Predictive factors for early aspiration in liver abscess

Table 4 Radiological features of patients with liver abscess (%)

Characteristics	Aspiration group (n = 426)	Non aspiration group (n = 540)	Odds ratio	95% CI	P value
No. of abscess
Single abscess	303 (71.1)	434 (80.4)	1.00
Multiple abscesses	123 (28.9)a	106 (19.6)	1.66	1.23-2.24	0.001
Site of lobe involvement
Right lobe	301 (70.7)	415 (76.9)	0.97	0.67-1.40
Left lobe	59 (13.8)	79 (14.6)	1.00	-	0.010
Both lobes	66 (15.5)a	46 (8.4)	1.92	1.15-3.18
Presence of gallstones
Yes	8 (1.9)a	11 (2.0)	0.92
No	418 (98.1)	529 (98.0)	1.00	0.36-2.30	0.860
Chest radiograph
Normal	235 (55.2)	334 (61.9)	1.00
Abnormal1	191 (44.8)a	206 (38.1)	1.31	1.01-1.70	0.030
Size of abscess
≤ 5 cm	121 (28.4)	209 (38.7)	1.00
> 5 cm	305 (71.6)a	331 (61.3)	1.59	1.21-2.09	0.001

¹Raised right hemi diaphragm, pleural effusion, and right lung base atelactasis. Variable compared to reference category (OR = 1),

^aP < 0.05.