithm of the minimum angle of resolution,logMAR)视力、AL和AL/CRC(1年级除外)具有明显相关性(P值均<0.05)。结论:南京市4所小学学生的近视检出率随年级逐渐升高,其中中度近视构成比增加最为显著;3~4、5~6年级为近视发病高峰阶段;SER与logMAR视力、AL和AL/CRC均存在相关性,其中AL/CRC可考虑作为近视筛查的评估指标。展开更多
Objective The migrant population is a vulnerable group for HIV infection in China.Understanding potential epidemic trends among migrants is critical for developing HIV preventative measures in this population.Methods ...Objective The migrant population is a vulnerable group for HIV infection in China.Understanding potential epidemic trends among migrants is critical for developing HIV preventative measures in this population.Methods The Estimation and Projection Package （EPP） model was used to process prefecture and county-level surveillance data to generate HIV prevalence and epidemic trends for migrant populations in China.Results The prevalence of HIV among migrants in 2009 was estimated at 0.075% （95% CI：0.042%,0.108%） in China.The HIV epidemic among migrants is likely to increase over the next 5 years,with the prevalence expected to reach 0.110% （95% CI：0.070%,0.150%） by 2015.Conclusion Although the 2009 estimates for the HIV/AIDS epidemic in China indicate a slower rate of increase compared with the national HIV/AIDS epidemic,it is estimated to persistently increase among migrants over the next 5 years.Migrants will have a strong impact on the overall future of the HIV epidemic trend in China and evidence-based prevention and monitoring efforts should be expanded for this vulnerable population.展开更多
文摘目的:分析并探讨南京市4所小学学生近视流行现状和与屈光相关的眼部生物学参数兼关系,为近视防控提供参考依据。方法:采用随机整群抽样调查方法,抽取南京市4所小学217名一年级学生,开展连续6年的随访研究。结果:随访6年后,小学生近视检出率由基线值6.70%增长至72.63%;中度近视人数在随访期间逐年增多,中度近视构成比由基线值8.33%增长至52.31%;随访初期167名非近视屈光群体中,有124名在随访期间发展为近视,其中3~4、5~6年级为近视高发期;随访期间,轴率比(axial length/corneal radius of curvature,AL/CRC)由基线数值2.89±0.08增至3.13±0.14(P值<0.05);等效球镜度(spherical equivalent refraction,SER)与最小分辨角对数(logarithm of the minimum angle of resolution,logMAR)视力、AL和AL/CRC(1年级除外)具有明显相关性(P值均<0.05)。结论:南京市4所小学学生的近视检出率随年级逐渐升高,其中中度近视构成比增加最为显著;3~4、5~6年级为近视发病高峰阶段;SER与logMAR视力、AL和AL/CRC均存在相关性,其中AL/CRC可考虑作为近视筛查的评估指标。
文摘Objective The migrant population is a vulnerable group for HIV infection in China.Understanding potential epidemic trends among migrants is critical for developing HIV preventative measures in this population.Methods The Estimation and Projection Package （EPP） model was used to process prefecture and county-level surveillance data to generate HIV prevalence and epidemic trends for migrant populations in China.Results The prevalence of HIV among migrants in 2009 was estimated at 0.075% （95% CI：0.042%,0.108%） in China.The HIV epidemic among migrants is likely to increase over the next 5 years,with the prevalence expected to reach 0.110% （95% CI：0.070%,0.150%） by 2015.Conclusion Although the 2009 estimates for the HIV/AIDS epidemic in China indicate a slower rate of increase compared with the national HIV/AIDS epidemic,it is estimated to persistently increase among migrants over the next 5 years.Migrants will have a strong impact on the overall future of the HIV epidemic trend in China and evidence-based prevention and monitoring efforts should be expanded for this vulnerable population.
