Table 2.
Distribution of maternal sociodemographic, perinatal, behavioral, and hospital characteristics for all delivery discharges from 2010 to 2014, overall and by obstructive sleep apnea status.
| Characteristic | Total N | OSA | No OSA | p-value for chi-square or t-test |
|---|---|---|---|---|
|
| ||||
| N (%) | N (%) | |||
|
| ||||
| Overall | 1,577,632 | 1963 (0.1) | 1,575,669 (99.9) | |
|
| ||||
| Maternal age | 29.6 (SD=6.0) | 32.3 (SD=6.0) | 29.6 (SD=6.0) | <0.001 |
|
| ||||
| Maternal race | ||||
| White | 710,872 (45.1) | 821 (41.8) | 710,051 (45.1) | <0.001 |
| Black | 292,318 (18.5) | 642 (32.7) | 291,676 (18.5) | |
| Hispanic | 109,842 (7.0) | 84 (4.3) | 109,758 (7.0) | |
| Asian | 74,120 (4.7) | 32 (1.6) | 74,088 (4.7) | |
| American Indian/Alaska Native | 5640 (0.4) | 8 (0.4) | 5632 (0.4) | |
| Native Hawaiian/Pacific Islander | 8552 (0.5) | 5 (0.3) | 8547 (0.5) | |
| Other/unknown | 376,288 (23.9) | 371 (18.9) | 375,917 (23.9) | |
|
| ||||
| Tobacco use | 57,435 (3.6) | 176 (9.0) | 57,259 (3.6) | <0.001 |
|
| ||||
| Alcohol use | 1760 (0.1) | 1 (0.1) | 1759 (0.1) | 0.421 |
|
| ||||
| Drug use | 22,768 (1.4) | 47 (2.4) | 22,721 (1.4) | <0.001 |
|
| ||||
| Multiple gestation | 39,018 (2.5) | 93 (4.7) | 38,925 (2.5) | <0.001 |
|
| ||||
| Obesity | 94,513 (6.0) | 1181 (60.2) | 93,332 (5.9) | <0.001 |
|
| ||||
| Pre-pregnancy hypertension | 45,757 (2.9) | 572 (29.1) | 45,185 (2.9) | <0.001 |
|
| ||||
| Pre-pregnancy diabetes | 19,461 (1.2) | 255 (13.0) | 19,206 (1.2) | <0.001 |
|
| ||||
| Coronary heart disease | 605 (0.04) | 11 (0.6) | 594 (0.04) | <0.001 |
Mean (standard deviation, SD) with t-test for continuous variables; number (%) with chi-square test for categorical variables. OSA, obstructive sleep apnea.