Characteristics | Missing | Excluded Participants | Participants in the Final Model | P-value |
---|---|---|---|---|
N | N (%) | N (%) | ||
Total | 5245 (20%) | 20773 (80%) | ||
Outcome Variables | ||||
SBP mmHg (SD) | 0 | 127.8 (18.8) | 128.2 (16.7) | 0.20 |
DBP mmHg (SD) | 0 | 77.1 (22.8) | 76.8 (9.6) | 0.43 |
Meteorological Variables | ||||
Same day maximum temp, lower by 20°F (mean, SD) | 0 | 70.4 (17.0) | 70.6 (16.8) | 0.52 |
Same day minimum temp, lower by 20°F (mean, SD) | 0 | 55.2 (17.1) | 55.2 (16.8) | 0.76 |
Maximum temp variability, by SD increase (mean, SD) | 0 | 2.0 (1.0) | 2.0 (1.0) | 0.008 |
Minimum temp variability, by SD increase (mean, SD) | 0 | 2.2 (1.0) | 2.1 (1.0) | <.0001 |
Season | ||||
Summer | 1450 (28%) | 5872 (28%) | ||
Fall | 0 | 1400 (27%) | 5721 (28%) | 0.003 |
Winter | 1289 (25%) | 4601 (22%) | ||
Spring | 1106 (21%) | 4579 (22%) | ||
Demographics | ||||
Age, years (mean, SD) | 65.3 (9.4) | 65.7 (9.3) | 0.004 | |
Male | 5 | 2251 (43%) | 9481 (46%) | 0.0005 |
Black Race | 8 | 1926 (37%) | 3311 (43%) | <.0001 |
Region | ||||
Stroke Buckle | 1195 (23%) | 3605 (17%) | ||
Stroke Belt | 0 | 2010 (38%) | 7343 (35%) | <.0001 |
Non-Belt | 2040 (39%) | 9825 (47%) | ||
Population Density | ||||
Urban | 2916 (56%) | 1952 (9%) | ||
Mixed | 0 | 418 (8%) | 2071 (10%) | <.0001 |
Rural | 1911 (36%) | 16750 (81%) | ||
SES Factors | ||||
Education < = 8th Grade | 24 | 726 (14%) | 2686 (13%) | 0.06 |
Income | ||||
< $20 k | 1069 (20%) | 3957 (19%) | ||
$20 k-$35 k | 0 | 1318 (25%) | 5112 (25%) | |
$35 k-$75 k | 1472 (28%) | 6186 (30%) | 0.0008 | |
>= $75 k | 721 (14%) | 3135 (15%) | ||
refused | 665 (13%) | 2483 (12%) | ||
Health Behaviors | ||||
Smoking Status | ||||
Never | 2376 (46%) | 9170 (44%) | ||
Current | 97 | 764 (15%) | 3045 (15%) | 0.01 |
Past | 2008 (39%) | 8558 (41%) | ||
Alcohol use (never) | 0 | 1704 (32%) | 6107 (29%) | <.0001 |
Co-morbidities | ||||
BMI | ||||
Underweight/Normal | 362 | 1210 (25%) | 5183 (25%) | |
Overweight | 1798 (37%) | 7677 (40%) | 0.92 | |
Obese | 1875 (38%) | 7913 (38%) | ||
Hyperlipidemia | 19 | 4085 (78%) | 18848 (91%) | <.0001 |
Diabetes | 895 | 980 (23%) | 4565 (22%) | 0.42 |