Skip to main content
. Author manuscript; available in PMC: 2022 Sep 1.
Published in final edited form as: Sleep Med. 2021 Jun 28;85:45–53. doi: 10.1016/j.sleep.2021.06.028

Table 1.

Sample Demographic Information

Sample Demographic Information Whole Sample (N = 3249) Sample 1, EFA (N = 1640) Sample 2, CFA (N = 1609)
Variable N % N % N %
Age [Range / Mean(SD)] 19–99 42.77 (16.73) 19–87 42.41 (16.67) 19–99 43.14 (16.80)
Racial/Ethnic Group
 White 2512 77.3 1283 78.2 1229 76.4
 Black 209 6.4 103 6.3 106 6.6
 Asian 174 5.4 84 5.1 90 5.6
 Hispanic/Latino Only 145 4.5 66 4.0 79 4.9
 More than one race/ethnicity, not Hispanic/Latino 77 2.4 35 2.1 42 2.6
 More than one race/ethnicity, Hispanic/Latino 67 2.1 30 1.8 37 2.3
 Other Race 43 1.3 26 1.6 17 1.1
 Native American 16 0.5 10 0.6 6 .4
 Pacific Islander 6 0.2 3 0.2 3 .2
Gender
 Female 1575 48.5 810 43.2 765 47.5
 Male 1466 45.1 708 49.4 758 47.1
 Other 208 6.4 122 7.4 86 5.3

EFA = exploratory factor analysis, CFA = confirmatory factor analysis.

Note: Table represents whole sample after removal of 35 outliers from Sample 2 during CFA analyses. Sample did not significantly differ on any demographic variables.