Table 3.

Days of Sleep Insufficiency per Month and Odds of Greenspace Access BRFSS, 2010, (N=245,531)⁺

Categories of Insufficient Sleep	Multivariable Odds Ratio Entire Sample (95% Confidence Intervals)	Multivariable Odds Ratio For Women (95% Confidence Intervals)	Multivariable Odds Ratio For Men (95% Confidence Intervals)	Multivariable Odds Ratio For Whites (95% Confidence Intervals)	Multivariable Odds Ratio For Blacks (95% Confidence Intervals)
1–6 Days	1 (referent)	1 (referent)	1 (referent)	1 (referent)	1 (referent)
7–13 days	0.995 [0.988,1.002]	1.002 [0.994,1.010]	0.991*** [0.987,0.995]	0.995 [0.987,1.002]	1.002 [0.999,1.006]
14–20 days	1.004 [0.999,1.009]	1.009** [1.003,1.015]	0.996*** [0.993,0.998]	1.012*** [1.007,1.017]	0.987*** [0.981,0.993]
21–29 days	0.991*** [0.986,0.996]	0.997 [0.989,1.004]	0.984*** [0.979,0.990]	0.999 [0.994,1.005]	0.975*** [0.971,0.980]
30 days	1.005 [0.999,1.011]	1.015*** [1.009,1.021]	0.991*** [0.986,0.996]	1.006 [1.000,1.013]	1.007** [1.002,1.011]

^*p < 0.05,

^**p < 0.01,

^***p < 0.001;

^{^}Refers to an index with scores for mean temperature, humidity, hours of sunlight, overall topography, and percent of water at the county level. In the stratified analyses for gender and race, these variables were not controlled for.

⁺adjusted for age (years), gender (men, women), marital status (divorced, separated, widowed, married), race (non-Hispanic White, non-Hispanic Black, Hispanic, Asian, other), education (< high school, > high school), employment status (employed, unemployed/retired, homemaker, student), number of children, physical activity, smoking, income level, asthma (no, yes), general health status (excellent, good, very good, fair, poor), emotional support (never, sometimes, rarely), disability (no, yes), body mass index categories (<25, 25–29, ≥30 kg/m2), heavy alcohol use (yes, no).