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Table 1 Results from the analyses for reliability (test–retest and internal consistency), for each instrument and subscale

From: Validation of the short forms of the Pelvic Floor Distress Inventory (PFDI-20), Pelvic Floor Impact Questionnaire (PFIQ-7), and Pelvic Organ Prolapse/Urinary Incontinence Sexual Questionnaire (PISQ-12) in Finnish

Questionnaire Test Retest ICC (95% CI) P
n (missing values) Mean (SD), median (IQR) Cronbach’s α (a) n (missing values) Mean (SD), median (IQR) Cronbach’s α (a)
PFIQ-7 63 (11) 14.97 (14.42)
9 (4–22)
0.96 (0.96) 63 (9) 13.97 (15.07)
7 (4–21)
0.94 (0.93) 0.75 (0.62–0.84) <0.001
UIQ-7 63 (5) 6.03 (5.77)
5 (1–9)
0.92 (0.92) 63 (6) 5.49 (5.67)
4 (1–9)
0.93 (0.93)) 0.82 (0.72–0.88) <0.001
CRAIQ-7 63 (9) 3.83 (4.83)
2 (0–7)
0.91 (0.91) 63 (7) 3.98 (5.93)
1 (0–6)
0.77 (0.77) 0.67 (0.51–0.79) <0.001
POPIQ-7 63 (5) 5.11 (5.23)
3 (1–8)
0.92 (0.92) 63 (8) 4.89 (5.44)
3 (0–7)
0.93 (0.93) 0.72 (0.57–0.82) <0.001
PFDI-20 63 (3) 105.46 (55.62)
93.75 (70.83–146.88)
0.88 (0.88) 63 (0) 105.52 (58.07)
92.71 (66.67–158.33)
0.89 (0.89) 0.92 (0.88–0.95) <0.001
POPDI-6 63 (2) 40.15 (21.25)
37.50 (25.00–50.00)
0.73 (0.74) 63 (0) 42.86 (23.44)
37.50 (25.00–62.50)
0.78 (0.78) 0.83 (0.73–0.89) <0.001
CRADI-8 63 (1) 29.07 (21.78)
25.00 (9.38–46.88)
0.80 (0.80) 63 (0) 28.47 (22.29)
25.00 (9.38–40.63)
0.83 (0.83) 0.90 (0.84–0.94) <0.001
UDI-6 63 (0) 34.19 (21.78)
35.00 (29.00–40.00)
0.71 (0.71) 63 (0) 34.19 (21.78)
33.33 (16.67–50.00)
0.69 (0.69) 0.89 (0.83–0.93) <0.001
PISQ-12 27 (2) 34.89 (6.32)
35 (29–40)
0.84 (0.84) 27 (3) 31.85 (6.39)
33.00 (26.00–37.00)
0.82 (0.84) 0.87 (0.73–0.94) <0.001
  1. aComputed only for those with complete answers on all questions of the subscale