Table 1:
Characteristics of the study population in the Normative Aging Study and weather (2000–2013)
| All Visits | Visit 1 | |
|---|---|---|
| N | N | |
| Total Unique Observations | 2,048 | 728 |
| Total Unique IDs | 728 | 728 |
| Mean ± SD | Mean ± SD | |
| Age (y) | 75.8 ± 6.9 | 73.0 ± 6.9 |
| BMI (kg/m3) | 27.9 ± 4.1 | 28.2 ± 4.0 |
| Cigarette Pack years (y) | 20.3 ± 24.0 | 21.6 ± 25.6 |
| Estimated Glomerular Filtration Rate (mL/min/1.73m2) | 68.1 ± 16.1 | 71.3 ± 15.6 |
| Relative Humidity (%) | 68.0. ± 17.4 | 69.6 ± 17.4 |
| Ambient Temperature (°C) | 12.8 ± 8.8 | 12.8 ± 8.4 |
| White Blood Cells (cells/mm3) | 6,347 ± 1,854 | 6,313 ± 2,109 |
| Neutrophils (cells/mm3) | 3,986 ± 1,312 | 3,934 ± 1,294 |
| Monocytes (cells/mm3) | 542 ± 169 | 535 ± 163 |
| Lymphocytes (cells/mm3) | 1,575 ± 1,042 | 1,604 ± 1,423 |
| Eosinophils (cells/mm3) | 214 ± 154 | 209 ± 141 |
| Basophils (cells/mm3) | 38.0 ± 35.2 | 33.9 ± 32.5 |
| n(%) | n(%) | |
| Race | ||
| White | 1986 (98.0) | 707 (98.1) |
| Nonwhite | 42 (2.0) | 14 (1.9) |
| Coronary Heart Disease | 717 (35.0) | 218 (29.9) |
| Diabetes | 223 (10.9) | 65 (8.9) |
| <Two Drinks/Day | 1,674 (81.7) | 590 (81.0) |
| Smoking Status | ||
| Current | 87 (4.3) | 35 (4.8) |
| Former | 1,318 (64.4) | 471 (64.7) |
| Never | 643 (31.4) | 222 (30.5) |
| Lung Function | ||
| Diagnosis of chronic bronchitis, emphysema or asthma | 370 (18.1) | 133 (18.3) |
| No diagnosis of chronic bronchitis, emphysema or asthma | 1,678 (81.9) | 595 (81.7) |