PCS and MCS norm-based scores according to socio-demographic and lifestyle characteristics (n = 4,683).

<p>Note: PCS = physical component score; MCS = mental component score; SF-36 scores range from zero (worst health) to 100 (best health) and are scaled relative to those of the United States population; p values for trend in variables with more than 2 categories;</p>*<p>Body mass index (BMI): Underweight: <18.5 kg/m²; Normal: 18.5–24.9 kg/m²; Overweight: 25–29.9 kg/m²; Obesity: ≥30 kg/m². SE = standard error.