Subjective and objective levels of physical activity and their association with cardiorespiratory fitness in rheumatoid arthritis patients

Table 3 The mean, standard deviation, interquartile range for and Spearman’s correlations between the study variables

Variables	M	SD	IQR	(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
(1) GT3X sedentary (minutes per day)	583	98	142	-
(2) GT3X light PA (minutes per day)	275	79	123	-.78**	-
(3) GT3X moderate PA (minutes per day)	19	17	20	-.44**	.37**	-
(4) GT3X MVPA (minutes per day)	19	17	20	-.44**	.37**	1**	-
(5) Step counts	5378	2708	3716	-.64**	.59**	.78**	.78**	-
(6) IPAQ sitting (minutes per day)	290	159	255	.32*	-.37*	-.15	-.15	-.33**	-
(7) IPAQ walking (minutes per day)	616	653	57	-.18	.19	.30*	.29*	.21	-.24*	-
(8) IPAQ moderate PA (minutes per day)	85	275	103	-.22	.25*	.28*	.27*	.28*	-.25*	.42**	-
(9) IPAQ vigorous PA (minutes per day)	701	785	0	-.09	.08	.01	.01	.08	-.00	.16	.34**	-
(10) IPAQ MVPA (minutes per day)	510	731	122	-.24	.27*	.28*	.27*	.29*	-.24*	.43**	.98**	.45**	-
(11) VO2 max (ml/min/kg)	20.17	4.60	7.17	-.27*	.35**	.34**	.33*	.48**	-.02	.11	.25*	.19	.27**

IPAQ, International Physical Activity Questionnaire; IQR, interquartile range; M, mean; MVPA, moderate to vigorous physical activity; PA, physical activity; SD, standard deviation. *P <0.05, **P <0.01.

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