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. 2022 Feb 18;3(1):zpac005. doi: 10.1093/sleepadvances/zpac005

Table 2.

Demographic information across the two samples

Category M or % in M2 M or % in MR
Sex
Male 43.70% 46.92%
Female 56.30% 53.08%
Race
Non-Hispanic White 79.19% 81.59%
Black 17.02% 9.33%
Asian 0.54% 1.64%
All other races 3.24% 7.44%
Education
Did not graduate high school 9.36% 5.97%
High school degree 26.64% 16.42%
Some college, no degree 21.62% 17.76%
College degree 25.12% 34.76%
> Bachelor’s degree 17.07% 25.09%
Marital status
Unmarried 31.24% 30.49%
Married or cohabitating 68.76% 69.51%
Work status
Worker 61.65% 64.00%
Retired 25.21% 23.62%
Not employed or retired (e.g., unemployed, laid off, disabled, homemaker, student, on leave) 13.14% 12.39%
Work schedule
Nontraditional work schedule (i.e., works nights and/or weekends at least once per week) 20.33% 18.37%
Absence of nontraditional work schedule (i.e., nonworker or worker with a traditional work schedule) 79.67% 81.63%
Smoking status
Current nonsmoker 83.70% 87.90%
Current smoker 16.30% 12.10%
Body mass index (BMI) M = 28.32 M = 28.86
Depression symptoms M = 0.54/6.00 M = 0.65/6.00