Table 3. Prevalence Ratio and 95% Confidence Interval of Frequent Insufficient Sleep, by Housing Insecurity and Food Insecurity Among Adults 18 Years or Older in 12 US States,^a 2009.

Characteristic	Model 1b	Model 2c	Model 3d
Housing insecurity
No	1 [Reference]	1 [Reference]	1 [Reference]
Yes	1.74 (1.63–1.86)	1.67 (1.55–1.79)	1.49 (1.38–1.60)e
Food insecurity
No	1 [Reference]	1 [Reference]	1 [Reference]
Yes	1.79 (1.68–1.92)	1.75 (1.62–1.88)	1.54 (1.42–1.67)e

^a Adults were drawn from respondents to an optional module from the 2009 Behavioral Risk Factor Surveillance System in 12 states (Alabama, Arkansas, California, Hawaii, Illinois, Kansas, Louisiana, Nebraska, New Mexico, Oklahoma, South Carolina, and Wisconsin).

^b Model 1: obtained from separate univariate logistic regression models that included only insecurity variables.

^c Model 2: results adjusted for age, sex, race/ethnicity, and education.

^d Model 3: results adjusted for all covariates in model 2 and for frequent mental distress.

^e 20% to less than 40% reduction of prevalence ratio between model with and without the potential mediator.