Table 1. Demographic data from National Health Insurance database, Taiwan, 1996–2004.
| Item | Female | Male | Total | p value* |
|---|---|---|---|---|
| Sex, no. (%) | 11,377 (38.3) | 18,326 (61.7) | 29,703 (100) | |
| Age: range (median), y | 0–106 (63.90) | 0–101 (58.98) | 0–106 (61.00) | <0.001† |
| Age: mean (SD), y | 62.13 (14.87) | 57.58 (16.03) | 59.32 (15.75) | <0.001‡ |
| Hospitalization: mean (SD), d |
18.00 (13.80) |
16.91 (12.74) |
17.33 (13.17) |
<0.001‡ |
| Diabetes mellitus, no. (%) | 3,998 (35.1) | 5,906 (32.2) | 9,904 (33.3) | <0.001§ |
| Cirrhosis, no. (%) | 854 (7.5) | 2,225 (12.1) | 3,079 (10.4) | <0.001§ |
| Renal disease, no. (%) | 772 (6.8) | 1,191 (6.5) | 1,963 (6.6) | 0.334§ |
| Hypertension, no. (%) | 1,491 (13.1) | 1,866 (10.2) | 3,357 (11.3) | <0.001§ |
| Heart disease, no. (%) | 826 (7.3) | 1,118 (6.1) | 1,944 (6.5) | <0.001§ |
| Cerebrovascular accident, no. (%) | 364 (3.2) | 454 (2.5) | 818 (2.8) | <0.001§ |
| Cholelithiasis, no. (%) | 2,121 (18.6) | 2,229 (12.2) | 4,350 (14.6) | <0.001§ |
| Hepatobiliary malignancy, no. (%) | 863 (7.6) | 1,769 (9.7) | 2,632 (8.9) | <0.001§ |
| Other malignancy, no. (%) | 546 (4.8) | 937 (5.1) | 1,483 (5.0) | 0.227§ |
| Pneumonia, no. (%) | 675 (5.9) | 1,273 (6.9) | 1,948 (6.6) | 0.001§ |
| Urinary tract infection, no. (%) | 923 (8.1) | 697 (3.8) | 1,620 (5.5) | <0.001§ |
| Acute viral hepatitis, no. (%) | 228 (2.0) | 657 (3.6) | 885 (3.0) | <0.001§ |
| Peptic ulcer, no. (%) | 985 (8.7) | 1,623 (8.9) | 2,608 (8.8) | 0.557§ |
| Abscess drainage no. (%) | 3,886 (34.2) | 6,082 (33.2) | 9,968 (33.6) | 0.082§ |
| Biliary procedure no. (%) | 1,967 (17.3) | 2,361 (12.9) | 4,328 (14.6) | <0.001§ |
| Deaths, no. (%) | 1,286 (11.3) | 1,954 (10.7) | 3,240 (10.9) | 0.085§ |
*p<0.05 is considered statistically significant. †Mann-Whitney U test. ‡Student t test. §χ2 test.