Table 8. Chronological changes of factors associated with pyogenic liver abscess, NHI database, Taiwan, 1996–2004*.
| Year (no. cases) | Abscess drainage, no. (%) | Biliary procedure, no. (%) | Renal disease, no. (%) | Diabetes mellitus, no. (%) | Hepatobiliary malignancy, no. (%) | Other malignancy, no. (%) | Pneumonia, no. (%) | Heart disease, no. (%) | Deaths, no. (%) |
|---|---|---|---|---|---|---|---|---|---|
| 1996 (2,400) | 589 (24.5) | 316 (13.2) | 123 (5.1) | 696 (29) | 149 (6.2) | 81 (3.4) | 132 (5.5) | 137 (5.7) | 296 (12.3) |
| 1997 (2,607) | 729 (28) | 389 (14.9) | 156 (6) | 819 (31.4) | 210 (8.1) | 106 (4.1) | 155 (5.9) | 154 (5.9) | 308 (11.8) |
| 1998 (1,831) | 932 (32.9) | 473 (16.7) | 161 (5.7) | 911 (32.2) | 276 (9.7) | 124 (4.4) | 168 (5.9) | 186 (6.6) | 340 (12) |
| 1999 (3,098) | 1,055 (34.1) | 480 (15.5) | 198 (6.4) | 1,005 (32.4) | 302 (9.7) | 137 (4.4) | 179 (5.8) | 194 (6.3) | 351 (11.3) |
| 2000 (3,394) | 1,190 (35.1) | 484 (14.3) | 258 (7.6) | 1,139 (33.6) | 292 (8.6) | 171 (5) | 193 (5.7) | 198 (5.8) | 348 (10.3) |
| 2001 (3,671) | 1,233 (33.6) | 515 (14) | 286 (7.8) | 1,241 (33.8) | 340 (9.3) | 203 (5.5) | 246 (6.7) | 254 (6.9) | 418 (11.4) |
| 2002 (3,891) | 1,355 (34.8) | 604 (15.5) | 279 (7.2) | 1,339 (34.4) | 372 (9.6) | 206 (5.3) | 290 (7.5) | 264 (6.8) | 410 (10.5) |
| 2003 (3,820) | 1,387 (36.3) | 519 (13.6) | 281 (7.4) | 1,411 (36.9) | 347 (9.1) | 195 (5.1) | 282 (7.4) | 290 (7.6) | 381 (10.0) |
| 2004 (3,991) |
1,498 (37.5) |
548
(13.7) |
221
(5.5) |
1,343 (33.7) |
344
(8.6) |
260
(6.5) |
303
(7.6) |
267
(6.7) |
388 (9.7) |
| Change per y, % | +1.38 | (–0.10) | +0.17 | +0.69 | +0.20 | +0.31 | +0.28 | +0.17 | (–0.31) |
| r | 0.88 | –0.23 | 0.46 | 0.86 | 0.49 | 0.93 | 0.90 | 0.75 | –0.91 |
| p value† | 0.002 | 0.547 | 0.208 | 0.003 | 0.179 | <0.001 | 0.001 | 0.020 | 0.001 |
*NHI, National Health Insurance; r, Pearson correlation coefficient. †p<0.05 is considered statistically significant.