Skip to main content
. Author manuscript; available in PMC: 2020 Jul 1.
Published in final edited form as: Behav Sleep Med. 2017 Nov 3;17(4):459–469. doi: 10.1080/15402002.2017.1395337

Table 1.

Baseline Demographic Characteristics

Total
(n=49)
Low-Dose (n=23) High-Dose (n=26) p-value
Age (years) 64.53 (3.83) 64.52 (4.37) 64.54 (3.37) 0.99
Race, % (#) 0.34
    White 83.67 (41) 91.30 (21) 76.92 (20)
    Black 14.29 (7) 8.70 (2) 19.23 (5)
    Other 2.04 (1) 0.00 (0) 3.85 (1)
Education, % (#)a 0.80
    High School Graduate 16.33 (8) 13.04 (3) 19.23 (5)
    College 1 to 3 years 28.57 (14) 26.09 (6) 30.77 (8)
    College 4 years or more 53.06 (26) 56.52 (13) 50.00 (13)
Household Income, % (#)a 0.97
    <$30,000 8.16 (4) 8.70 (2) 7.69 (2)
    $30,000 – 49,999 16.33 (8) 17.39 (4) 15.38 (4)
    $50,000 – 69,999 20.41 (10) 17.39 (4) 23.08 (6)
    $70,000+ 46.94 (23) 47.83 (11) 46.15 (12)
BMI (kg/m2) 25.48 (3.57) 26.34 (3.93) 24.72 (3.11) 0.11
VO2peak (ml/kg/min) 19.76 (3.74) 19.43 (3.25) 20.05 (4.18) 0.57
CES-D 5.00 (5.01) 5.17 (5.46) 4.85 (4.68) 0.82

Note. BMI = body mass index; CES-D = Center for Epidemiologic Studies Depression score; VO2peak = peak oxygen consumption. Values presented are means (standard deviations) unless otherwise stated. P-values were obtained from chi-square and t-tests, with statistical significance defined at the alpha < 0.05 level.

a

Indicates missing values which results in some percentages not totaling up to 100%.

HHS Vulnerability Disclosure