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Spline regression analysis, Gastric bleeding ulcers
| Males | Females | |||
|---|---|---|---|---|
| Year | Coef. | 95% Conf. interval | Coef. | 95% Conf. interval |
| 1975 | -0.13 | -0.38 0.12 |
-0.14 | -0.42 0.15 |
| 1980 | 0.03 | -0.14 0.07 |
0.04 | -0.005 0.09 |
| 1985 | 0.01 | -0.02 0.53 |
0.04 | -0.005 0.08 |
| 1990 | 0.07 | 0.03 0.11 |
0.08 | 0.03 0.12 |
| 1995 | -0.07 | -0.10 -0.03 |
-0.07 | -0.11 -0.03 |
| 2000 | -0.12 | -0.14 -0.09 |
-0.11 | -0.14 -0.08 |
