Table 1.

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.