Journal of Cancer Prevention

eISSN 2288-3657
pISSN 2288-3649

Baseline characteristics according to gallstone and cholecystectomy

Characteristic Total No gallstone Gallstone P-valuea No cholecystectomy Cholecystectomy P-valuea
Total 704,437 (100.0) 687,270 (97.6) 17,167 (2.4) 687,270 (97.6%) 9,910 (1.4)
Follow-up (yr) 7.4 ± 3.6 7.3 ± 3.6 3.5 ± 2.5 < 0.01 7.5 ± 3.6 3.2 ± 2.2 < 0.01
Age (yr)b 41.7 ± 14.7 41.5 ± 14.7 48.5 ± 14.9 < 0.01 41.5 ± 14.7 47.1 ± 14.6 < 0.01
Sex 0.06 0.39
Male 345,775 (49.1) 337,227 (49.1) 8,548 (49.8) 337,227 (49.1) 4,906 (49.5)
Female 358,662 (50.9) 350,043 (50.9) 8,619 (50.2) 350,043 (50.9) 5,004 (50.5)
Comorbidity
Diabetes 71,440 (10.1) 68,064 (9.9) 3,376 (19.7) < 0.01 68,064 (9.9) 1,812 (18.3) < 0.01
Viral hepatitis 10,457 (1.5) 9,981 (1.5) 476 (2.8) < 0.01 9,981 (1.5) 250 (2.5) < 0.01
Cirrhosis 15,854 (2.3) 2,440 (0.4) 277 (1.6) < 0.01 2,440 (0.4) 87 (0.9) < 0.01
Fatty liver disease 23,637 (3.4) 22,440 (3.3) 1,197 (7.0) < 0.01 22,440 (3.3) 616 (6.2) < 0.01
Clonorchis sinensis 204 (0.0) 200 (0.0) 4 (0.0) 0.66 200 (0.0) 2 (0.0) 0.61

Values are presented as number (%) or mean ± SD. aThe chi-square test for categorical values and the t-test for continuous values. bAge at study entry.

J Cancer Prev 2020;25:164~172 https://doi.org/10.15430/JCP.2020.25.3.164
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