Capturing exposure in environmental health research: challenges and opportunities of different activity space models

Table 4 The significance of paired sample t tests for the contextual variables between the four activity space models

	Admin. unit	Buffer	Home range	IREM
Greenness
Admin		< 0.001	< 0.001	< 0.001
Buffer	< 0.001		< 0.001	< 0.001
HR	< 0.001	< 0.001		< 0.001
IREM	< 0.001	< 0.001	< 0.001
Size of activity space
Admin		< 0.001	< 0.001	< 0.001
Buffer	< 0.001		< 0.001	< 0.001
HR	< 0.001	< 0.001		< 0.001
IREM	< 0.001	< 0.001	< 0.001
Land use mix
Admin		0.797	0.801	0.803
Buffer	0.797		1.000	1.000
HR	0.801	1.000		1.000
IREM	0.803	1.000	1.000
Walkability index
Admin		< 0.001	< 0.001	0.803
Buffer	< 0.001		1.000	1.000
HR	< 0.001	1.000		< 0.001
IREM	0.803	1.000	< 0.001
Pedestrian roads
Admin		< 0.001	< 0.001	< 0.001
Buffer	< 0.001		< 0.001	0.002
HR	< 0.001	< 0.001		< 0.001
IREM	< 0.001	0.002	< 0.001

A significance level of 0.05 (with adjustment for multiple comparison p < 0.008) is used to judge whether two measures are significantly different. The italicized values are statistically significant

ISSN: 1476-072X