Longitudinal data with ordinal outcomes commonly arise in clinical and social studies,where the purpose of interest is usually quantile curves rather than a simple reference range.In this paper we consider Bayesian no...Longitudinal data with ordinal outcomes commonly arise in clinical and social studies,where the purpose of interest is usually quantile curves rather than a simple reference range.In this paper we consider Bayesian nonlinear quantile regression for longitudinal ordinal data through a latent variable.An efficient Metropolis–Hastings within Gibbs algorithm was developed for model fitting.Simulation studies and a real data example are conducted to assess the performance of the proposed method.Results show that the proposed approach performs well.展开更多
Background:Although great success has been achieved,schistosomiasis remains a major public health concern in China,and the remaining core endemic regions are concentrated along the middle and lower reaches of the Yang...Background:Although great success has been achieved,schistosomiasis remains a major public health concern in China,and the remaining core endemic regions are concentrated along the middle and lower reaches of the Yangtze River.In this longitudinal study,we evaluated the effectiveness of a multidisciplinary,integrated approach for schistosomiasis elimination in a historically hyper-endemic region in the lower reaches of the Yangtze River,China over the 10-year period from 2005 through 2014.Methods:A three-step roadmap for schistosomiasis elimination was designed in the study site,and multidisciplinary,integrated interventions were implemented by the health,agriculture,water resources development,land and resources,and forestry sectors from 2005 to 2014,including chemotherapy for infected individuals,health education,management of the source of Schistosoma japonicum infection,and intermediate host snail control.The annual number of schistosomiasis patients,S.japonicum infection in humans,bovines and Oncomelania hupensis snails,and water infectivity were observed to assess the effectiveness of the multidisciplinary,integrated approach for the elimination of schistosomiasis.Results:There was a tendency towards a gradual decline in both the number of schistosomiasis cases and the prevalence of S.japonicum human infection across the study period from 2005 through 2014.No S.japonicum human infection was detected since 2012,and no acute infection was seen since 2006.During the study period,no infection was found in bovines,and a 0.03%overall infection rate was observed in O.hupensis snails.Since 2009,no infected snails were identified,and the area of both snail habitats and infected snail habitats appeared a reduction over the study period.Following the 3-year multidisciplinary,integrated control,infection control was achieved,and transmission control was achieved after 6-year implementation,with all infected snails and water infectivity eliminated;in addition,the 10-year implementation resulted in interruption of schistosomiasis transmission in the study site in 2014.Conclusions:The results of the present 10-year longitudinal study demonstrate that the multidisciplinary,integrated approach is effective for the elimination of schistosomiasis as a public health problem in the lower reaches of the Yangtze River,China.展开更多
目的:比较经肌间隙入路单开门椎管扩大椎板成形术与传统后正中入路单开门椎管扩大椎板成形术治疗颈椎后纵韧带骨化症(ossification of the posterior longitudinal ligament,OPLL)的临床疗效。方法:2011年6月~2014年9月在我院行颈椎单...目的:比较经肌间隙入路单开门椎管扩大椎板成形术与传统后正中入路单开门椎管扩大椎板成形术治疗颈椎后纵韧带骨化症(ossification of the posterior longitudinal ligament,OPLL)的临床疗效。方法:2011年6月~2014年9月在我院行颈椎单开门椎管扩大椎板成形术治疗的颈椎OPLL患者共计32例,其中14例患者采用经肌间隙入路(A组),年龄42~70岁(56.9±9.8岁);18例患者采用传统后正中入路(B组),年龄40~73岁(56.7±9.0岁)。两组患者的年龄、性别、脊髓受压累及节段及开门节段比较均无统计学差异(P>0.05)。记录两组的手术时间、术中出血量、术后引流量及术后并发症发生情况;记录两组患者术前和术后3个月、1年、2年及末次随访时日本骨科协会(Japanese Orthopedic Association,JOA)评分、颈痛视觉模拟评分(visual analogue score,VAS)、颈椎功能障碍指数(neck disability index,NDI)及SF-36评分,评估其手术效果。术前和术后3个月、1年、2年及末次随访时通过颈椎X线片测量颈椎矢状面C2-7 Cobb角、颈椎活动度(range of motion,ROM)。术前及末次随访时在颈椎横断面MRI上测量颈后伸肌群肌肉面积,计算术后颈后伸肌群肌肉萎缩率。结果:所有患者均获得随访,A组随访时间为52~66个月(59.4±4.2个月),B组为56~68个月(61.4±3.8个月),两组随访时间无统计学差异(P>0.05)。两组患者术后引流量无统计学差异(P>0.05);但A组术中出血量较B组大(339.0±183.1ml vs 277.0±171.4ml)、手术时间较B组长(197.0±28.9min vs 149.0±25.3min),差异均有统计学意义(P<0.05)。A组轴性症状发生率(14.3%,2/14)明显低于B组(38.9%,7/18)(P<0.05)。两组患者术后3个月、1年、2年及末次随访时JOA评分、VAS评分、NDI及SF-36评分与术前比较均有明显改善(P<0.05),两组VAS、NDI及SF-36评分组内术后各时间点间比较均无统计学差异(P>0.05);两组在术后1年、2年JOA评分均较术后3个月增加(P<0.05),但末次随访时较术后2年有所降低,且B组降低有统计学意义(P<0.05)。两组间比较,术前JOA评分、VAS评分、NDI及SF-36评分差异无统计学意义(P>0.05);在术后1年、2年及末次随访时,A组NDI、SF-36评分均优于B组(P<0.05),术后3个月、1年、2年时两组间JOA评分无统计学差异(P>0.05),但末次随访时B组JOA评分较A组差(P<0.05)。术后3个月、1年、2年及末次随访时,B组患者C2-7 Cobb角较术前降低;且在术后1年、2年及末次随访时较A组低(P<0.05);两组术后3个月、1年、2年及末次随访时颈椎C2-7 ROM均较术前明显降低(P<0.05);且在术后3个月、1年、2年及末次随访时,B组颈椎C2-7 ROM均较A组差(P<0.05)。末次随访时A组颈后伸肌总萎缩率为(28.3±4.8)%,B组为(41.6±9.2)%,差异有统计学意义(P<0.05)。结论:经肌间隙入路单开门椎管扩大椎板成形术与传统后正中入路单开门椎管扩大椎板成形术治疗颈椎OPLL神经功能改善结果一致。但长期随访结果显示经肌间隙入路单开门椎管扩大椎板成形术在对轴性症状的减少、生活质量的改善、颈椎曲度及神经功能改善的维持等方面均优于传统后正中入路单开门椎管扩大椎板成形术。展开更多
基金supported in part by the National Key Research and Development Plan(No.2016YFC0800100)National Natural Science Foundation of China Grant 11671374 and 71631006.
文摘Longitudinal data with ordinal outcomes commonly arise in clinical and social studies,where the purpose of interest is usually quantile curves rather than a simple reference range.In this paper we consider Bayesian nonlinear quantile regression for longitudinal ordinal data through a latent variable.An efficient Metropolis–Hastings within Gibbs algorithm was developed for model fitting.Simulation studies and a real data example are conducted to assess the performance of the proposed method.Results show that the proposed approach performs well.
基金This study was supported by the grants from the National Science&Technology Pillar Program of China(grant no.2009BAI78B06)Jiangsu Provincial Department of Science and Technology(grant no.BL2014021)+1 种基金Jiangsu Provincial Young Talents in Medical Sciences(grant no.QNRC2016621)Jiangsu Department of Health(grant no.Q201410).
文摘Background:Although great success has been achieved,schistosomiasis remains a major public health concern in China,and the remaining core endemic regions are concentrated along the middle and lower reaches of the Yangtze River.In this longitudinal study,we evaluated the effectiveness of a multidisciplinary,integrated approach for schistosomiasis elimination in a historically hyper-endemic region in the lower reaches of the Yangtze River,China over the 10-year period from 2005 through 2014.Methods:A three-step roadmap for schistosomiasis elimination was designed in the study site,and multidisciplinary,integrated interventions were implemented by the health,agriculture,water resources development,land and resources,and forestry sectors from 2005 to 2014,including chemotherapy for infected individuals,health education,management of the source of Schistosoma japonicum infection,and intermediate host snail control.The annual number of schistosomiasis patients,S.japonicum infection in humans,bovines and Oncomelania hupensis snails,and water infectivity were observed to assess the effectiveness of the multidisciplinary,integrated approach for the elimination of schistosomiasis.Results:There was a tendency towards a gradual decline in both the number of schistosomiasis cases and the prevalence of S.japonicum human infection across the study period from 2005 through 2014.No S.japonicum human infection was detected since 2012,and no acute infection was seen since 2006.During the study period,no infection was found in bovines,and a 0.03%overall infection rate was observed in O.hupensis snails.Since 2009,no infected snails were identified,and the area of both snail habitats and infected snail habitats appeared a reduction over the study period.Following the 3-year multidisciplinary,integrated control,infection control was achieved,and transmission control was achieved after 6-year implementation,with all infected snails and water infectivity eliminated;in addition,the 10-year implementation resulted in interruption of schistosomiasis transmission in the study site in 2014.Conclusions:The results of the present 10-year longitudinal study demonstrate that the multidisciplinary,integrated approach is effective for the elimination of schistosomiasis as a public health problem in the lower reaches of the Yangtze River,China.
文摘目的:比较经肌间隙入路单开门椎管扩大椎板成形术与传统后正中入路单开门椎管扩大椎板成形术治疗颈椎后纵韧带骨化症(ossification of the posterior longitudinal ligament,OPLL)的临床疗效。方法:2011年6月~2014年9月在我院行颈椎单开门椎管扩大椎板成形术治疗的颈椎OPLL患者共计32例,其中14例患者采用经肌间隙入路(A组),年龄42~70岁(56.9±9.8岁);18例患者采用传统后正中入路(B组),年龄40~73岁(56.7±9.0岁)。两组患者的年龄、性别、脊髓受压累及节段及开门节段比较均无统计学差异(P>0.05)。记录两组的手术时间、术中出血量、术后引流量及术后并发症发生情况;记录两组患者术前和术后3个月、1年、2年及末次随访时日本骨科协会(Japanese Orthopedic Association,JOA)评分、颈痛视觉模拟评分(visual analogue score,VAS)、颈椎功能障碍指数(neck disability index,NDI)及SF-36评分,评估其手术效果。术前和术后3个月、1年、2年及末次随访时通过颈椎X线片测量颈椎矢状面C2-7 Cobb角、颈椎活动度(range of motion,ROM)。术前及末次随访时在颈椎横断面MRI上测量颈后伸肌群肌肉面积,计算术后颈后伸肌群肌肉萎缩率。结果:所有患者均获得随访,A组随访时间为52~66个月(59.4±4.2个月),B组为56~68个月(61.4±3.8个月),两组随访时间无统计学差异(P>0.05)。两组患者术后引流量无统计学差异(P>0.05);但A组术中出血量较B组大(339.0±183.1ml vs 277.0±171.4ml)、手术时间较B组长(197.0±28.9min vs 149.0±25.3min),差异均有统计学意义(P<0.05)。A组轴性症状发生率(14.3%,2/14)明显低于B组(38.9%,7/18)(P<0.05)。两组患者术后3个月、1年、2年及末次随访时JOA评分、VAS评分、NDI及SF-36评分与术前比较均有明显改善(P<0.05),两组VAS、NDI及SF-36评分组内术后各时间点间比较均无统计学差异(P>0.05);两组在术后1年、2年JOA评分均较术后3个月增加(P<0.05),但末次随访时较术后2年有所降低,且B组降低有统计学意义(P<0.05)。两组间比较,术前JOA评分、VAS评分、NDI及SF-36评分差异无统计学意义(P>0.05);在术后1年、2年及末次随访时,A组NDI、SF-36评分均优于B组(P<0.05),术后3个月、1年、2年时两组间JOA评分无统计学差异(P>0.05),但末次随访时B组JOA评分较A组差(P<0.05)。术后3个月、1年、2年及末次随访时,B组患者C2-7 Cobb角较术前降低;且在术后1年、2年及末次随访时较A组低(P<0.05);两组术后3个月、1年、2年及末次随访时颈椎C2-7 ROM均较术前明显降低(P<0.05);且在术后3个月、1年、2年及末次随访时,B组颈椎C2-7 ROM均较A组差(P<0.05)。末次随访时A组颈后伸肌总萎缩率为(28.3±4.8)%,B组为(41.6±9.2)%,差异有统计学意义(P<0.05)。结论:经肌间隙入路单开门椎管扩大椎板成形术与传统后正中入路单开门椎管扩大椎板成形术治疗颈椎OPLL神经功能改善结果一致。但长期随访结果显示经肌间隙入路单开门椎管扩大椎板成形术在对轴性症状的减少、生活质量的改善、颈椎曲度及神经功能改善的维持等方面均优于传统后正中入路单开门椎管扩大椎板成形术。
