Table 1. Baseline characteristics of adults without depression according to the number of occasions inflamed over the observation period (n=2068).
| Inflamed on zero occasions (n=1200) | Inflamed on one occasion (n=461) | Inflamed on two occasions (n=407) | |
|---|---|---|---|
| Baseline characteristics (2008/09) | |||
| Age—mean (s.d.) | 66.7 (7.6) | 68.6 (8.3)a | 67.5 (7.9) |
| Female | 612 (51.0) | 236 (51.2) | 242 (59.5)a |
| Lowest wealth quintile | 115 (9.6) | 73 (15.8)a | 70 (17.2)a |
| Uses antidepressant medication | 68 (5.7) | 28 (6.1) | 41 (10.1)a |
| Body mass index—mean (s.d.) | 26.7 (3.9) | 28.5 (4.6)a | 31.1 (5.7)a |
| Reported type 2 diabetes | 14 (1.2) | 4 (0.9) | 5 (1.2) |
| Reported cardiovascular disease | 19 (1.6) | 15 (3.3)a | 7 (1.7) |
| Reported cancer | 38 (3.2) | 23 (5.0) | 14 (3.4) |
| Reported osteoarthritis | 270 (22.5) | 110 (23.9) | 118 (29.0)a |
| Reported rheumatoid arthritis | 52 (4.3) | 21 (4.6) | 34 (8.4)a |
| Reported chronic lung disease | 27 (2.3) | 18 (3.9) | 26 (6.4)a |
| Reported asthma | 94 (7.8) | 54 (11.7)a | 58 (14.3)a |
| Disabled based on activity limitations | 176 (14.7) | 93 (20.2)a | 105 (25.8)a |
| Cognitively impaired | 135 (11.3) | 78 (16.9)a | 72 (17.7)a |
| Currently smokes | 92 (7.7) | 43 (9.3) | 58 (14.3)a |
| Low physical activity | 111 (9.3) | 79 (17.1)a | 83 (20.4)a |
| New depressive symptoms after 4 yearsb | 62 (5.2) | 27 (5.9) | 42 (10.3)a |
Data are n (%) unless otherwise noted.
a
Indicates significantly different from the ‘inflamed on zero occasions’ group (P<0.05) based on linear or logistic regression.
b
Measured at follow-up (2012/13).