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Table 3 Quantitative results from the studies included in the present systematic review, according to distribution-based methods.

From: The minimal important difference of patient-reported outcome measures related to female urinary incontinence: a systematic review

Analysis

PROM

Follow-up

Total score or domains

Power

MIDb

Effect sizea

Australian Pelvic Floor Questionnaire

6 weeks [49]

Bladder score

Authors did not specify if the effect size was small, medium or high

1.5

Global score

1.2

Incontinence Impact Questionnaire (IIQ)

Unclear [42]

Total score

0.2

-19.9

0.5

-49.7

International Consultation on Incontinence Questionnaire - Short Form (ICIQ-SF)

Unclear [46]

Total score

0.2

-0.82

0.5

-2.05

52 weeks (12 months) [48]

Total score

0.5

1.7

International Consultation on Incontinence Questionnaire -Lower Urinary Tract Symptoms Quality of Life (ICIQ-LUTSqol)

52 weeks (12 months) [48]

Total score

0.5

5.2

King’s Health Questionnaire (KHQ)

Unclear [47]

Total score

0.8

10

Michigan Incontinence Symptom Index (M-ISI)

Unclear [44]

Total score

0.2

4.53

Subscore: SUI

1.79

Subscore: UUI

2.04

Subscore: Pad use

1.19

Total score

0.5

3.02

Subscore: SUI

1.19

Subscore: UUI

1.36

Subscore: Pad use

0.79

Urogenital Distress Inventory (UDI)

12 weeks [41]

Total score

0.2

−8.1 (−8.8, −7.5)c

12 weeks [43]

-6

Unclear [42]

-9.9

Urogenital Distress Inventory (UDI)

12 weeks [41]

Total score

0.5

−20.5 (−18.8, 21.9)c

12 weeks [43]

-16

Unclear [42]

-24.8

UDI-Subscale

Unclear [42]

Irritative subscale

0.2

-4.4

0.5

-10.9

UDI-Subscale

12 weeks [41]

Stress subscale

0.2

−3.9 (−4.2, −3.6)c

0.5

−9.8 (−9.1, −10.6)c

Urinary Impact Questionnaire (UIQ)

12 weeks [41]

Total score

0.2

−11.5 (−12.4, 10.7)c

0.5

28.7 (−26.7, 31.1)c

12 weeks [43]

0.2

-17

0.5

-42

Overactive Bladder Questionnaire (OAB-q)

Unclear [42]

Total score

0.2

4.8

0.5

12.1

OAB-q: subscale

Unclear [42]

Symptom severity

0.2

-4.2

0.5

-10.4

Standardized response mean

Australian Pelvic Floor Questionnaire

6 weeks [49]

Bladder score

NA

1.4

Global score

1.3

Standard error of measurement

Incontinence Impact Questionnaire (IIQ)

Unclear [42]

Total score

NA

-18.2

Urogenital Distress Inventory (UDI)

12 weeks [41]

Total score

NA

−15.3 (−14.2, 16.4)c

12 weeks [43]

-11

Unclear [42]

-22.1

UDI-Subscale

12 weeks [41]

Irritative subscale

NA

−11.7 (−10.9, 12.6)c

Unclear [42]

-11.9

UDI-Subscale

12 weeks [41]

Stress subscale

NA

−13.1 (−12.3, −13.9) c

Urinary Impact Questionnaire (UIQ)

12 weeks [41]

Total score

NA

−11.7 (−10.9, 12.6) c

12 weeks [43]

-15

Overactive Bladder Questionnaire (OAB-q)

Unclear [42]

Total score

NA

4.3

OAB-q-Subscale

Unclear [42]

Symptom severity

 

-7.5

  1. MID Minimal important difference, NA Not applicable, SUI Stress urinary incontinence; PROM Patient-reported outcome measure; UUI Urgency urinary incontinence; - No quantitative estimate was provided
  2. athe effect size represents the standardized change of the score at the target instrument. It can be classified in small, medium, and large effect sizes considering 0.20, 0.50, and 0.80, respectively
  3. bvalues presented in this table are related to the MID reported in points, according to each specific PROM (questionnaire)
  4. cMID (95%CI)