Table 1.
Demographic and clinical characteristics of study participants
| Characteristic | Group; no. (%)* | ||
|---|---|---|---|
| Whole cohort, n = 40 | 1988–2002, n = 20 | 2003–2012, n = 20 | |
| Sex, male/female | 24 (60)/16 (40) | 10 (50)/10 (50) | 14 (70)/6 (30) |
| Age, median (IQR) yr | 40.5 (32.5–55.5) | 43 (31–57.5) | 39.5 (33.5–50.5) |
| Country of birth† | |||
| Canada‡ | 9 (23) | 4 (20) | 5 (25) |
| Algeria | 9 (23) | 3 (15) | 6 (30) |
| Lebanon | 5 (13) | 2 (10) | 3 (15) |
| Morocco | 4 (10) | 3 (15) | 1 (5) |
| Italy | 3 (8) | 3 (15) | 0 |
| Bulgaria | 2 (5) | 0 | 2 (10) |
| Greece | 2 (5) | 2 (10) | 0 |
| Other§ | 5 (13) | 3 (15) | 2 (10) |
| Presenting symptoms/signs | |||
| Abdominal pain | 28 (70) | 14 (70) | 14 (70) |
| No symptoms/incidental | 11 (28) | 5 (25) | 6 (30) |
| Nausea/vomiting | 6 (15) | 3 (15) | 3 (15) |
| Palpable mass | 3 (8) | 2 (10) | 1 (5) |
| Jaundice and/or fever | 3 (8) | 1 (5) | 2 (10) |
| Echinoccocal serology† | |||
| Positive | 25 (68) | 12 (60) | 13 (76) |
| Negative | 12 (32) | 8 (40) | 4 (24) |
| Imaging modalities | |||
| Ultrasonography | 35 (88) | 19 (95) | 16 (80) |
| CT, abdomen | 38 (95) | 20 (100) | 18 (90) |
| CT, chest | 6 (15) | 3 (15) | 3 (15) |
| MRI | 20 (50) | 7 (35) | 13 (65)¶ |
CT = computed tomography; IQR = interquartile range; MRI = magnetic resonance imaging.
*
Unless otherwise indicated.
†
Data missing for some patients.
‡
Four of the 9 Canadian patients were from the First Nations.
§
Afghanistan, Armenia, Romania, Spain, Turkey, each with n = 1.
¶
p = 0.06.