Table 1 Characteristics of the elderly who participated in the Taiwan Aging Cohort Study, 2015–2016 (n = 1241).
From: The effects of fine and coarse particulate matter on lung function among the elderly
Mean (SD) or % | ||
|---|---|---|
Male | Female | |
Number | 522 | 719 |
Demographics | ||
Age, yr | 70.91 (4.38) | 70.16 (4.07) |
Body height, cm | 163.22 (6.18) | 154.24 (6.69) |
Body weight, kg | 66.19 (9.40) | 58.13 (9.77) |
Body mass index | 24.83 (3.11) | 24.39 (3.48) |
Education level | ||
Low(primary school or less) | 38.12 | 48.82 |
Medium (middle or high school or equivalent) | 45.02 | 44.65 |
High (university degree or more) | 16.86 | 6.54 |
Smoking status, % | ||
Never | 61.30 | 93.74 |
Current | 14.75 | 4.17 |
Former | 23.95 | 2.09 |
Pack-years* | 23.33 (16.44) | 25.04 (18.35) |
Physician diagnosed asthma, % | 2.87 | 1.39 |
Physician diagnosed COPD, % | 2.49 | 1.39 |
Lung function indices | ||
FVC, ml | 2872.89 (560.99) | 2026.23 (417.74) |
FEV1, ml | 2235.00 (482.24) | 1622.52 (336.17) |
FEF25~75%, ml/s | 2138.03 (849.44) | 1675.52 (636.93) |
FEF25%, ml/s | 5054.14 (1680.46) | 3761.57 (1098.84) |
FEF50%, ml/s | 2869.41 (1118.19) | 2248.80 (831.12) |
FEF75%, ml/s | 811.53 (413.43) | 645.83 (332.55) |
FEV1/FVC | 0.78 (0.08) | 0.80 (0.07) |
Season of lung function test, % | ||
Spring (March-May) | 52.11 | 49.65 |
Summer (June-August) | 43.10 | 45.20 |
Fall (September-November) | 1.15 | 1.53 |
Winter (December-February) | 3.64 | 3.62 |
