Trend of the prevalence of syphilis (VDRL/FTA-ABS positive) in Korean adults according to age
| No reactive/No tested (%) | Total (%) | |||
|---|---|---|---|---|
| Year | 20–29 | 30–39 | 40+ | Total (%) |
| *p Value determined by Cochrane-Armitage trend test. | ||||
| †p Value determined by χ2 test. | ||||
| 1977 | 156/7259 (2.2) | 42/1256 (3.3) | 44/1098 (4.0) | 242/9613 (2.5) |
| 1981 | 85/10267 (0.8) | 32/2191 (1.5) | 33/1384 (2.4) | 150/13 842 (1.1) |
| 1986 | 22/7102 (0.3) | 28/3617 (0.8) | 34/2497 (1.4) | 84/13 116 (0.6) |
| 1990 | 15/8477 (0.2) | 13/5682 (0.2) | 47/2983 (1.6) | 75/17 142 (0.4) |
| 1995 | 11/10 024 (0.1) | 9/2738 (0.3) | 8/664 (1.2) | 28/13 426 (0.2) |
| 2000 | 9/9065 (0.1) | 7/4807 (0.2) | 13/1530 (0.9) | 29/15 402 (0.2) |
| p Value for trend* | <0.0001 | <0.0001 | <0.0001 | <0.0001 |
| p Value between 1995 and 2000† | 0.8236 | 0.0965 | 0.4325 | 0.6992 |