From: Airborne particulate matter and mitochondrial damage: a cross-sectional study
Variable | n | Mean RMtDNAcn* | 95% CI* |
---|---|---|---|
Age, years | Â | Â | Â |
   < 39 | 21 | 1.14 | 0.96 to 1.33 |
   39 - 47 | 21 | 1.29 | 1.10 to 1.47 |
   > 47 | 21 | 1.14 | 0.95 to 1.32 |
Body mass index, kg/m2 | Â | Â | Â |
   ≤25 | 21 | 1.25 | 1.07 to 1.44 |
   25 - 27.5 | 21 | 1.20 | 1.10 to 1.38 |
   > 27.5 | 21 | 1.12 | 0.93 to 1.30 |
Smoking duration, years | Â | Â | Â |
   0 | 23 | 1.17 | 0.99 to 1.35 |
   0 - 19 | 19 | 1.17 | 0.98 to 1.36 |
   > 19 | 21 | 1.23 | 1.04 to 1.42 |
Duration of employment, years | Â | Â | Â |
   < 9 | 20 | 1.27 | 1.08 to 1.46 |
   9 - 21 | 20 | 1.17 | 0.99 to 1.36 |
   > 21 | 19 | 1.15 | 0.96 to 1.34 |
Education | Â | Â | Â |
   Primary school | 12 | 1.28 | 1.07 to 1.48 |
   Middle school | 37 | 1.19 | 1.01 to 1.36 |
   High school | 14 | 1.12 | 0.92 to 1.32 |
Area of residence | Â | Â | Â |
   Rural | 12 | 1.24 | 1.05 to 1.42 |
   Suburbs | 41 | 1.14 | 0.99 to 1.30 |
   City centre | 8 | 1.21 | 1.00 to 1.41 |
Self-reported traffic intensity near home | Â | Â | Â |
   Low | 18 | 1.12 | 0.94 to 1.29 |
   Medium | 38 | 1.19 | 1.03 to 1.35 |
   High | 5 | 1.23 | 1.00 to 1.46 |