Table 1.
Characteristics of the sample by gender
| Characteristics | Total (n = 736), n (%) | Women (n = 403), n (%) | Men (n = 333), n (%) | P value1 |
| Age2 | 0.93 | |||
| 18-35 yr | 157 (21.3) | 88 (21.8) | 69 (20.7) | |
| 36-50 yr | 186 (25.3) | 101 (25.1) | 85 (25.5) | |
| 51-65 yr | 200 (27.2) | 106 (26.3) | 94 (28.2) | |
| ≥ 66 yr | 193 (26.2) | 108 (26.8) | 85 (25.5) | |
| Education | 0.20 | |||
| < 11 yr | 115 (15.6) | 69 (17.1) | 46 (13.8) | |
| 11-13 yr | 286 (38.9) | 162 (40.2) | 124 (37.2) | |
| ≥ 14 yr | 335 (45.5) | 172 (42.7) | 163 (49.0) | |
| Native origin | 0.006b | |||
| Norwegian | 645 (87.6) | 341 (84.6) | 304 (91.3) | |
| Non-Norwegian | 91 (12.4) | 62 (15.4) | 29 (8.7) | |
| Place of residence | 0.21 | |||
| Village/town | 399 (54.2) | 227 (56.3) | 172 (51.7) | |
| Small or large city | 337 (45.8) | 176 (43.7) | 161 (48.3) | |
| VI severity | 0.05a | |||
| Moderate | 254 (34.5) | 155 (38.5) | 99 (29.7) | |
| Severe | 296 (40.2) | 152 (37.7) | 144 (43.2) | |
| Blindness | 186 (25.3) | 96 (23.8) | 90 (27.0) | |
| Age of VI onset | 0.24 | |||
| Congenital | 330 (44.8) | 118 (46.7) | 142 (42.6) | |
| Childhood/adolescence | 142 (19.3) | 69 (17.1) | 73 (21.9) | |
| Adulthood | 264 (35.9) | 146 (36.2) | 118 (35.4) | |
| Current VI status | 0.06 | |||
| Stable | 523 (74.5) | 275 (68.2) | 248 (74.5) | |
| Progressive | 213 (25.5) | 128 (31.8) | 85 (25.5) | |
| Other impairments | 0.46 | |||
| No | 478 (64.9) | 257 (63.8) | 221 (66.4) | |
| Yes | 258 (35.1) | 146 (36.2) | 112 (33.6) |
a
P < 0.05.
b
P < 0.01.
1
P-value derived from Pearson’s Chi-squared test.
2
The sample had a mean age of 51.4 years (SD: 17.2), 51.7 for women and 51.1 for men. VI: Visual impairment.