Figure 1From: Mental health impairment in underweight women: do body dissatisfaction and eating-disordered behavior play a role? Loess curve showing the association between body mass index (BMI) (kg/m 2 ) and mental health functioning, as measured by the Medical Outcomes Study Short Form Mental Component Summary Scale (SF-12 MCS), in the total sample (n = 4,892) (Note: lower scores on the SF-12 MCS indicate greater mental health impairment).Back to article page