Table 2.
Morphology of the heart and lung in rats exposed to tobacco smoke and controls
| Variables | Control | ETS | P |
|---|---|---|---|
| BW (g) | 542 ± 67 | 484 ± 77 | 0.073 |
| LVW/BW (mg/kg) | 2.7 ± 0.8 | 2.9 ± 0.5 | 0.573 |
| RVW/BW (mg/kg) | 0.7 ± 0.3 | 1.4± 0.3 | 0.004 |
| Lung w/d | 4.8 (4.3–4.8) | 5.5 (5.3–5.6) | 0.013 |
| CSA (μm2) | 240 (235–244) | 258 (245–259) | 0.076 |
| IC (%) | 4.06 ± 0.4 | 3.5 ± 0.8 | 0.257 |
| % MI | 45.9 ± 4.1 | 48.0 ± 5.1 | 0.311 |
ETS- exposed to tobacco smoke, LV: left ventricle, BW: body weight, LVW: left ventricular weight, RVW: right ventricular weight, w/d: wet/dry ratio, CSA: cross-sectional area, IC: interstitial collagen volume fraction. %MI: infarction size. Data are expressed as mean ± SD or as medians with the lower quartile and upper quartile.