To assess the validity and reliability of the Japanese version of the Daily Record of Severity of Problems (J-DRSP, 24 items) for evaluating symptoms of premenstrual syndrome (PMS), and to develop a short form version of the J-DRSP. Using the “DRSP-JAPAN” smartphone app, we collected daily J-DRSP records from cycle day − 6 (CD − 6) to CD 10, with CD 1 representing the menstruation onset date. Factorial validity (exploratory factor analysis: EFA, confirmatory factor analysis: CFA) and criterion validity were examined, and test-retest reliability (intraclass correlation: ICC) evaluated. The short-form version of the J-DRSP was developed using classical test theory. In total, 304 women participated and 243 recorded symptoms on at least 4 days spanning the week of the luteal phase (CD − 6 to CD 0) and 4 days spanning the week of the follicular phase (CD 4 to CD 10), with CD 0 set as the day before menstruation started. The EFA revealed a two-factor structure. Kaiser-Meyer-Olkin was 0.992, and Bartlett’s test of sphericity chi-square was 3653.89 (P < 0.001). However, the model fitness of CFA was found to be suboptimal (comparative fit index (CFI): 0.83, root mean square error of approximation (RMSEA): 0.12). Total scores for J-DRSP and the sum scores for each subscale were higher on CD 0 than on CD 10 (p < 0.001), suggesting validity for some criteria. ICC values for the total J-DRSP score from CD 0 to CD − 1, and between CD 9 to CD 10, were 0.60 (95% CI: 0.48–0.72) and 0.76 (95% CI: 0.69–0.82), respectively. Having eliminated some original items after considering factor loading for each item, we developed an 8-item Short-Form J-DRSP (J-DRSP (SF)) comprising 2 factors (S-Psychological and S-Physical, 4 items for each). CFA showed a better model fit (CFI: 0.99, RMSEA: 0.048), and ICC values in the luteal and follicular phases were 0.61 (95%CI: 0.51–0.68) and 0.70 (95%CI: 0.62–0.77), respectively. The J-DRSP has moderate to good reliability and a certain level of validity. The 8-item J-DRSP (SF) has a two-factor structure and can be used effectively among Japanese women to assess their PMS symptoms.

中文翻译：

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日本版问题严重程度每日记录 (J-DRSP) 的信度和效度以及用于评估日本女性经前综合症症状的简短版本 (J-DRSP (SF)) 的开发

旨在评估日本版问题严重程度每日记录（J-DRSP，24 项）用于评估经前综合症 (PMS) 症状的有效性和可靠性，并开发 J-DRSP 的简短版本。使用“DRSP-JAPAN”智能手机应用程序，我们收集了从周期日−6（CD−6）到CD 10的每日J-DRSP记录，其中CD 1代表月经开始日期。检查了因子效度（探索性因素分析：EFA，验证性因素分析：CFA）和标准效度，并评估了重测信度（组内相关性：ICC）。J-DRSP 的简短版本是使用经典测试理论开发的。总共有 304 名女性参与，并在黄体期一周的至少 4 天（CD − 6 至 CD 0）和卵泡期一周的 4 天（CD 4 至 CD 10）记录了 243 条症状，其中 CD 0 设置为月经开始前一天。全民教育揭示了一个双因素结构。Kaiser-Meyer-Olkin 为 0.992，Bartlett 球形度卡方检验为 3653.89（P < 0.001）。然而，CFA 的模型拟合度并不理想（比较拟合指数 (CFI)：0.83，近似均方根误差 (RMSEA)：0.12）。CD 0 上的 J-DRSP 总分和每个子量表的总分高于 CD 10 上的 (p < 0.001)，表明某些标准的有效性。从 CD 0 到 CD − 1 以及 CD 9 到 CD 10 之间的 J-DRSP 总分的 ICC 值分别为 0.60 (95% CI: 0.48–0.72) 和 0.76 (95% CI: 0.69–0.82)。在考虑每个项目的因子负载后消除了一些原始项目，我们开发了一个 8 项目简式 J-DRSP (J-DRSP (SF))，包括 2 个因素（S-心理和 S-物理，每个 4 个项目） 。CFA 显示出更好的模型拟合度（CFI：0.99，RMSEA：0.048），黄体期和卵泡期的 ICC 值分别为 0.61（95%CI：0.51-0.68）和 0.70（95%CI：0.62-0.77）。J-DRSP具有中等至良好的信度和一定水平的效度。8 项 J-DRSP (SF) 具有双因素结构，可有效用于日本女性评估她们的经前综合症症状。