Incidence per 1000 patient-years of duodenal ulcers, gastric ulcers, and oesophagitis in the years 1994–1995 and 2002–2003.
| 1994–1995 | 2002–2003 | ||||
|---|---|---|---|---|---|
| Age group, yearsa | n | Incidence (95% CI) | n | Incidence (95% CI) | Incidence ratio (95% CI) |
| Duodenal ulcer | |||||
| 25–44 | 81 | 2.12 (1.68 to 2.63) | 26 | 0.70 (0.46 to 1.02) | 0.33b (0.21 to 0.52) |
| 45–64 | 86 | 3.19 (2.55 to 3.93) | 31 | 0.92 (0.62 to 1.30) | 0.29b (0.19 to 0.43) |
| 65–74 | 42 | 3.92 (2.82 to 5.29) | 33 | 2.49 (1.72 to 3.50) | 0.64 (0.40 to 1.00) |
| ≥75 | 36 | 5.14 (3.60 to 7.12) | 24 | 1.87 (1.20 to 2.78) | 0.36b (0.22 to 0.61) |
| Total (age-standardised) | 251 | 2.22 (1.94 to 2.50) | 119 | 0.85 (0.70 to 1.00) | 0.38b (0.31 to 0.48) |
| Gastric ulcer | |||||
| 25–44 | 54 | 1.41 (1.06 to 1.84) | 25 | 0.67 (0.43 to 0.99) | 0.48b (0.30 to 0.76) |
| 45–64 | 79 | 2.93 (2.32 to 3.65) | 54 | 1.60 (1.20 to 2.08) | 0.55b (0.39 to 0.77) |
| 65–74 | 36 | 3.36 (2.35 to 4.65) | 33 | 2.49 (1.72 to 3.50) | 0.74 (0.46 to 1.19) |
| ≥75 | 26 | 3.71 (2.43 to 5.44) | 30 | 2.34 (1.58 to 3.34) | 0.63 (0.37 to 1.07) |
| Total (age-standardised) | 197 | 1.75 (1.50 to 2.00) | 145 | 1.01 (0.84 to 1.18) | 0.58b (0.47 to 0.72) |
| Oesophagitis | |||||
| 25–44 | 262 | 6.84 (6.04 to 7.72) | 323 | 8.65 (7.73 to 9.64) | 1.26b (1.07 to 1.49) |
| 45–64 | 279 | 10.33 (9.16 to 11.62) | 386 | 11.40 (10.29 to 12.60) | 1.10 (0.95 to 1.29) |
| 65–74 | 121 | 11.28 (9.36 to 13.48) | 178 | 13.46 (11.55 to 15.59) | 1.19 (0.95 to 1.50) |
| ≥75 | 82 | 11.71 (9.31 to 14.53) | 148 | 11.53 (9.75 to 13.55) | 0.98 (0.75 to 1.29) |
| Total (age-standardised) | 829 | 7.20 (6.70 to 7.70) | 1177 | 8.73 (8.23 to 9.23) | 1.22b (1.11 to 1.33) |