Table 2.

Sensitivity, Specificity, and Predictive Value of the RAPA, BRFSS, and PACE Physical Activity Measures Compared With CHAMPS Physical Activity Level,^a  Strength, and Flexibility^b

Activity Measurec	Sensitivity, %	Specificity, %	Positive Predictive Value, %	Negative Predictive Value, %
RAPA	81	69	77	75
BRFSS	70	73	78	65
PACE	75	63	71	67
RAPA flexibility	85	62	87	58
RAPA strength	89	84	88	86

RAPA indicates Rapid Assessment of Physical Activity; BRFSS, Behavioral Risk Factor Surveillance System; PACE, Patient-centered Assessment and Counseling for Exercise; CHAMPS, Community Healthy Activities Model Program for Seniors.

^aDefined as total of 5 days per week or more and total of 3 or more hours per week of all moderate-intensity physical activities (metabolic equivalent values [METs] 3.0–4.9) or total of 3 days per week or more and total of 1 or more hours per week of all vigorous-intensity physical activities (METs ≥ 5.0).

^bStrength and flexibility assessed only in the CHAMPS and RAPA.

^cN = 115 for all comparisons except strength (n = 113).