SF-36量表用于妊娠早期女性生命质量评价的信度和效度

Reliability and validity of SF-36 scale in pregnant women during the first trimester of pregnancy

目的:分析SF-36健康调查简表(Short-form health survey-36,SF-36)用于妊娠早期女性生命质量评价的信度和效度。方法:选择2020年1月至2021年1月于首都医科大学附属北京妇产医院产科门诊建档的18~40岁、妊娠6^(+0)~13^(+6)周的女性进行调查。利用分半信度和Cronbach′sα系数评价SF-36量表用于妊娠早期女性生命质量评价的信度,应用AMOS 24.0软件评价SF-36量表集合效度和区分效度,采用相关分析和非参数检验以自评健康状况为标准进行标准关联效度分析,结构效度评价采用探索性因子分析和基于结构方程模型的验证性因子分析。结果:SF-36量表用于妊娠早期女性生命质量评价具有良好的信度(分半信度R=0.901,Cronbach′sα系数=0.878),量表集合效度、区分效度和准则效度(r=0.907)良好,二阶验证性因子分析模型对数据拟合度较差(RMSEA=0.070,χ^(2)/dF=3.566,GFI=0.813,CFI=0.814,TLI=0.792,NFI=0.761)。结论:SF-36量表用于妊娠早期女性生命质量评价具有良好的信度、集合效度、区分效度和标准关联效度,但结构效度欠佳。

Objective To evaluate the reliability and validity of Short-form health survey-36(SF-36)during the first trimester of pregnancy.Methods From January 2020 to January 2021,pregnant women aged 18―40 during the first trimester visit were admitted to the Obstetric Department of Beijing Obstetrics and Gynecology Hospital,Capital Medical University.Split-half reliability and Cronbach′sαcoefficients were used to evaluate the reliability.The convergent and discriminative validity were evaluated by using AMOS 24.0 and the criterion-rated validity was evaluated with correlation analysis and non-parameter test.Exploratory factor analysis and confirmatory factor analysis based on structural equation modeling were used in the evaluation of contract validity.Results SF-36 scale had good reliability(split-half reliability:R=0.901,Cronbach′sαcoefficients=0.878),convergent validity,discriminate validity and the criterion-rated validity(r=0.907).Second-order confirmatory factor analysis model was not well-fitted(RMSEA=0.070,χ^(2)/dF=3.566,GFI=0.813,CFI=0.814,TLI=0.792,NFI=0.761),indicating that the construct validity was poor.Conclusions The reliability,consolidation validity,discrimination validity and criterion-related validity of Sf-36 scale are good,while the construct validity is poor.Improvement is needed when the scale is used for pregnant women.