Table 1—

Baseline characteristics and risk factors for diabetes according to self-reported sleep duration in 1986

Hours of sleep per day
≤56789+
Mean
 Age (years)52.852.251.952.352.6
 BMI (kg/m2)25.224.924.424.524.8
 Alcohol cconsumption (g/day)5.05.86.36.98.1
 Physical activity (METs/week)14.314.214.614.112.2
% of women
 History of hypercholesterolemia13.010.910.411.411.5
 History of hypertension27.523.821.122.525.9
 Current smoking23.523.720.619.622.6
 Family history of diabetes17.316.815.916.016.0
 Regular snoring10.09.68.29.311.5
 Night shift work >5 years*27.619.514.914.115.7
 Current postmenopausal hormone use16.621.223.422.722.4
  • *

    * Reported in 1988. METs = metabolic equivalent.