Table 5.
Demographic and health history variables pre- and postmatch between those without insomnia and those with only MOTN awakening
| Prematch
|
Postmatch
|
|||||
|---|---|---|---|---|---|---|
| No insomnia (N=31,811) |
MOTN awakening only (N=2,115) |
P-value | Matched control (N=2,115) |
MOTN awakening only (N=2,115) |
P-value | |
| Age (Mean ± SD) | 47.17±16.54 | 53.38±15.60 | <0.001 | 53.25±16.04 | 53.38±15.60 | 0.784 |
| Female (%) | 14,659 (46.1%) | 1,289 (60.9%) | <0.001 | 1,263 (59.7%) | 1,289 (60.9%) | 0.414 |
| Race/ethnicity | <0.001 | 0.567 | ||||
| Non-Hispanic white (%) | 21,904 (68.9%) | 1,599 (75.6%) | 1,617 (76.5%) | 1,599 (75.6%) | ||
| Non-Hispanic black (%) | 4,054 (12.7%) | 243 (11.5%) | 216 (10.2%) | 243 (11.5%) | ||
| Hispanic (%) | 2,665 (8.4%) | 146 (6.9%) | 156 (7.4%) | 146 (6.9%) | ||
| Other race/ethnicity (%) | 3,188 (10.0%) | 127 (6.0%) | 126 (6.0%) | 127 (6.0%) | ||
| Less than university education (%) | 17,227 (54.2%) | 1,103 (52.2%) | 0.073 | 1,176 (55.6%) | 1,103 (52.2%) | 0.024 |
| Annual household income (USD) | 0.052 | 0.025 | ||||
| <$25K (%) | 4,875 (15.3%) | 283 (13.4%) | 228 (10.8%) | 283 (13.4%) | ||
| $25K to <$50K (%) | 7,746 (24.4%) | 511 (24.2%) | 521 (24.6%) | 511 (24.2%) | ||
| $50K to <$75K (%) | 6,185 (19.4%) | 453 (21.4%) | 501 (23.7%) | 453 (21.4%) | ||
| $75K or more (%) | 9,434 (29.7%) | 639 (30.2%) | 606 (28.7%) | 639 (30.2%) | ||
| Decline to answer (%) | 3,571 (11.2%) | 229 (10.8%) | 259 (12.2%) | 229 (10.8%) | ||
| Employed (%) | 18,878 (59.3%) | 1,100 (52.0%) | <0.001 | 1,126 (53.2%) | 1,100 (52.0%) | 0.423 |
| BMI category | 0.082 | 0.023 | ||||
| Underweight (%) | 642 (2.0%) | 25 (1.2%) | 38 (1.8%) | 25 (1.2%) | ||
| Normal weight (%) | 10,617 (33.4%) | 714 (33.8%) | 653 (30.9%) | 714 (33.8%) | ||
| Overweight (%) | 10,438 (32.8%) | 715 (33.8%) | 683 (32.3%) | 715 (33.8%) | ||
| Obese (%) | 9,442 (29.7%) | 621 (29.4%) | 688 (32.5%) | 621 (29.4%) | ||
| Decline to provide weight (%) | 672 (2.1%) | 40 (1.9%) | 53 (2.5%) | 40 (1.9%) | ||
| Drink alcohol (%) | 19,805 (62.3%) | 1,452 (68.7%) | <0.001 | 1,542 (72.9%) | 1,452 (68.7%) | 0.002 |
| Smoking behavior | <0.001 | 0.508 | ||||
| Never smoked (%) | 18,979 (59.7%) | 1,157 (54.7%) | 1,164 (55.0%) | 1,157 (54.7%) | ||
| Former smoker (%) | 8,439 (26.5%) | 725 (34.3%) | 698 (33.0%) | 725 (34.3%) | ||
| Current smoker (%) | 4,393 (13.8%) | 233 (11.0%) | 253 (12.0%) | 233 (11.0%) | ||
| Regularly exercise (%) | 21,085 (66.3%) | 1,444 (68.3%) | 0.06 | 1,508 (71.3%) | 1,444 (68.3%) | 0.032 |
| Charlson comorbidity index (Mean ± SD) | 0.24±0.59 | 0.32±0.70 | <0.001 | 0.31±0.68 | 0.32±0.70 | 0.687 |
Abbreviations: BMI, body mass index; MOTN, middle-of-the-night; SD, standard deviation.