Table 8

Significant predictors for positive culture with investigation of suspected microbial keratitis

CharacteristicsPositive cultureRisk ratio95% CIp Value
No%
Estimates of risk ratio with no adjustment for confounding factors
Ulcer size 5+ mm2 26/3574.32.681.80–3.99<0.001
Ulcer size <5 mm2 23/8327.7