Table 2 The Poisson regression model with the year of the first visit as a continuous covariate
Parameter | PRR estimate | 95% CI | p-value |
|---|---|---|---|
Age | |||
 (-Inf,25] | 0.95 | 0.75, 1.19 | 0.7 |
 (25,35] | 1.00 | — |  |
 (35,45] | 1.11 | 0.97, 1.26 | 0.12 |
 (45,55] | 1.14 | 0.99, 1.31 | 0.069 |
 (55,65] | 1.13 | 0.98, 1.31 | 0.093 |
 (65, Inf] | 0.91 | 0.73, 1.11 | 0.3 |
Gender | |||
 Female | 1.75 | 1.59, 1.93 |  < 0.001 |
 Male | 1.00 | — |  |
 Year of first visit | 1.04 | 1.03, 1.05 |  < 0.001 |