BMC Public Health

Table 5 Correlations between physical activity estimates from the Baecke questionnaire and IPAQ-SF for rural and urban participants

From: Measurement of physical activity in urban and rural South African adults: a comparison of two self-report methods

Variable	Rural participants (n = 530)			Urban participants (380)
Variable	R	ICC	95 % CI	R	ICC	95 % CI
Baecke vs IPAQ total PA
Work index	0.59**	0.67	0.61, 0.72	0.40**	0.49	0.38, 0.59
Walking index	0.27**	0.40	0.29, 0.49	0.24**	0.38	0.25, 0.49
Leisure index	0.15**	0.16	−0.01, 0.28	0.12*	0.15	−0.04, 0.31
Sport index	0.07	0.03	−0.05, 0.12	0.14**	0.11	0.01, 0.21
Total PA index	0.61**	0.45	0.35, 0.54	0.44**	0.39	0.26, 0.50
Baecke vs IPAQ MVPA
Work index	0.61**	0.48	0.39, 0.56	0.57**	0.40	0.26, 0.51
Walking index	0.21**	0.24	0.10, 0.36	0.19**	0.22	0.05, 0.37
Leisure index	0.14**	0.08	−0.09, 0.23	0.13**	0.08	−0.13, 0.25
Sport index	0.08	0.04	−0.14, 0.19	0.13**	0.11	−0.09, 0.27
Total PA index	0.61**	0.37	0.24, 0.49	0.57**	0.36	0.19, 0.48
Baecke vs IPAQ walking
Work index	0.45**	0.51	0.42, 0.59	0.21**	0.29	0.13, 0.42
Walking index	0.18**	0.28	0.14, 0.39	0.21**	0.34	0.19, 0.46
Leisure index	0.05	0.08	−0.09, 0.22	0.11*	0.10	−0.11, 0.26
Sport index	0.08	0.04	−0.14, 0.19	0.08	0.16	−0.03, 0.31
Total PA index	0.44**	0.32	0.19, 0.42	0.28	0.25	0.09, 0.39
Baecke vs IPAQ sedentary
Work index	−0.44**	−0.53	−0.59, −0.46	−0.42**	−0.47	−0.55, −0.39
Walking index	−0.30**	−0.24	−0.32, −0.16	−0.25**	−0.20	−0.29, −0.10
Leisure index	−0.15**	−0.15	−0.24, −0.05	−0.25**	−0.20	−0.28, −0.12
Sport index	−0.21**	−0.24	−0.34, −0.15	−0.15**	−0.14	−0.23, −0.06
Total PA index	−0.56**	−0.53	−0.59, −0.46	−0.50**	−0.47	−0.55, −0.39

r Pearson correlation coefficients, MVPA moderate-to-vigorous physical activity, PA physical activity, CI confidence interval
*P- value significant at <0.05
**P value significant at <0.01

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