Table 3.
Socioeconomic status variables, by apnea–hypopnea index groups, unadjusted analysis
| AHI <2 (n = 267) | AHI 2–5 (n = 248) | AHI 5–10 (n = 139) | AHI ≥10 (n = 120) | P Value* | |
|---|---|---|---|---|---|
| Poverty rate, % | 0.013 | ||||
| Mean (SD) | 20.27 (16.03) | 19.31 (15.98) | 23.13 (17.46) | 24.2 (16.02) | |
| Median (Q1, Q3) | 15.68 (6.25, 32.63) | 14.96 (5.41, 30.91) | 20.53 (7.24, 34.14) | 23.94 (11.09, 33.56) | |
| Percentage of single-female–headed household with children | 0.007 | ||||
| Mean (SD) | 19.91 (14.02) | 19.99 (15.56) | 23.75 (16.22) | 24.25 (15.74) | |
| Median (Q1, Q3) | 17.38 (7.89, 30.1) | 15.75 (7.36, 28.35) | 22.06 (10.76, 34.1) | 22.9 (10.52, 34.89) | |
| Unemployment rate, % | 0.002 | ||||
| Mean (SD) | 34.37 (15.28) | 31.7 (14.99) | 35.94 (15.26), | 37.46 (15.64) | |
| Median (Q1, Q3) | 33.51 (21.75, 46.59) | 27.67 (19.89, 42.16) | 34.34 (23.75, 46.7) | 36.99 (23.31, 49.89) | |
| High school dropout rate, % | 0.22 | ||||
| Mean (SD) | 5.92 (8.87) | 5.44 (9.38) | 7.06 (10.76) | 6.59 (8.83) | |
| Median (Q1, Q3) | 0 (0, 9.5) | 0 (0, 7.3) | 1.11 (0, 10.74) | 2.88 (0, 11.15) | |
| Linear distance† | 0.41 | ||||
| Mean (SD) | 0.75 (0.76) | 0.85 (0.99) | 0.76 (1.02) | 0.65 (0.75) | |
| Median (Q1, Q3) | 0.6 (0.26, 0.89) | 0.55 (0.22, 1.12) | 0.48 (0.21, 0.98) | 0.45 (0.26, 0.8) | |
| Travel distance† | 0.24 | ||||
| Mean (SD) | 3.41 (2.83) | 3.25 (2.76) | 3.16 (2.71) | 2.78 (2.25) | |
| Median (Q1, Q3) | 2.72 (1.78, 4.13) | 2.59 (1.42, 4.06) | 2.65 (1.57, 3.74) | 2.34 (1.44, 3.48) | |
| Severely distressed neighborhood, % | 66 (24.72%) | 56 (22.58%) | 33 (23.74%) | 37 (30.83%) | 0.38 |
Definition of abbreviation: AHI = apnea–hypopnea index.
*
Kruskal–Wallis test for continuous variables and Fisher’s exact test for dichotomous variables.
†
n = 215, 148, 92, and 77, respectively, for AHI categories less than 2, 2–5, 5–10, and greater than 10.