Clinical application of ultrasound-guided surgical puncture and drainage in early treatment of pyogenic liver abscess

Table 3 Comparison of clinical outcomes between non-liquefied and liquefied abscesses, mean ± SD/n (%)

Patient	Non-liquefied group (n = 59)	Liquefied group (n = 84)	t/χ2 value	P value
Puncture success rate	58 (98.3)	84 (100)	1.434	0.924
Postoperative hospital stay (days)	3.9 ± 1.8	5.1 ± 2.7	-2.903	0.004
Time to fever resolution (days)	2.4 ± 1.1	4.9 ± 2.2	-7.935	0.000
Time for abscess reduction by more than 50% (days)	4.7 ± 1.5	8.6 ± 3.3	-8.445	0.000
Time for neutrophil count to return to normal (days)	1.5 ± 1.26	1.9 ± 1.85	0.478	0.633
Perioperative complications	2 (3.4)	6 (7.1)	0.924	0.470