Table 2.
Distribution of personal long-term exposure to outdoor air pollutants, based on geo-coded residential addresses for all patients and subgroups
| Personal long-term exposure to: |
Mean value (SD) Min—Max |
p-value | |||||
|---|---|---|---|---|---|---|---|
|
All patients (n = 118) |
Residing in the Greater Athens Area (n = 66) | Living outside of the Greater Athens Area (n = 52) | Patients with telomere length ratio (n = 36) |
AE-IPF (n = 55) |
Stable patients (n = 63) |
||
| O3 (μg/m3) |
76.8 (14.7) 53.3—105.7 |
67.0 (10.4) 53.3 – 93.5 |
89.3 (8.4) 67.6 – 105.7 |
78.5 (13.8) 53.5 – 102.3 |
73.6 (14.4) 53.3 – 100.0 |
79.6 (14.5) 55.5 – 105.7 |
0.4151/ < 0.0012 |
| NO2 (μg/m3) |
22.2 (18.6) 0.6—55.8 |
36.1 (12.6) 4.7 – 55.8 |
4.7 (5.6) 0.6 – 30.2 |
20.6 (17.6) 1.1 – 55.8 |
26.7 (18.4) 0.9 – 55.8 |
18.3 (18.1) 0.6 – 50.8 |
0.534 < 0.0012 |
| PM2.5 (μg/m3) |
27.2 (7.6) 16.2 – 43.1 |
32.2 (6.3) 20.6 – 43.1 |
20.7 (2.3) 16.2 – 31.6 |
26.5 (7.2) 18.6 – 40.7 |
28.5 (7.8) 18.5 – 43.1 |
26.0 (7.2) 16.2 – 40.7 |
0.519 < 0.0012 |
| PM10 (μg/m3) |
30.5 (7.5) 17.9 – 46.6 |
35.4 (6.4) 23.3 – 46.6 |
24.2 (2.5) 17.9 – 34.6 |
29.8 (7.1) 21.8 – 43.8 |
31.7 (7.8) 21.0 – 46.6 |
29.3 (7.2) 17.9 – 43.9 |
0.518 < 0.0012 |
Abbreviations: O3 ozone, PM particulate matter, NO2 nitrogen dioxide, SD Standard Deviation, AE-IPF Acute Exacerbation of Idiopathic Pulmonary Fibrosis
p-value1: independent samples t-test for assessing differences between patients with/without telomere length ratio measurement
p-value2: independent samples t-test for assessing differences between patients residing in/out of the Greater Athens Area