Table 3.
Multivariable analysis between BMI category at the beginning of the follow up and different outcomes
| Clinical events* |
|||||||||
|---|---|---|---|---|---|---|---|---|---|
| Hospitalization |
Mechanical ventilation |
Death |
|||||||
| OR | 95% CI | P-value | OR | 95% CI | P-value | OR | 95% CI | P-value | |
| BMI category† (n = 1190) | 0.41 | 0.77 | 0.34 | ||||||
| Normal weight | 1 | ― | ― | 1 | ― | ― | 1 | ― | ― |
| Underweight | 1.10 | 0.50–2.41 | 0.81 | 0.92 | 0.52–1.62 | 0.78 | 0.61 | 0.31–1.20 | 0.15 |
| Excess weight | 0.81 | 0.57–1.14 | 0.23 | 0.90 | 0.67–1.19 | 0.47 | 0.88 | 0.63–1.23 | 0.47 |
| Obesity‡ (n = 1194) | 0.83 | 0.59–1.16 | 0.28 | 1.11 | 0.84–1.47 | 0.44 | 0.92 | 0.66–1.28 | 0.63 |
| Unintentional weight loss (n = 1051) | 0.97 | 0.69–1.36 | 0.87 | 1.11 | 0.83–1.47 | 0.47 | 0.78 | 0.55–1.10 | 0.17 |
BMI, body mass index; CI, confidence interval; OR, odds ratio
Analyses adjusted for age, sex, ethnicity, federal unit, and diagnoses of hypertension, diabetes, cardiovascular diseases, chronic obstructive pulmonary disease, and asthma/other respiratory diseases
Classified using World Health Organization category for adults and Lipschitz for the elderly (age ≥65 y): Having excessive body weight was considered BMI ≥25.0 kg/m² for adults and BMI >27.0 kg/m² for the elderly.
Classified according to World Health Organization for all individuals (BMI ≥30.0 kg/m²). Unintentional weight loss: Loss of >5% of usual body weight in previous 6 mo without any specific reason or known cause.