Table 1 Demographic and clinical features of lung hydatid cyst and its distribution among different age groups in 224 cases from Southern Iran
From: Hospital-based retrospective analysis of 224 surgical cases of lung hydatid cyst from southern Iran
Variable | Frequency (%) | Age terms | P value | |||
|---|---|---|---|---|---|---|
Children (< 16) n = 63 | Young adult (17 – 30) n = 61 | Middle age adult (31- 45) n = 46 | Old adult (> 45) n = 53 | |||
Gender | Â | Â | Â | Â | Â | 0.724 |
Male | 134 (60.4) | 43 (68.3) | 33 (55) | 29 (63) | 28 (53.8) | Â |
Female | 88 (39.6) | 20 (31.7) | 27 (45) | 17 (37) | 24 (46.2) | Â |
Duration of hospital stay (days) | ||||||
Median [IQR] | 10 [9] | 9 [7] | 12 [11] | 10 [10] | 11 [8] | 0.199 |
< 6 | 33 (15) | 10 (16.1) | 8 (13.1) | 8 (18.2) | 7 (13.2) | 0.490 |
6–10 | 85 (38.6) | 26 (41.9) | 19 (31.1) | 19 (43.2) | 21 (39.6) |  |
11–15 | 44 (20) | 11 (17.7) | 13 (21.3) | 7 (15.9) | 13 (24.5) |  |
16–20 | 32 (14.5) | 8 (129) | 12 (19.7) | 5 (11.4) | 7 (13.2) |  |
21–30 | 21 (9.5) | 4 (6.5) | 7 (11.5) | 5 (11.4) | 5 (9.4) |  |
> 30 | 5 (2.3) | 3 (4.8) | 2 (3.3) | – | – |  |
Location of hydatid cyst in lung | ||||||
Right | 110 (53.9) | 27 (49.1) | 31 (54.4) | 26 (61.9) | 26 (52) | 0.561 |
Left | 88 (43.1) | 28 (50.9) | 22 (38.6) | 15 (35.7) | 23 (46) | Â |
Bilateral | 6 (2.9) | – | 4 (7) | 1 (2.4) | 1 (2) |  |
Number of cysts | ||||||
Median [IQR] | 1 [1] | 1 [0] | 1 [1] | 1 [1] | 1 [1] | 0.328 |
1 | 145 (75.9) | 42 (84) | 40 (71.4) | 29 (72.5) | 33 (75) | 0.374 |
2 | 34 (17.8) | 8 (16) | 9 (16.1) | 9 (22.5) | 8 (18.2) | Â |
≥ 3 | 12 (6.3) | – | 7 (12.5) | 2 (5) | 3 (6.8) |  |
Largest Size of cyst diameter (cm) | ||||||
Median [IQR] | 7 [5] | 7 [4] | 7 [5] | 6.5 [4] | 6 [4] | 0.660 |
≤ 5 | 57 (38.5) | 16 (37.2) | 20 (46.5) | 4 (9.3) | 3 (7) |  |
6–10 | 67 (45.3) | 12 (31.6) | 16 (42.1) | 8 (21.1) | 2 (5.3) |  |
11–15 | 19 (12.8) | 12 (37.5) | 17 (53.1) | 3 (9.4) | 0 (0) |  |
> 15 | 5 (3.4) | 17 (48.6) | 14 (40) | 4 (11.4) | 0 (0) |  |
Area of the cyst (cm2) | ||||||
Median [IQR] | 27.48 [35] | 27.48 [35] | 27.87 [64] | 28.26 [31] | 19.63 [30] | 0.731 |
< 26 | 68 (48.2) | 18 (42.9) | 17 (50) | 13 (43.3) | 20 (57.1) | 0.094 |
26–50 | 38 (27) | 14 (33.3) | 4 (11.8) | 11 (36.7) | 9 (25.7) |  |
51–75 | 8 (5.7) | 2 (4.8) | 3 (8.8) | 3 (10) | – |  |
76–100 | 16 (11.3) | 6 (14.3) | 4 (11.8) | 2 (6.7) | 4 (11.4) |  |
> 100 | 11 (7.8) | 2 (4.8) | 6 (17.6) | 1 (3.3) | 2 (5.7) |  |
Cyst features | ||||||
Ruptured | 19 (8.5) | 6 (9.5) | 5 (9.8) | 1 (2.2) | 6 (11.3) | 0.511 |
Calcified | 12 (5.4) | 3 (4.8) | 2 (3.3) | 4 (8.7) | 3 (5.7) | 0.279 |
Infected | 16 (7.1) | – | 3 (4.9) | 6 (13) | 4 (7.5) | 0.008 |
Isolated | 1 (0.4) | – | – | 1 (2.2) |  | 0.460 |
Multioculated | 3 (1.3) | – | – | 1 (2.2) | 2 (3.8) | 0.257 |
Fibrosis | 2 (0.9) | 1 (1.6) | 1 (1.6) | – | – | 1.000 |
With ectocyte | 1 (0.4) | – | – | 1 (2.2) | – | 0.201 |
Inflammation | 1 (0.4) | – | – | 1 (2.2) | – | 0.201 |
Necrosis | 2 (0.9) | – | 1 (1.6) | – | 1 (1.9) | 0.707 |
Coinfection | ||||||
Liver | 43 (19.2) | 17 (27) | 7 (11.5) | 6 (13) | 13 (24.5) | 0.011 |
Spleen | 2 (0.9) | – | 1 (1.6) | 1 (2.2) | – | 0.460 |
Heart | 1 (0.4) | – | – | 1 (2.2) | – | 0.575 |
Mediastinum | 1 (0.4) | – | – | – | 1 (1.9) | – |
Subdiaphragmatic area | 2 (0.9) | – | – | – | 2 (3.8) | 0.094 |
Common bile duct | 1 (0.4) | – | 1 (1.6) | – | – | – |
Pancreas | 1 (0.4) | – | – | – | 1 (1.9) | – |
Surgery method | ||||||
Lung resection | 86 (38.6) | 21 (33.3) | 25 (41) | 19 (41.3) | 21 (39.6) | 0.605 |
Lung preserving | 137 (61.4) | 42 (66.7) | 36 (59) | 27 (58.7) | 32 (60.4) | Â |