TABLE 1.
Sociodemographic and sleep characteristics of target population (unweighted n = 1035)
| Sexb | |
| Female | 53.82 (1.82) |
| Male | 46.18 (1.82) |
| Ethnicityb | |
| Dominican | 11.82 (1.42) |
| Central American | 6.57 (1.22) |
| Cuban | 25.21 (3.09) |
| Mexican | 32.52 (2.86) |
| Puerto Rican | 19.87 (1.95) |
| South American | 4.02 (0.66) |
| Educationb | |
| Less than high school | 33.81 (2.13) |
| High school | 23.16 (1.76) |
| Greater than high school | 43.03 (2.13) |
| Alcoholb | |
| No | 52.23 (2.18) |
| Yes | 47.77 (2.18) |
| Physical activityb | |
| Poor | 25.33 (1.79) |
| Intermediate | 13.59 (1.36) |
| Ideal | 61.09 (1.94) |
| Heart failureb | |
| No heart failure | 97.55 (0.60) |
| Heart failure | 2.45 (0.60) |
| Stroke/TIAb | |
| No previous stroke/TIA | 96.72 (1.06) |
| Yes previous stroke/TIA | 3.28 (1.06) |
| Antidepressant medicationb | |
| No | 90.46 (1.14) |
| Yes | 9.54 (1.14) |
| Centerb | |
| Bronx | 28.61 (2.41) |
| Chicago | 13.61 (1.45) |
| Miami | 33.91 (3.48) |
| San Diego | 23.88 (2.74) |
| Age at Sueño clinic visit (years)a | 55.22 (2.52) |
| Time from INCA to Sueño (days)a | 1548.50 (174.55) |
| BMI @ Sueño (kg/m2)a | 30.08 (2.77) |
| CESD-10 @ Sueñoa | 7.32 (3.04) |
| STAI-10 @ Sueñoa | 16.60 (2.71) |
| REI at baseline (events/hour)a | 7.23 (4.60) |
| Number of good actigraphy recording days | 7.24 (0.42) |
| Good weekend actigraphy recording days | |
| <2 days | 3.91 (1.16) |
| ≥2 days | 96.09 (1.16) |
| Primary exposures | |
| Average sleep time (hours)a | 6.73 (0.53) |
| Average WASO (minutes)a | 53.79 (12.85) |
| Secondary exposures | |
| Average sleep onset
latency (minutes)a |
11.34 (11.46) |
| Average sleep fragmentation in main sleep intervals (%)a | 22.38 (4.08) |
| Average sleep efficiency in main rest intervals (%)a | 85.57 (3.34) |
| Average wake bouts in sleep intervalsa | 40.08 (6.93) |
| Average sleep maintenance efficiency (%)a | 88.35 (2.66) |
| Days with naps with sleep >= 15a | 1.11 (0.80) |
| Average sleep time per
nap (minutes)a |
49.71 (17.48) |
| Epworth sleepiness scalea | 5.72 (2.14) |
| Insomnia severity indexb | |
| <15 | 78.60 (1.86) |
| ≥15 | 21.40 (1.86) |
Notes.
SOL-INCA was conducted between 2015 and 2018; on average 7 years after Visit-1 cognitive testing.
Abbreviations: BMI, body mass index; CESD-10, Center for Epidemiologic Studies Depression Scale; INCA, Investigation of Neurocognitive Aging; REI, respiratory invent index; STAI-10, State-Trait Anxiety Inventory; TIA, transient ischemic attack; WASO, wake after sleep onset.
a
Mean (standard deviation).
b
% (standard error).