Table 6
Estimates of the effect of each study factor on the odds of non-certification
| Study factor | Western Eye Hospital (n=129) | Moorfields Eye Hospital II (n=194) | |||||
|---|---|---|---|---|---|---|---|
| Crude OR (95% CI) | Adj OR (95% CI) | Crude OR (95% CI) | Adj OR (95% CI) | ||||
| Severity of VI: | |||||||
| Blind | 1 | 1 | 1 | 1 | |||
| P sight | 4.9 (2.2, 10.8) | 4.2 (1.9, 9.6) | 2.9 (1.5, 5.5) | 3.4 (1.7, 6.8) | |||
| Cert on field alone: | |||||||
| No | 1 | 1 | 1 | 1 | |||
| Yes | 1.3 (0.6, 3.0) | 1.7 (0.7, 4.3) | 4.2 (1.3, 13.0) | 3.6 (1.0, 12.7) | |||
| Sex: | |||||||
| Women | 1 | 1 | 1 | 1 | |||
| Men | 0.7 (0.3, 1.5) | 0.8 (0.3, 1.8) | 1.4 (0.8, 2.5) | 1.6 (0.8, 2.9) | |||
| Age (years): | |||||||
| ⩽64 | 1 | 1 | 1 | 1 | |||
| 65–74 | 1.2 (0.4, 3.5) | 1.2 (0.4, 3.8) | 2.1 (0.9, 4.5) | 1.6 (0.7, 3.7) | |||
| 75–84 | 1.5 (0.6, 4.2) | 1.4 (0.5, 4.3) | 2.8 (1.4, 5.6) | 2.4 (1.1, 5.2) | |||
| 85–94 | 1 (0.3, 2.9) | 0.8 (0.2, 2.7) | 3.1 (1.0, 9.1) | 4.1 (1.2, 13.2) | |||
| No of previous hospital visits: | |||||||
| ⩽3 | 1 | 1 | 1 | 1 | |||
| 4–10 | 0.8 (0.2, 2.5) | 0.9 (0.2, 3.4) | 0.5 (0.2, 1.2) | 0.4 (0.1, 1.2) | |||
| 11–40 | 0.9 (0.3, 3.3) | 1.2 (0.3, 4.8) | 0.4 (0.1, 0.9) | 0.2 (0.1, 0.7) | |||
| >40 | 0.3 (0.1, 1.1) | 0.4 (0.1, 1.6) | 0.2 (0.1, 0.4) | 0.1 (0.0, 0.3) | |||
| Main diagnosis: | |||||||
| I | 1 | 1 | 1 | 1 | |||
| II | 1.3 (0.6, 2.8) | 1.3 (0.6, 3.0) | 2.1 (1.1, 4.0) | 2.7 (1.4, 5.3) | |||
| III | 10.2 (2.2, 47.9) | 8.2 (1.7, 39.9) | 7.9 (2.2, 28.3) | 8.3 (2.2, 31.4) | |||
