Exposure to public natural space as a protective factor for emotional well-being among young people in Canada

BMC Public Health

Table 5 Sensitivity analysis of selected students known to live within 5 km buffer (N = 9 271)

Quartiles	Total natural space	Green space	Blue space
	RR (95% CI)^a	RR (95% CI)^a	RR (95% CI)^a
1	1.00	1.00	1.00
2	1.00 (0.94-1.06)	1.00 (0.93-1.06)	1.02 (0.96-1.08)
3	1.11 (1.05-1.17)	1.05 (0.99-1.11)	1.08 (1.01-1.14)
4	1.03 (0.96-1.09)	1.03 (0.96-1.09)	1.08 (1.02-1.14)
P trend	*0.04*	0.19	*0.003*
By urban/rural geographic location
Rural area
1	1.00	1.00	1.00
2	-	-	-
3	-	-	-
4	-	-	-
P trend	-	-	-
Small city
1	1.00	1.00	1.00
2	0.98 (1.01-1.22)	1.08 (0.95-1.20)	1.10 (0.97-1.22)
3	1.12 (1.07-1.32)	1.14 (1.03-1.24)	1.15 (1.03-1.26)
4	1.11 (1.00-1.22)	1.06 (0.95-1.16)	1.19 (1.07-1.29)
P trend	0.05	0.35	*0.001*
Metropolitan area
1	1.00	1.00	1.00
2	0.97 (0.87-1.08)	0.98 (0.85-1.11)	1.03 (0.93-1.14)
3	1.11 (0.99-1.22)	1.03 (0.90-1.16)	1.14 (1.03-1.25)
4	1.10 (0.95-1.24)	1.12 (0.97-1.26)	1.15 (1.01-1.29)
P trend	0.06	0.07	*0.004*

RR (95% CI), Risk ratio (95% Confidence Intervals).
^aAdjusted for gender, age, ethnicity, family affluence, perceived neighborhood safety, and neighborhood rundown houses as determined in Model 3 of Table 3.

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