Table 2.
Lens thickness stratified by age and gender
| Age (years) | Men | Women | P value | ||||
|---|---|---|---|---|---|---|---|
| N (%) | Lens thickness (mm) | N (%) | Lens thickness (mm) | ||||
| Mean ± SD | 95% CI | Mean ± SD | 95% CI | ||||
| < 30a | 386 (3.7%) | 3.70 ± 0.39 | [3.66, 3.74] | 243 (1.8%) | 3.72 ± 0.45 | [3.66, 3.78] | 0.576 |
| 30–39a | 614 (5.8%) | 4.00 ± 0.42 | [3.97, 4.03] | 395 (2.9%) | 4.01 ± 0.46 | [3.97, 4.06] | 0.584 |
| 40–49a | 1241 (11.7%) | 4.26 ± 0.38 | [4.24, 4.29] | 910 (6.8%) | 4.30 ± 0.46 | [4.27, 4.33] | 0.152 |
| 50–59a | 2095 (19.8%) | 4.44 ± 0.40 | [4.42, 4.46] | 2510 (18.7%) | 4.42 ± 0.41 | [4.40, 4.43] | 0.091 |
| 60–69a | 3066 (29.0%) | 4.60 ± 0.41 | [4.58, 4.61] | 5047 (37.5%) | 4.55 ± 0.41 | [4.54, 4.56] | < 0.001 |
| 70–79a | 2264 (21.4%) | 4.67 ± 0.42 | [4.65, 4.69] | 3213 (23.9%) | 4.64 ± 0.42 | [4.63, 4.66] | 0.012 |
| ≥ 80a | 897 (8.5%) | 4.79 ± 0.41 | [4.76, 4.82] | 1132 (8.4%) | 4.76 ± 0.41 | [4.74, 4.79] | 0.105 |
| Totalb | 10,563 (100%) | 4.52 ± 0.47 | [4.51, 4.53] | 13,450 (100%) | 4.50 ± 0.46 | [4.49, 4.51] | < 0.001 |
SD standard deviation; CI confidence interval
a Mann-Whitney U test
b Analysis of covariance after adjusting for age