Table 1

Unadjusted associations between participant characteristics and incidence of case level depressive symptoms (ie, restricted to non-cases at baseline) N=354

	N	Depression incidence % (n)	ORs (CIs)	χ² (df), p Value
Age				0.14 (1), p=0.71
18–22	91	15.4 (14)	Reference
23–25	77	13.0 (10)	0.82 (0.34 to 1.97)
26–29	102	9.8 (10)	0.60 (0.25 to 1.42)
30–44	84	19.0 (16)	1.29 (0.59 to 2.85)
Number of children				1.56 (1), p=0.21
0	182	13.2 (24)	Reference
1	129	10.9 (14)	0.80 (0.40 to 1.62)
≥2	52	23.1 (12)	1.98 (0.91 to 4.29)
Reported health of the baby				0.72 (1), p=0.40
Very good	159	16.4 (26)	Reference
Good	189	11.1 (21)	0.64 (0.35 to 1.19)
Average, bad, very bad	15	20.0 (3)	1.28 (0.34 to 4.85)
Education duration (year)				2.40 (1), p=0.12
≤5	121	17.4 (21)	Reference
6–8	74	14.9 (11)	0.83 (0.38 to 1.84)
9–11	118	11.9 (14)	0.64 (0.31 to 1.33)
12≥	43	9.3 (4)	0.49 (0.16 to 1.51)
Family income (TRY)				7.21 (1), p=0.01*
≤630	83	21.7 (18)	Reference
631–900	91	15.4 (14)	0.66 (0.30 to 1.42)
901–1400	121	9.9 (12)	0.40 (0.18 to 0.88)
1401–23 000	51	7.8 (4)	0.31 (0.09 to 0.97)
Physical health				2.55 (1), p=0.11
Very good	62	8.1 (5)	Reference
Good	245	14.3 (35)	1.90 (0.71 to 5.07)
Average/bad/very bad	55	18.2 (10)	2.53 (0.81 to 7.94)
Number of life events/stressors				5.71 (1), p=0.022*
0	180	10.0 (18)	Reference
1	91	20.9 (19)	2.38 (1.17 to 4.79)
2	39	20.5 (8)	2.32 (0.93 to 5.81)
3+	18	22.2 (4)	2.57 (0.76 to 8.65)

Emotional problems in the past				2.05 (1), p=0.15
No	226	12.4 (28)	Reference
Yes	122	18.0 (22)	1.56 (0.85 to 2.85)
Family structure				1.91 (1), p=0.18
Nuclear	245	15.5 (38)	Reference
Traditional	118	10.3 (12)	0.62 (0.31 to 1.23)