Mental health impairment in underweight women: do body dissatisfaction and eating-disordered behavior play a role?

Table 2 Multiple linear regression analysis of the association between weight status (underweight, normal-weight) and each measure of mental health (SF-12 MCS, QOL-P and K-10) with and without the inclusion of additional covariates (demographic variables; physical health and physical activity) (n = 3,207)

		SF-12 MCS			QOL-P			K-10
Model	Covariates	B	p	R²	B	p	R²	B	p	R²
1	Weight statusⁱ	1.229	0.095	0.001	0.095	0.023	0.002	1.420	0.001	0.004
2	Weight status, demographic variablesⁱⁱ	0.330	0.677	0.028	0.057	0.205	0.023	0.896	0.039	0.043
3	Weight status, demographic variables, physical healthⁱⁱⁱ, physical activity	0.437	0.583	0.049	0.034	0.455	0.043	0.799	0.072	0.062

i Underweight = 0; normal-weight = 1.
ii Age, marital status parity, educational attainment, private health insurance.
iii As measured by the SF-12 PCS.

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