Validation Studies of the Behavioral Risk Factor Surveillance System (BRFSS) physical activity questions

Yore et al. 2007

See reference #115

Methods

BRFSS PAQ (administered 3xs) moderate and vigorous PA categories compared to pedometer and Actigraph accelerometer (22 days), and a daily physical activity (PA) log kept for 1 week. (Pearson correlation)

Sample

30 men and 30 women, mean age 44.5±15.7 years

Summary Results

	PAlog	Actigraph	Pedo
BRFSS (min/wk)
Survey 1-Moderate	0.04	0.27	0.03
Survey 1-vigorous	0.66	0.52	0.30
Survey 2-Moderate	0.21	0.20	0.22
Survey 2-vigorous	0.68	0.54	0.27
Survey 3-Moderate	0.08	0.16	028
Survey 3-vigorous	0.60	0.63	0.41