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Objective@#To explore the pattern of change of axial length/curvatrue radius ratio (AL/CR) and associated factors in primary and secondary school students in Yunnan, so as to provide scientific basis and prospective guidance for early myopia intervention and control.@*Methods@#A total of 685 students from grades 2 to 3 and grade 7 in 2 cities/counties in Yunnan Province were selected by multi stage stratified random cluster sampling method in 2020. All the participants were followed up twice with questionnaire of myopia related factors, uncorrected distance visual acuity, and refractive parameter measurement from October,2021 and March,2023,respectivelty. The distribution and change of AL/CR in different classes and groups were analyzed, and the influencing factos of AL/CR cumulative progression were explored using generalized linear model.@*Results@#AL/CR ratio in primary school students was (2.95±0.09) at baseline, increased to (2.99±0.11) at the first follow up and (3.04±0.12) at the second follow up. AL/CR ratio in middle school students(3.08±0.13) at baseline, increased to (3.12±0.15) at the first follow up and (3.15±0.14) at the second follow up. The generalized linear model showed that after controlling for environmental factors, ethnicity ( β =-0.017) , cumulative progression of the SE ( β =-0.027) influenced the changes of AL/CR ratio among the primary school students, whereas the changes of AL/CR ratio were associated with baseline AL ( β =-0.005), baseline corneal curvatrue radius ( β =0.032) and cumulative progression of SE( β =-0.035) among middle school students ( P <0.05).@*Conclusions@#The AL/CR ratio of primary and secondary school students in Yunnan can be used to judge different refractive status types, but its variation is not only related to SE progression, but also affected by different ethnic groups and baseline ocular biological parameters. so the value of AL/CR application in assessing the progression of myopia needs to be further confirmed.
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ABSTRACT Objective: To explore the effects of electric stimulation and biofeedback therapy in patients with postpartum pelvic organ prolapse and to identify factors that can affect therapeutic efficacy outcomes. Method: This retrospective study analysed clinical data about patients with postpartum pelvic organ prolapse. A total of 328 women with pelvic organ prolapse at 6 weeks postpartum were recruited from one tertiary hospitals in Sichuan province in China, between March 2019 and March 2022. The prognostic factors of therapeutic efficacy were analysed using logistic regression and decision tree model. Results: Overall, 259 women showed clinical benefits from the treatment. The logistic regression model showed that parity, pelvic floor muscle training at home, and the pelvic organ prolapse quantitation stage before treatment were independent prognostic factors. The decision tree model showed that the pelvic organ prolapse quantitation stage before treatment was the main prognostic factor, followed by parity. There was no significant difference in the area under the receiver operating characteristic curve between the two models. Conclusion: Parity, pelvic floor muscle training at home, and the pelvic organ prolapse quantitation stage before treatment were important prognostic factors of electric stimulation and biofeedback therapy on postpartum pelvic organ prolapse.
RESUMO Objetivo: Explorar o efeito da estimulação elétrica e da terapia de biofeedback em pacientes com prolapso de órgãos pélvicos pós-parto e identificar fatores que podem afetar os resultados da eficácia terapêutica. Método: Este estudo é uma análise retrospectiva de dados clínicos de pacientes com prolapso de órgãos pélvicos pós-parto. Um total de 328 mulheres com prolapso de órgãos pélvicos nas seis semanas pós-parto foram recrutadas em um hospital terciário na província de Sichuan, na China, entre março de 2019 e março de 2022. Os fatores prognósticos de eficácia terapêutica foram analisados por meio de regressão logística e modelo de árvore de decisão. Resultados: No geral, 259 mulheres apresentaram benefícios clínicos com o tratamento. O modelo de regressão logística mostrou que a paridade, o treinamento muscular do assoalho pélvico em casa e o estágio de quantificação do prolapso de órgãos pélvicos antes do tratamento foram fatores prognósticos independentes. O modelo de árvore de decisão mostrou que o estágio de quantificação do prolapso de órgãos pélvicos antes do tratamento foi o principal fator prognóstico, seguido pela paridade. Não houve diferença significativa na área sob a curva ROC entre os dois modelos. Conclusão: A paridade, o treinamento muscular do assoalho pélvico em casa e o estágio de quantificação do prolapso de órgãos pélvicos antes do tratamento foram importantes fatores prognósticos da estimulação elétrica e da terapia de biofeedback no prolapso de órgãos pélvicos pós-parto.
RESUMEN Objetivo: Explorar el efecto de la estimulación eléctrica y la terapia de biorretroalimentación en pacientes con prolapso posparto de órganos pélvicos e identificar los factores que pueden afectar los resultados de la eficacia terapéutica. Método: Este estudio es un análisis retrospectivo de los datos clínicos de pacientes con prolapso posparto de órganos pélvicos. Entre marzo de 2019 y marzo de 2022, se reclutaron un total de 328 mujeres con prolapso de órganos pélvicos en las seis semanas posteriores al parto en un hospital terciario de la provincia de Sichuan, China. Los factores pronósticos de eficacia terapéutica se analizaron mediante regresión logística y el modelo de árbol de decisión. Resultados: En total, 259 mujeres mostraron beneficios clínicos relacionados con el tratamiento. El modelo de regresión logística mostró que la paridad, el entrenamiento en casa de la musculatura del suelo pélvico y la etapa de cuantificación del prolapso de órganos pélvicos antes del tratamiento fueron factores pronósticos independientes. El modelo de árbol de decisión mostró que la etapa de cuantificación del prolapso de órganos pélvicos previa al tratamiento fue el principal factor pronóstico, seguido de la paridad. No hubo diferencias significativas en el área bajo la curva ROC entre los dos modelos. Conclusión: La paridad, el entrenamiento en casa de la musculatura del suelo pélvico y la etapa de cuantificación del prolapso de órganos pélvicos previa al tratamiento fueron factores pronósticos importantes de la estimulación eléctrica y la terapia de biorretroalimentación en el prolapso posparto de órganos pélvicos.
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Objective@#To explore the related factors of myopia among children and adolescents in Yunnan Province, and to predict and evaluate the influencing factors, so as to provide a scientific theoretical basis for the prevention and control of myopia.@*Methods@#From March 9 to 14, 2023, 848 students from 6 primary and secondary schools in Dali and Lijiang of Yunnan Province were selected by multi stage stratified random cluster sampling method for visual acuity detection and questionnaire survey on myopia related factors. Multivariate Logistic regression analysis was used to establish a Nomogram prediction model for the selected influencing factors.@*Results@#The overall myopia rate of the respondents was 68.3%, the myopia rate of boys (63.4%) was lower than that of girls (72.9%), and the myopia rate of primary school students (46.7%) was lower than that of junior high school students (81.1%), and the difference was statistically significant（ χ 2=8.71, 108.07, P <0.05). Daily eye exercises, activities outside the teaching building during recess, having daily sleep time of 7-9 and >9 h, having both parents without myopia were negatively correlated with the occurrence of myopia in children and adolescents in Yunnan Province ( OR=0.64, 0.63, 0.56, 0.28, 0.48, P < 0.05 ). The reading and writing time after school ≥3 h per day and parents unrestricted time to play video games were positively correlated with myopia ( OR=1.94, 1.78, P <0.05). Based on the influencing factors, a Nomogram prediction model was established to quantitatively evaluate the risk of myopia. The results showed that greater risk for myopia was associated with sleep duration, parental history of myopia, and the time spent reading and writing after school every day.@*Conclusion@#Both genetic factors and environmental factors are related to myopia in children and adolescents. The prediction model of nomogram is beneficial for screening high risk factors of myopia and taking corresponding prevention and treatment measures.