Table 4. Associations with 95% confidence interval (95%CI) between the composite outcome (the presence of at least one covid-19 symptom) and risk factors (n = 197 observations) in Limeira, SP, Brazil.
| Risk factor | OR | 95%CI | p-value |
|---|---|---|---|
| Group (chemically exposed or control) | 1.74 | 0.83–3.68 | 0.14 |
| Age (years old) | 1.00 | 0.97–1.04 | 0.83 |
| BMI (kg/m2) | 0.99 | 0.93–1.06 | 0.85 |
| Chromium (ppb) | 0.88 | 0.64–1.21 | 0.43 |
| Manganese (ppb) | 1.08 | 0.95–1.22 | 0.26 |
| Nickel (ppb) | 1.11 | 0.84–1.46 | 0.48 |
| Copper (ppb) | 1.00 | 1.00–1.00 | 0.50 |
| Zinc (ppb) | 1.00 | 1.00–1.00 | 0.91 |
| Arsenic (ppb) | 1.01 | 0.75–1.35 | 0.96 |
| Cadmium (ppb) | 1.09 | 0.80–1.49 | 0.59 |
| Tin (ppb) | 3.65 | 0.84–15.84 | 0.08 |
| Mercury (ppb) | 0.64 | 0.31–1.30 | 0.22 |
| Lead (µg/dL) | 1.22 | 0.89–1.68 | 0.22 |
| Adherence to social distancing | 0.80 | 0.34–1.86 | 0.60 |
| Days away from home per week | 1.02 | 0.87–1.19 | 0.83 |
| Hours spent away from home when going out | 1.09 | 0,86–1,38 | 0.48 |
| Use of public transportation | 1.25 | 0.34–1.87 | 0.61 |
| Bus use | 1.95 | 0.59–6.44 | 0.28 |
| Car use via transport apps | 0.96 | 0.43–2.18 | 0.93 |
| Taxi use | 6.04 | 1.05–34.87 | 0.04 |