Table 1.
Characteristics of study participants
| Characteristics (n = 199) | Mean ± SD | LnRHI ≤ 0.51 (n = 84) | LnRHI > 0.51 (n = 115) | P |
|---|---|---|---|---|
| Age (years) | 38 ± 7.5 | 38.25 ± 7.24 | 37.61 ± 7.74 | 0.69 |
| Age (years) | ||||
| ≤44 | 74% | |||
| >44 | 26% | |||
| BMI | 24.26 ± 4.27 | 23.83 ± 4.52 | 24.58 ± 4.07 | 0.22 |
| BMI | ||||
| <25 | 60.50% | |||
| ≥25 | 39.50% | |||
| Education (years) | 5 ± 3 | 5.15 ± 3.40 | 5.00 ± 3.58 | 0.74 |
| Education (years) | ||||
| No education | 19% | |||
| At least primary level and above | 81% | |||
| Household income (BDT) | 10,193 ± 7,268 | 10,324.71 ± 7,610.22 | 10,097.35 ± 7,100.55 | 0.00 |
| Years exposed to biomass fuel (IQR) | 16 (11.5–22) | 17 (12–20) | 16 (11–25) | 0.61 |
| Daily cooking time (IQR) (hours) | 2 (2–3) | 2 (2–3) | 3 (2–3) | 0.00 |
| Heart rate (beats/min) | 77.4 ± 11.46 | 78.89 ± 11.07 | 76.29 ± 11.72 | 0.11 |
| SBP (mmHg) | 112.78 ± 12.76 | 112.85 ± 11.57 | 112.73 ± 13.62 | 0.94 |
| DBP (mmHg) | 74.77 ± 9.47 | 74.11 ± 8.12 | 75.26 ± 10.38 | 0.40 |
| Exposure to air pollutants (48 hours) | ||||
| PM2.5 (μgm–3) | 144.14 ± 61.26 | 138.59 ± 58.45 | 143.46 ± 50.24 | 0.53 |
| Black carbon (μgm–3) | 6.35 ± 2.18 | 6.74 ± 2.22 | 5.82 ± 2.03 | 0.00 |
| CO (ppm) (IQR) | 0.97 (0.62–1.35) | 0.90 (0.65–1.23) | 0.99 (0.62–1.45) | 0.16 |
A lower RHI value (<1.67 for RHI or <0.51 for LnRHI) indicates impaired hyperemic response to ischemia or endothelial dysfunction (Source: ITAMAR Website).
BDT indicates Bangladeshi Taka/month; IQR, interquartile range.