Mediators of Inflammation / 2015 / Article / Tab 1

Research Article

Inflammation, Oxidative Stress, and Antioxidants Contribute to Selected Sleep Quality and Cardiometabolic Health Relationships: A Cross-Sectional Study

Table 1

Characteristics of the US adult population ≥20 years of age.

CharacteristicsSleep quality value
Good ()Fair ()Poor ()Very poor ()

Age (mean (95% CI))51.5 (48.7, 54.3)48.9 (46.2, 51.6)46.6 (44.4, 48.8)46.7 (44.5, 48.9)<0.05
Age categories (% (95% CI))
 20 to <40 years28.2 (21.7, 34.7)33.9 (28.6, 39.2)36.8 (31.8, 41.8)33.7 (29.1, 38.4)<0.05
 40 to <65 years45.9 (40.4, 51.5)44.8 (39.2, 50.4)47.1 (44.1, 50.1)51.3 (45.7, 56.9)
 ≥65 years25.9 (20.3, 31.4)21.3 (15.9, 26.6)16.1 (12.2, 20.0)15.0 (10.0, 19.9)
Sex
 Men60.8 (55, 66.6)51.5 (46.5, 56.4)51.1 (47.5, 54.8)43.4 (39.5, 47.4)<0.05
 Women39.2 (33.4, 45.0)48.5 (43.6, 53.5)48.9 (45.2, 52.5)56.6 (52.6, 60.5)
Ethnicity
 Non-Hispanic White58.1 (49.1, 67.2)73.8 (66.7, 80.9)75.2 (67.4, 82.9)73.6 (68.3, 78.9)<0.05
 Non-Hispanic Black15.6 (10.7, 20.5)10.0 (5.5, 14.6)8.6 (5.1, 12.2)13.0 (8.9, 17.1)
 Mexican American14.8 (9.1, 20.6)7.0 (3.5, 10.6)6.6 (4.6, 8.6)5.3 (3.2, 7.3)
 Others11.4 (6.0, 16.8)9.2 (3.6, 14.7)9.6 (5.1, 14.1)8.1 (5.0, 11.3)
Education
 <High school26.1 (18.7, 33.5)16.5 (11.2, 21.8)14.2 (10.9, 17.5)16.8 (12.5, 21.1)<0.05
 High school25.5 (19.0, 32.1)24.9 (20.1, 29.7)24.4 (20.2, 28.6)27.7 (24.0, 31.4)
 College48.4 (36.2, 60.6)58.6 (51.5, 65.7)61.4 (56.0, 66.8)55.5 (50.0, 61.0)
Income
 <$20,00016.8 (12.0, 21.6)14.7 (10.8, 18.6)12.9 (9.2, 16.7)18.8 (14.1, 23.6)NS
 $20,000–44,99933.7 (25.8, 41.5)33.1 (27.2, 39.0)30.3 (23.6, 37.0)31.5 (24.0, 39.0)
 ≥$45,00049.5 (39.5, 59.6)52.2 (45.6, 58.9)56.8 (49, 64.5)49.7 (42.1, 57.3)
Smoking
 None52.1 (43.0, 61.3)47.7 (40.8, 54.5)52.9 (47.9, 58)42.8 (36.6, 49.0)<0.05
 Current20.7 (14.7, 26.8)20.6 (14.9, 26.4)22.1 (17.1, 27.2)34.3 (29.7, 39.0)
 Past27.1 (21.5, 32.8)31.7 (26.8, 36.6)24.9 (20.8, 29.0)22.8 (19.3, 26.4)
Alcohol intake
 0 drinks/d36.6 (30.9, 42.3)29.8 (23.3, 36.3)28.1 (22.2, 34.0)33.6 (29.4, 37.8)NS
 <3 drinks/d41.3 (34.4, 48.3)46.3 (39.5, 53.1)44.8 (39.0, 50.5)39.7 (34.5, 44.8)
 ≥3 drinks/d22.1 (16.9, 27.3)23.9 (19.2, 28.6)27.1 (22.4, 31.9)26.8 (21.8, 31.7)
Recreational physical activity
 None reported41.2 (34.2, 48.1)28.2 (24.2, 32.3)28.2 (22.9, 33.5)35.6 (31.2, 39.9)<0.05
 <500 MET⋅min/w16.4 (11.3, 21.5)22.2 (17.8, 26.6)25.1 (20.2, 30.1)22.4 (18.3, 26.5)
 ≥500 MET⋅min/w42.4 (36.9, 48.0)49.6 (44.1, 55.1)46.6 (41.9, 51.4)42.1 (35.2, 49.0)

Mean (95% CI) for continuous variables and % (95% CI) for categorical variables. Overall sleep quality was calculated based on six questions on sleep habits of participants and categorized into quartiles: good (<3), fair (≥3 to 7), poor (≥7 to 12), and very poor (≥12). , two-sided; ANOVA or Chi-square, as appropriate. NS: not significant. Sum of weights = 95,276,598.

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