Table 4.
Univariable and multivariable logistic regression analyses of risk factors for astigmatism ≤-1.5 D (N = 6465)
| Characteristics | Astigmatism ≤-1.5 D | Univariable logistic regression analysis | Multivariable logistic regression analysis | ||
|---|---|---|---|---|---|
| OR (95%CI) | P-Value | OR (95%CI) | P-Value | ||
| Age (year) | < 0.001 | < 0.001 | |||
| 7 | 526 (7.8) | Reference | Reference | ||
| 8 | 610 (8.0) | 1.031 (0.913–1.165) | 0.619 | 1.119 (0.988–1.268) | 0.076 |
| 9 | 563 (7.3) | 0.938 (0.829–1.061) | 0.31 | 0.959 (0.844–1.089) | 0.52 |
| 10 | 592 (7.7) | 0.995 (0.880–1.124) | 0.935 | 0.943 (0.830–1.070) | 0.362 |
| 11 | 669 (8.0) | 1.030 (0.915–1.160) | 0.623 | 0.883 (0.779–1.001) | 0.052 |
| 12 | 699 (9.0) | 1.170 (1.040–1.317) | 0.009 | 0.958 (0.845–1.086) | 0.505 |
| 13 | 597 (10.0) | 1.318 (1.166–1.490) | < 0.001 | 1.061 (0.930–1.210) | 0.38 |
| 14 | 568 (10.5) | 1.388 (1.226–1.572) | < 0.001 | 1.013 (0.885–1.160) | 0.846 |
| 15 | 564 (12.3) | 1.668 (1.471–1.890) | < 0.001 | 1.169 (1.020–1.341) | 0.025 |
| 16 | 388 (11.6) | 1.555 (1.355–1.786) | < 0.001 | 1.212 (1.042–1.409) | 0.012 |
| 17 | 390 (11.7) | 1.567 (1.365–1.799) | < 0.001 | 1.172 (1.007–1.364) | 0.04 |
| 18 | 237 (9.6) | 1.260 (1.073–1.480) | 0.005 | 1.096 (0.921–1.305) | 0.302 |
| 19 | 62 (7.1) | 0.901 (0.685–1.183) | 0.453 | 0.920 (0.687–1.232) | 0.575 |
| Gender | < 0.001 | ||||
| Female | 2819 (8.0) | Reference | Reference | ||
| Male | 3646 (10.0) | 1.272 (1.208–1.339) | < 0.001 | 1.314 (1.246–1.386) | < 0.001 |
| Nationality | < 0.001 | ||||
| Han | 4846 (10.8) | 2.538 (2.323–2.773) | < 0.001 | 1.915 (1.741–2.106) | < 0.001 |
| Uyghur | 579 (4.5) | Reference | Reference | ||
| Kazakhs | 102 (6.8) | 1.541 (1.239–1.915) | < 0.001 | 1.489 (1.193–1.859) | < 0.001 |
| Hui | 462 (8.7) | 2.010 (1.771–2.282) | < 0.001 | 1.634 (1.431–1.865) | < 0.001 |
| Kyrgyz | 306 (5.8) | 1.295 (1.123–1.494) | < 0.001 | 1.238 (1.071–1.431) | 0.004 |
| Others | 170 (8.6) | 1.972 (1.651–2.356) | < 0.001 | 1.672 (1.392–2.007) | < 0.001 |
| Spherical equivalent (right eye) | < 0.001 | < 0.001 | |||
| SE≤-6.00 D | 505 (50.0) | 19.385 (16.985–22.125) | < 0.001 | 16.027 (13.931–18.437) | < 0.001 |
| -6.00 D < SE≤-3.00 D | 1409 (17.7) | 4.174 (3.874–4.497) | < 0.001 | 3.511 (3.224–3.822) | < 0.001 |
| -3.00 D < SE<-0.50 D | 2139 (9.1) | 1.938 (1.816–2.068) | < 0.001 | 1.753 (1.635–1.879) | < 0.001 |
| -0.50 D ≤ SE ≤ + 0.50 D | 1787 (4.9) | Reference | Reference | ||
| SE > + 0.50 D | 625 (21.5) | 5.295 (4.789–5.855) | < 0.001 | 5.365 (4.844–5.942) | < 0.001 |