Table 4.

Concurrent validity comparing the European Health Interview Survey Interview Physical Activity Questionnaire (EHIS-PAQ) with the International Physical Activity Questionnaire (IPAQ), 7-day Physical Activity Record (PAR), GT3X+ accelerometer, physical work capacity at 75 % maximum heart rate (PWC_75%), and grip strength

	EHIS-PAQ
	Work-related PA index (1 to 3)	Transportation-related PA index (MET-(min/d)	Walking time (min/d)	Cycling time (min/d)	Moderate-to-vigorous aerobic recreational activity (min/d)	Muscle-strengthening activity (times/week)	HEPA index (min/week)
	ρ	ρ	ρ	ρ	ρ	ρ	ρ
IPAQ (n = 123)
PA at work (min/d)	0.64**	−0.01	0.15	0.14	−0.01	0.19	−0.10
PA during transport (min/d)	0.05	0.62**	0.58**	0.46	0.23*	0.22*	0.63**
Leisure-time PA (min/d)	0.15	0.33*	0.23*	0.18	0.45**	0.01	0.58**
Household PA (min/d)	0.41**	0.04	0.23*	0.14	−0.08	0.10	−0.10
Total PA (min/d)	0.42**	0.31*	0.33*	0.27**	0.22*	−0.05	0.34*
7-day PAR (n = 122)
PA at work (min/d)	0.47**	−0.03	−0.22	−0.34**	−0.17	−0.13	0.09
PA during transport (min/d)	0.10	0.07	0.13	0.26*	0.12	0.03	0.21*
Leisure-time PA (min/d)	0.38*	0.39*	0.10	0.16	0.51**	0.08	0.64**
Household PA (min/d)	0.37**	−0.01	0.13	0.26*	−0.03	0.11	−0.21*
Total PA (min/d)	0.22*	−0.07	0.05	0.02	0.02	0.09	−0.17
GT3X+ accelerometer (n = 113)
Total activity (counts/min/d)	0.24*	0.43**	0.30*	0.15	0.36*	0.21*	0.43**
MVPA (min/d)	0.06	0.44**	0.31*	0.12	0.32*	−0.006	0.41**
Light activity (min/d)	0.43**	−0.08	−0.01	−0.14	−0.16	0.05	−0.23*
PWC75% (Watts/kg) (n = 75)	0.32**	0.01	0.11	0.16	0.25*	0.25*	0.48**
Grip strength (kg) (n = 140)	0.48**	0.12	–	0.15	0.14	0.10	0.14

PA physical activity, min/d minutes per day, MET metabolic equivalent. ρ Spearman’s rank order correlation coefficients, HEPA health-enhancing aerobic physical activity

*p-value <0.05. **p-value <0.05