Obstetrics, Gynecology, and Women's Health Institute, Cleveland Clinic, Cleveland, Ohio 44195, USA.
Neurourol Urodyn. 2011 Apr;30(4):541-6. doi: 10.1002/nau.20934. Epub 2011 Feb 22.
To evaluate validity and responsiveness of PFDI and PFIQ short forms across four multi-center studies and develop conversion formulas between short and long versions.
1,006 participants in four prospective studies of pelvic floor disorders completed long versions of the PFDI, PFIQ, and SF-36 (or SF-12) at baseline and 3 and 12 months after treatment. Responses were used to calculate scores for the short versions. We calculated correlations between scale versions using Pearson's correlation coefficient and compared their relative responsiveness using the standardized response mean.
PFDI and PFIQ short form scale scores demonstrated excellent correlations with long versions and similar responsiveness. Responsiveness was good to excellent for PFDI-20 urinary and prolapse scales, moderate for PFDI-20 colorectal scale and each of the PFIQ-7 scales, and poor for SF-36 (or SF-12) summary scores. Conversion formulas demonstrated excellent goodness of fit.
The long and short forms of the PFDI and PFIQ correlate well and have similar overall responsiveness in participants from four different prospective multicenter studies consisting of diverse patient populations with a broad range of pelvic floor disorders. The short forms provide a reliable and valid alternative in situations where reduced response burden is desired.
评估 PFDI 和 PFIQ 短式问卷在四项多中心研究中的有效性和反应度，并建立短式与长式之间的转换公式。
在四项盆腔器官脱垂疾病的前瞻性研究中，1006 名参与者在基线和治疗后 3 个月和 12 个月时完成了 PFDI、PFIQ 和 SF-36（或 SF-12）的长式问卷。根据这些应答，计算出短式问卷的分数。我们使用 Pearson 相关系数计算了量表版本之间的相关性，并使用标准化反应均数比较了它们的相对反应度。
PFDI 和 PFIQ 短式问卷的量表分数与长式问卷有极好的相关性，且反应度相似。PFDI-20 尿失禁和脱垂量表的反应度为良好至极好，PFDI-20 结直肠量表和 PFIQ-7 各量表的反应度为中等，SF-36（或 SF-12）总分的反应度为差。转换公式的拟合优度极好。
在四项不同的前瞻性多中心研究中，来自不同患者人群、患有多种不同盆腔器官脱垂疾病的参与者中，PFDI 和 PFIQ 的长式和短式问卷相关性良好，总体反应度相似。在需要减少应答负担的情况下，短式问卷提供了一种可靠有效的替代方法。
