Predisposing factors and surgical outcome of complicated liver hydatid cysts

Table 1 Patient and cyst characteristics of the three study groups

Characteristic	Group I (n = 28)	Group II (n = 93)	Group III (n = 251)	P
Age1 (yr)				0.001b
mean ± SD	36.32 ± 11.86	50.26 ± 13.88	45.62 ± 16.01
Median (range)	37.0 (17-76)	53.0 (23-76)	43.0 (18-79)
Sex				0.950
Male	15 (53)	51 (55)	141 (56)
Female	13 (47)	42 (45)	110 (44)
Previous hydatid disease surgery				0.204
No	24 (86)	74 (80)	219 (87)
Yes	4 (14)	19 (20)	32 (13)
Localization				0.109
Right lobe	17 (61)	54 (58)	178 (71)
Left lobe	5 (18)	25 (26)	48 (19)
Bilateral	6 (21)	14 (16)	25 (10)
No. of cysts1				0.284
1	22 (78)	61 (66)	193 (77)
2	4 (14)	17 (18)	39 (16)
3	1 (4)	7 (8)	16 (6)
4	1 (4)	5 (5)	3 (1)
5	-	3 (3)	-
Cyst diameter1 (cm)	9.5 (4-24)	10 (6-29)	7 (3-31)	0.001b
Position				0.017b
Superficial	24 (86)	52 (56)	155 (62)
Deep	4 (14)	41 (44)	96 (38)
Cyst infection				0.683
Negative	26 (93)	89 (95)	234 (93)
Positive	2 (7)	4 (5)	17 (7)

Values are mean ± SD, median (range), or n (%).

^bValues indicate a significant difference.

¹Kruskal-Wallis test.