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Table 2 Response pattern and missing items for each item (n = 1164)

From: Psychometric properties of the Iranian interview-administered version of the World Health Organization's Quality of Life Questionnaire (WHOQOL-BREF): A population-based study

Items (item numbers) Missing (%) Mean score SD Floor (%) Ceiling (%)
Overall QoL (1) 0.2 3.4 0.86 3.0 6.9
Overall Health (2) 00 3.6 0.97 2.5 15.4
Pain (3) 00 3.9 1.2 4.6 45.3
Dependence of medical aids (4) 0.3 3.9 1.1 3.0 41.7
Positive feeling (5) 0.1 3.1 1.1 9.5 9.1
Personal belief (6) 0.3 3.4 1.1 6.4 14.9
Concentration (7) 0.3 3.3 0.99 4.0 10.5
Security (8) 0.3 3.4 1.1 5.8 14.2
Physical environment (9) 0.3 3.1 1.1 10.5 11.1
Energy (10) 0.1 3.4 0.88 1.9 6.6
Bodily image (11) 0.2 3.6 0.86 2.6 11.0
Financial support (12) 00 2.9 0.88 5.2 2.7
Accessibility of information (13) 0.7 3.1 0.85 2.4 3.1
Leisure activity (14) 0.3 2.4 1.00 22.3 1.8
Mobility (15) 0.3 3.5 0.92 2.3 9.8
Sleep and rest (16) 00 3.4 1.1 5.5 12.5
Activities of daily living (17) 0.3 3.5 0.86 1.9 7.1
Work capacity (18) 0.5 3.4 0.91 2.3 7.7
Self-esteem (19) 0.2 3.5 0.95 2.7 14.6
Personal relationship (20) 0.1 3.7 0.83 1.00 13.7
Sexual activity (21) 2/5 3.5 0.85 2.7 6.4
Social support (22) 00 3.2 1.00 6.7 8.8
Home environment (23) 0.3 3.3 1.00 5.8 9.7
Health care (24) 0.3 3.3 1.00 7.3 7.2
Transport (25) 0.1 3.2 1.00 8.1 5.2
Negative feeling (26) 0.1 3.2 1.2 8.2 19.2