Table 1. Socio-demographic and -economic characteristics of the study participants stratified by suspected cholangiocarcinoma (data presented as row percentage, except in the overall column).
| Variables | Overall (N = 3,400) | Suspected CCA | No suspected CCA |
Pearson χ2 | |||
|---|---|---|---|---|---|---|---|
| N (%) | N = 274 | (%) | N = 3,126 | (%) | |||
| Province | Champasack | 1,711 (50.3) | 127 | 7.4 | 1,584 | 92.6 | 1.88 |
| Savannakhet | 1,689 (49.7) | 147 | 8.7 | 1,542 | 91.3 | ||
| Gender | male | 1,368 (40.2) | 131 | 9.6 | 1,237 | 90.4 | 7.11** |
| female | 2,032 (59.8) | 143 | 7.0 | 1,889 | 93.0 | ||
| Age in years | mean age (±SD) | 50.02 (±10.73) | 52.1 (±10.7) | 49.8 (±10.7) | |||
| Age groups | 35–49 year | 1,784 (52.5) | 120 | 6.7 | 1,664 | 93.3 | -3.35*** |
| 50–59 year | 909 (26.7) | 79 | 8.7 | 830 | 91.3 | ||
| ≥ 60 year | 707 (20.8) | 75 | 10.6 | 632 | 89.4 | ||
| Ethnicity | Lao-Thai | 3,357 (98.8) | 272 | 8.1 | 3,085 | 91.9 | 0.58 |
| Mon-Khmer/Mong-Mein | 43 (1.3) | 2 | 4.7 | 41 | 95.4 | ||
| Education | illiterate | 591 (17.4) | 56 | 9.5 | 535 | 90.5 | 4.94 |
| up to primary school | 1,606 (47.2) | 137 | 8.5 | 1,469 | 91.5 | ||
| secondary school & above | 1,203 (35.4) | 81 | 6.7 | 1,112 | 93.3 | ||
| Profession | housewife/elderly/retired | 306 (9.0) | 27 | 8.8 | 279 | 91.2 | 3.83 |
| farmer/laborer/fisherman | 2,699 (79.4) | 225 | 8.3 | 2,474 | 91.7 | ||
| civil servant/trader | 395 (11.6) | 22 | 5.6 | 373 | 94.4 | ||
| SES | poor tertile | 1,079 (31.7) | 73 | 6.8 | 1,006 | 93.3 | 5.39 |
| middle tertile | 1,072 (31.5) | 84 | 7.8 | 988 | 92.2 | ||
| wealthy tertile | 1,249 (36.7) | 117 | 9.4 | 1,132 | 90.6 | ||
Note. CCA–cholangiocarcinoma; ±SD: ± standard deviation; SES–social-economic status. Pearson x2 compares the independence between suspected CCA prevalence and each sociodemographic and–economic variables. *p-value < 0.05, **p-value < 0.01, ***p-value < 0.001