Univariate analysis of clinical features occurring in fungal and bacterial keratitis
| Clinical feature | Frequency (% fungal) | Frequency (% bacterial) | χ2 | OR (CI) | p Value | Sens | Spec | PPV |
|---|---|---|---|---|---|---|---|---|
| PPV, positive predictive value. | ||||||||
| Serrated margins | 180/228 (79%) | 63/132 (48%) | 37.14 | 4.09 (2.57 to 6.56) | 0.00 | 0.79 | 0.52 | 0.74 |
| Raised slough | 135/228 (59%) | 52/132 (39%) | 13.50 | 2.23 (1.44 to 3.55) | 0.00 | 0.59 | 0.61 | 0.72 |
| Dry texture of slough | 101/228 (44%) | 37/132 (28%) | 9.36 | 2.04 (1.29 to 3.26) | 0.00 | 0.44 | 0.72 | 0.73 |
| Satellite lesions | 51/222 (23%) | 17/132 (13%) | 4.91 | 1.95 (1.08 to 3.61) | 0.04 | 0.22 | 0.87 | 0.75 |
| Hypopyon | 105/219 (48%) | 83/128 (65%) | 9.29 | 0.50 (0.32 to 0.78) | 0.00 | 0.48 | 0.35 | 0.56 |
| Fibrin | 21/210 (10%) | 28/125 (22%) | 9.65 | 0.38 (0.20 to 0.70) | 0.00 | 0.10 | 0.78 | 0.43 |
| Colour (not yellow) | 213/228 (93%) | 106/132 (80%) | 14.26 | 3.47 (1.77 to 6.98) | 0.00 | 0.93 | 0.20 | 0.67 |