Table 2.

Univariate logistic regression for baseline characteristics predicting organism

Characteristic	S. pneumoniae, OR (95 % CI)	P. aeruginosa, OR (95 % CI)	Nocardia spp., OR (95 % CI)	Staphylococcus spp., OR (95 % CI)	Moraxella spp., OR (95 % CI)
	P value	P value	P value	P value	P value
Infiltrate size	0.78 (0.70–0.87)	1.58 (1.39–1.80)	0.98 (0.83–1.16)	0.70 (0.53–0.91)	0.80 (0.54–1.15)
	P < 0.001	P < 0.001	P = 0.81	P = 0.009	P = 0.22
Dacryocystitis	7.28 (4.05–13.08)	0.12 (0.042–0.33)	0.21 (0.064–0.69)	0.36 (0.11–1.21)	N/a
	P < 0.001	P < 0.001	P = 0.009	P = 0.099
Duration of symptoms prior to presentation (by week)	0.65 (0.51–0.82)	0.59 (0.41–0.87)	1.38 (1.18–1.62)	1.22 (1.05–1.41)	0.83 (0.43–1.60)
	P < 0.001	P = 0.007	P < 0.001	P = 0.009	P = 0.57
Age (by decade)	1.48 (1.30–1.68)	0.69 (0.59–0.79)	0.90 (0.75–1.07)	0.83 (0.66–1.03)	0.67 (0.47–0.95)
	P < 0.001	P < 0.001	P = 0.24	P = 0.095	P = 0.025
Depth (0: 0–33 %; 1: > 33–100 %)	1.09 (0.76–1.56)	2.39 (1.51–3.77)	0.29 (0.16–0.54)	0.67 (0.33–1.33)	0.60 (0.20–1.76)
	P = 0.63	P < 0.001	P < 0.001	P = 0.25	P = 0.36
Location (0 = peripheral; 1 = non-peripheral)	1.09 (1.38–4.16)	1.92 (0.92–4.03)	0.48 (0.24–0.97)	0.16 (0.08–0.34)	0.54 (0.15–2.01)
	P = 0.002	P = 0.083	P = 0.04	P < 0.001	P = 0.36
Baseline visual acuity	1.26 (0.95–1.67)	1.66 (1.18–2.33)	0.39 (0.24–0.65)	0.45 0.25–0.81	0.70 (0.30–1.65)
	P = 0.10	P = 0.003	P < 0.001	P = 0.008	P = 0.41
Female gender	1.57 (1.10–2.26)	0.63 (0.41–0.97)	0.97 (0.55–1.71)	0.98 0.49–1.96	1.17 (0.41–3.40)
	P = 0.012	P = 0.036	P = 0.92	P = 0.96	P = 0.77
Contact lens wearer	N/a	25.6 (3.12–210.61)	N/a	N/a	5.13 (0.59–44.79)
		P = 0.003			P = 0.14
Presence of hypopyon	1.65 (1.16–2.36)	1.21 (0.79–1.85)	0.33 (0.17–0.62)	0.41 0.19–0.86	1.08 (0.37–3.12)
	P = 0.006	P = 0.38	P = 0.001	P = 0.02	P = 0.89
Agricultural work	2.67 (1.84–3.88)	0.48 (0.31–0.76)	1.20 (0.69–2.11)	0.43 (0.20–0.94)	0.097 (0.013–0.75)
	P < 0.001	P = 0.002	P = 0.52	P = 0.034	P = 0.03

Bold cells indicate comparisons that were significant after Bonferroni correction