Table 1.
Characteristics of Study Participants
| Variable | Value |
|---|---|
| Demographic characteristic | |
| Mean age, y (SD) | 53.7 (7.6) |
| Women, % | 57.9 |
| Normal BMI (18.5–24.9) | 47.7 |
| BMI 25–29.9 | 33 |
| BMI ≥30 | 19.3 |
| Men, % | 42.1 |
| Normal BMI (18.5–24.9), % | 15.7 |
| BMI 25–29.9, % | 54.2 |
| BMI ≥30, % | 30.1 |
| Mean BMI (SD) | 26.6 (4.6) |
| Total current nonsmokers, % | 81.6 |
| Ex-smoker | 56.3 |
| Male ex-smoker | 52.3 |
| Female ex-smoker | 47.6 |
| Quit >10 y | 72.0 |
| Quit in last 10 y | 28.0 |
| Never smoked | 35.6 |
| Total smokers, % | 18.4 |
| Male | 37.2 |
| Female | 62.8 |
| Study finding | |
| COPD prevalence, % | 6.0 |
| Male | 64.3 |
| Female | 35.7 |
| Mild | 36.4 |
| Moderate | 36.4 |
| Severe | 27.3 |
| Maximum LH, cm | |
| (95% CI) | |
| Mean LH | 6.33 (6.17–6.49) |
| Male | 6.41 (6.25–6.57) |
| Female | 6.26 (6.10–6.42) |
| COPD, female | 5.78 (5.52–6.04) |
| Non-COPD, female | 6.28 (6.13–6.43) |
| COPD, male | 6.6 (6.36–6.83) |
| Non-COPD, male | 6.4 (6.24–6.56) |
| LH ≤4 cm, % | 4.5 (1.86–7.14) |
BMI = body mass index; COPD = chronic obstructive pulmonary disease; LH = laryngeal height.