Table 2.
Non-depression |
Depression |
||||||||
---|---|---|---|---|---|---|---|---|---|
Variable | N | Event | Person-years | Incidencea | N | Event | Person-years | Incidencea | IRRb [95% confidence interval (CI)] |
All | 138,187 | 1504 | 1146,960 | 1.31 | 34,765 | 435 | 285,537 | 1.52 | 1.16 (1.12,1.21) |
Sex | |||||||||
Female | 52,072 | 569 | 727,530 | 0.78 | 13,105 | 171 | 181,913 | 0.94 | 1.20 (1.14, 1.26) |
Male | 86,115 | 935 | 419,431 | 2.23 | 21,660 | 264 | 103,625 | 2.55 | 1.14 (1.08, 1.21) |
Age group (years) | |||||||||
20–39 | 49,893 | 150 | 433,734 | 0.35 | 12,453 | 63 | 107,501 | 0.59 | 1.69 (1.59, 1.81) |
40–64 | 62,652 | 528 | 531,375 | 0.99 | 15,834 | 151 | 132,729 | 1.14 | 1.14 (1.08, 1.21) |
65–84 | 25,642 | 826 | 181,851 | 4.54 | 6,478 | 221 | 45,307 | 4.88 | 1.07 (0.99, 1.16) |
aIncidence: per 1,000 person-years.
bIRR (incidence rate ratio): depression vs. non-depression (95% CI).