Table 1 Characteristics of study population
From: Catquest-9SF questionnaire: validation of Malay and Chinese-language versions using Rasch analysis
Malay version (n = 236) | Chinese version (n = 202) | |||
|---|---|---|---|---|
n | (%) | n | (%) | |
Age (years): | ||||
Mean (SD) | 63 (10.1) | 68 (9.0) | ||
Minimum, maximum | 21, 84 | 29, 86 | ||
Gender: | ||||
Male | 107 | (45.3) | 93 | (46.0) |
Female | 129 | (54.7) | 109 | (54.0) |
Race: | ||||
Malay | 179 | (75.8) | 0 | (0.0) |
Chinese | 2 | (0.8) | 202 | (100.0) |
Indian | 31 | (13.1) | 0 | (0.0) |
Others | 24 | (10.2) | 0 | (0.0) |
Education level: | ||||
No formal education | 49 | (20.8) | 51 | (25.2) |
Primary | 88 | (37.3) | 101 | (50.0) |
Secondary | 82 | (34.7) | 44 | (21.8) |
Higher education | 15 | (6.4) | 5 | (2.5) |
Best corrected visual acuity: | ||||
6/6–6/15 | 76 | (32.2) | 79 | (39.1) |
6/18–3/60 | 104 | (44.1) | 92 | (45.5) |
2/60 – NPL | 4 | (1.7) | 4 | (2.0) |
Ocular comorbiditya | 63 | (26.7) | 74 | (36.6) |
Systemic comorbidityb | 180 | (76.3) | 137 | (67.8) |
Answering questionnaire: | ||||
Self-administered | 77 | (32.6) | 62 | (30.7) |
Assistant administered | 157 | (66.5) | 139 | (68.8) |