Table 2 Mean (SD) of perceived greenness, time spent in walking, social coherence score and local social interaction, by the SF-12 physical and mental component score categories

	PCS			MCS
	Low (n = 950)	High (n = 945)	p	Low (n = 945)	High (n = 950)	p
Perceived greenness*	3.1 (0.6)	3.2 (0.5)	<0.001	3.1 (0.6)	3.3 (0.5)	<0.001
Walking for recreation, minutes/day	13.6 (21.6)	17.2 (23.5)	<0.001	14.0 (22.0)	16.8 (23.2)	<0.01
Walking for transport, minutes/day	22.2 (30.5)	23.6 (30.2)	0.33	22.8 (30.2)	23.1 (30.5)	0.84
Social coherence score†	3.2 (0.7)	3.3 (0.7)	<0.01	3.1 (0.7)	3.4 (0.7)	<0.001
Local social interaction‡	9.5 (8.2)	9.2 (7.7)	0.40	8.7 (7.8)	10.0 (8.1)	<0.001

MCS, 12-item short-form health survey (SF-12) mental component score; PCS, SF-12 physical component score.
*Perceived greenness ranges from 1 (lowest) to 4 (highest).
†Social coherence score ranges from 1 (lowest) to 5 (highest).
‡Mean number of days participants engaged in local social interaction in the past month.