Predictive factors for early aspiration in liver abscess

Table 2 Clinical features of patients with liver abscess

Characteristics	Aspiration group (n = 426)	Non aspiration group (n = 540)	Odds ratio	95% CI	P value
Gender
Male	365 (85.7)	454 (84.1)	1.13	0.79-1.61	0.490
Female	61 (14.3)	86 (15.9)	1.00
Age
< 55 yr	282 (66.0)	412 (76.0)	1.00	1.2-2.2	0.001
≥ 55 yr	144 (34.0)a	128 (24.0)	1.60
Duration of symptoms1 (n%)
< 7 d	111(26.1)	195 (36.1)	1.00
≥ 7 d	315 (73.9)a	345 (63.9)	1.60	1.21-2.11	0.001
Jaundice (n%)
Yes	91 (21.4)a	80 (14.8)	1.55	1.18-2.17	0.009
No	335 (78.6)	459 (85.2)	1.00
Diabetes mellitus (n%)
Yes	70 (16.4)	99 (18.3)	0.87	0.62-1.22	0.440
No	356 (83.6)	441 (81.7)	1.00
Patient outcome (n%)
Alive	414 (97.2)	530 (98.1)	1.00	0.65-3.59	0.320
Died	12 (2.8)	10 (1.9)	1.53
Hospital stay (n%)
< 5 d	126 (29.6)	265 (49.1)	1.00
≥ 5 d	300 (70.4)a	275 (50.9)	2.29	1.75-2.99	0.001

Variable compared to reference category (OR = 1),

^aP < 0.05;

¹Fever or abdominal pain.