Hospitalisation, mortality and case-fatality rates in patients with syphilis in Spain, by age group and gender (1997–2006)
| N | Hospitalisation rate (per 100 000) (95% CI) | Mortality rate (per 100 000) (95% CI) | Case-fatality rate (%) (95% CI) | Average length of stay(days) (SD) | |
| General analysis | 9556 | 2.33 (2.29 to 2.38) | 0.07 (0.07 to 0.08) | 3.17 (2.82 to 3.52) | 14.32 (19.382) |
| Gender | |||||
| Men | 5988 | 2.98 (2.90 to 3.05) | 0.11 (0.10 to 0.13) | 3.84 (3.35 to 4.33) | 15.90 (21.129) |
| Women | 3563 | 1.71 (1.65 to 1.77)* | 0.04 (0.03 to 0.04)* | 2.05 (1.58 to 2.51)* | 11.65 (15.662)* |
| Age (years) | |||||
| 0–4 | 481 | 2.63 (2.40 to 2.87) | 0.03 (0.01 to 0.06) | 1.25 (0.26 to 2.24) | 15.35 (17.230) |
| 5–9 | 55 | 0.28 (0.21 to 0.35) | 0 | 0 | 4.35 (4.562) |
| 10–14 | 83 | 0.38 (0.30 to 0.47) | 0.01 (−0.00 to 0.03) | 3.61 (−0.40 to 7.63) | 9.17 (13.025) |
| 15–19 | 174 | 0.68 (0.58 to 0.78) | 0.02 (0.00 to 0.04) | 3.45 (0.74 to 6.16) | 9.17 (16.958) |
| 20–24 | 396 | 1.23 (1.13 to 1.38) | 0.01 (0.00 to 0.02) | 1.01 (0.03 to 1.99) | 7.48 (9.961) |
| 25–29 | 629 | 1.81 (1.67 to 1.95) | 0.03 (0.01 to 0.05) | 1.91 (0.84 to 2.98) | 8.76 (11.464) |
| 30–34 | 880 | 2.56 (2.39 to 2.73) | 0.02 (0.00 to 0.03) | 0.68 (0.14 to 1.23) | 11.07 (13.253) |
| 35–39 | 909 | 2.77 (2.59 to 2.95) | 0.03 (0.01 to 0.05) | 1.21 (0.50 to 1.92) | 12.34 (17.866) |
| 40–44 | 826 | 2.76 (2.57 to 2.95) | 0.08 (0.05 to 0.11) | 2.91 (1.76 to 4.05) | 15.26 (16.674) |
| 45–49 | 736 | 2.77 (2.57 to 2.97) | 0.08 (0.05 to 0.12) | 2.99 (1.76 to 4.22) | 17.90 (37.925) |
| 50–54 | 699 | 2.88 (2.67 to 3.09) | 0.08 (0.05 to 0.12) | 2.86 (1.63 to 4.10) | 16.05 (15.359) |
| 55–59 | 675 | 3.10 (2.87 to 3.34) | 0.1 (0.06 to 0.14) | 3.11 (1.80 to 4.42) | 16.96 (17.836) |
| 60–64 | 590 | 2.98 (2.74 to 3.22) | 0.13 (0.08 to 0.18) | 4.41 (2.75 to 6.06) | 17.26 (24.346) |
| 65–69 | 597 | 2.99 (2.75 to 3.23) | 0.1 (0.05 to 0.14) | 3.18 (1.77 to 4.59) | 16.55 (15.360) |
| 70–74 | 614 | 3.38 (3.11 to 3.64) | 0.16 (0.10 to 0.22) | 4.72 (3.05 to 6.40) | 17.88 (22.855) |
| 75–79 | 608 | 4.33 (3.99 to 4.68) | 0.29 (0.20 to 0.38) | 6.74 (4.75 to 8.74) | 14.82 (14.268) |
| 80–84 | 405 | 4.47 (4.04 to 4.91) | 0.36 (0.24 to 0.49) | 8.14 (5.48 to 10.81) | 14.32 (14.453) |
| ≥85 | 199 | 2.73 (2.35 to 3.11)† | 0.27 (0.15 to 0.39)† | 10.05 (5.87 to 14.23)† | 15.74 (13.432)† |