Predisposing Factors, Microbial Characteristics, and Clinical Outcome of Microbial Keratitis in a Tertiary Centre in Hong Kong: A 10-Year Experience

Table 3

Univariate logistic regression of risk factors, presenting features and isolates with the clinical outcome. Age, traumatic etiology, and ulcer size >3 mm predicted a poor clinical outcome.

Variables	value
Gender	0.447
Age	0.050
Contact lens use	0.889
Trauma	0.009
History of keratopathy or corneal surgery	0.123
Systemic immunocompromised state or mental illness with poor self-care	0.924
Initial response to antimicrobial therapy	0.503
Presence of hypopyon	0.990
Size of ulcer	0.044
Bacterial isolate	0.245

Size of ulcer: classified into large (>3 mm) and small (<3 mm).
Divided into 5 groups for analysis: no growth; Gram-positive cocci; Pseudomonas; other microbial agents; polymicrobial cases.