Body image mediates the depressive effects of weight gain in new mothers, particularly for women already obese: evidence from the Norwegian Mother and Child Cohort Study

Table 2 Summary statistics for the time period between the 18^th month postpartum (time 1) and the 36^th month postpartum (time 2)

	Normal weight (18.5 < BMI ≤ 25)				Overweight (25 < BMI ≤ 30)				Obese (30 < BMI)
	Mean	S.D.	Min.	Max.	Mean	S.D.	Min.	Max.	Mean	S.D.	Min.	Max.
Transition to mild or more severe depressive symptoms (1/0)
between time 1 and 2	0.06	0.25	0	1	0.06	0.24	0	1	0.07	0.26	0	1
Time-variant variables at Time 2
BMI change	0.11	0.57	-3.98	6.94	0.07	0.65	-3.30	3.67	0.08	0.80	-4.35	3.64
Body image concern	1.25	1.11	0	3	1.78	0.97	0	3	1.91	0.89	0	3
Partner	20.35	4.22	0	25	20.28	4.27	0	25	20.08	4.31	1	25
Talk rarely	0.01	0.09	0	1	0.01	0.10	0	1	0.01	0.10	0	1
Talk occasionally	0.23	0.42	0	1	0.22	0.42	0	1	0.20	0.40	0	1
Talk often	0.77	0.42	0	1	0.77	0.42	0	1	0.79	0.41	0	1
Stress	0.43	0.50	0	1	0.50	0.50	0	1	0.54	0.50	0	1
Exercise	1.44	0.97	0	5	1.49	0.97	0	5	1.45	1.01	0	5
Time-invariant variables at Time 0
Health	0.93	1.12	0	10	1.03	1.19	0	8	1.17	1.28	0	8
Higher education	0.74	0.44	0	1	0.67	0.47	0	1	0.57	0.50	0	1
Low income	0.07	0.26	0	1	0.07	0.26	0	1	0.10	0.30	0	1
Mid income	0.75	0.43	0	1	0.80	0.40	0	1	0.81	0.39	0	1
High income	0.17	0.38	0	1	0.12	0.33	0	1	0.09	0.28	0	1
Foreign-born	0.09	0.29	0	1	0.07	0.26	0	1	0.07	0.25	0	1
In the 20s	0.37	0.48	0	1	0.36	0.48	0	1	0.37	0.48	0	1
In the 30s	0.61	0.49	0	1	0.61	0.49	0	1	0.61	0.49	0	1
In the 40s	0.02	0.14	0	1	0.03	0.16	0	1	0.03	0.16	0	1
Twins or triplets	0.02	0.13	0	1	0.02	0.14	0	1	0.02	0.14	0	1
Age	30.95	4.14	18	47	31.09	4.32	18	47	30.96	4.33	18	46
N	14,961				4839				1925

ISSN: 1471-2458