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Table 4 Overview of instrument content validity

From: A review of patient-reported outcome measures to assess female infertility-related quality of life

Instrument name

Number of items

Acceptable respondent burden

Clarity of instructions

Clarity of item wording

Appropriate and balanced response options

Appropriate recall period

FertiQoL

36

✓

✓

✓

✓

X

FPI

46

✓

✓

X

X

X

FPS

14

✓

✓

✓

✓

X

ICQ-I

12

✓

n/av

X

X

n/av

IFQ

21

✓

✓

X

✓

X

  1. FertiQoL Fertility Quality of Life Questionnaire, FPI Fertility Problem Inventory, FPS Fertility Problem Stress, ICQ-I, Infertility Cognitions Questionnaire adapted for Infertility, IFQ Infertility Questionnaire, n/av not available