Rates and relative risk estimates of depression diagnosis, postnatal depression diagnosis and depression symptoms in the first year after delivery for 206 517 women who gave birth between 2000 and 2013
| Depression diagnosis | Postnatal depression diagnosis | Depression symptom | ||||
| Rate per 100 | Adjusted RR | Rate per 100 | Adjusted RR | Rate per 100 | Adjusted RR | |
| Age group | ||||||
| 15–19 | 6.6 (6.1 to 7.1) | 1.64 (1.50 to 1.81) | 7.6 (7.1 to 8.1) | 1.92 (1.76 to 2.10) | 10.6 (10.0 to 11.2) | 2.10 (1.95 to 2.27) |
| 20–24 | 6.1 (5.9 to 6.4) | 1.59 (1.47 to 1.71) | 5.8 (5.5 to 6.0) | 1.49 (1.39 to 1.59) | 8.1 (7.7 to 8.4) | 1.63 (1.54 to 1.73) |
| 25–29 | 4.5 (4.3 to 4.7) | 1.22 (1.15 to 1.30) | 4.6 (4.4 to 4.8) | 1.21 (1.14 to 1.29) | 5.5 (5.3 to 5.7) | 1.18 (1.12 to 1.24) |
| 30–34 | 3.6 (3.4 to 3.7) | 1 | 3.8 (3.6 to 3.9) | 1 | 4.4 (4.3 to 4.6) | 1 |
| 35–39 | 3.5 (3.3 to 3.7) | 1.00 (0.93 to 1.06) | 3.5 (3.3 to 3.6) | 0.92 (0.86 to 0.98) | 4.3 (4.1 to 4.4) | 0.97 (0.92 to 1.02) |
| 40–49 | 3.1 (2.8 to 3.5) | 0.92 (0.81 to 1.03) | 3.2 (2.8 to 3.5) | 0.86 (0.77 to 0.97) | 4.7 (4.3 to 5.1) | 1.06 (0.96 to 1.17) |
| Calendar period | ||||||
| 2000–2004 | 5.7 (5.5 to 5.9) | 1 | 5.8 (5.6 to 6.0) | 1 | 4.4 (4.2 to 4.6) | 1 |
| 2005–2009 | 4.2 (4.0 to 4.3) | 0.71 (0.66 to 0.77) | 4.4 (4.2 to 4.5) | 0.73 (0.69 to 0.78) | 6.0 (5.8 to 6.2) | 1.31 (1.21 to 1.42) |
| 2010–2013 | 3.5 (3.3 to 3.6) | 0.58 (0.53 to 0.63) | 3.4 (3.3 to 3.5) | 0.56 (0.52 to 0.60) | 5.6 (5.4 to 5.8) | 1.21 (1.11 to 1.32) |
| Townsend Deprivation Index quintile | ||||||
| 1 | 3.2 (3.0 to 3.3) | 1 | 3.7 (3.5 to 3.9) | 1 | 4.1 (3.9 to 4.2) | 1 |
| 2 | 3.6 (3.4 to 3.8) | 1.14 (1.05 to 1.22) | 4.1 (3.9 to 4.2) | 1.09 (1.01 to 1.17) | 4.5 (4.3 to 4.7) | 1.07 (1.00 to 1.15) |
| 3 | 4.1 (3.9 to 4.3) | 1.26 (1.16 to 1.36) | 4.3 (4.1 to 4.5) | 1.12 (1.04 to 1.21) | 5.3 (5.1 to 5.5) | 1.19 (1.10 to 1.28) |
| 4 | 5.1 (4.9 to 5.3) | 1.51 (1.38 to 1.64) | 4.8 (4.6 to 5.0) | 1.20 (1.11 to 1.30) | 6.6 (6.4 to 6.9) | 1.42 (1.31 to 1.53) |
| 5 | 6.0 (5.7 to 6.3) | 1.69 (1.53 to 1.87) | 5.3 (5.0 to 5.5) | 1.26 (1.13 to 1.39) | 7.7 (7.4 to 8.0) | 1.56 (1.42 to 1.72) |
Adjusted by age group, calendar period, and Townsend Deprivation Index.
RR, relative risk.