Table 3.
ICH studies reporting associations between BMI and mortality.
| First author | Follow-up | Analyses by sex | BMI categories (kg/m2) | Risk of mortality (OR(95%CI)) | |
|---|---|---|---|---|---|
| Univariate analysis | Multivariate analysis | ||||
| Western population | |||||
| V. Javalkar | In-hospital | — | NR | — | 0.64 (0.59–0.69) |
| H. Hoffman | In-hospital | — | Nonobese (<30) | — | REF |
| — | Obese (30 to <40) | — | 0.62 (0.56–0.69) | ||
| — | Morbidly obese (≥40) | — | 0.76 (0.66–0.88) | ||
| H. Hoffman | 30-day | — | Nonobese (<30) | — | REF |
| — | Obese (30 to <40) | — | 0.624(0.381 – 1.022) | ||
| — | Morbidly obese (≥40) | — | 2.175(1.034 – 4.578) | ||
| S. R. Persaud | In-hospital | — | Nonobese (<30) | REF | REF |
| — | Obese (30 to <40) | 0.60 (0.55–0.65) | 0.69 (0.62–0.76) | ||
| — | Morbidly obese (≥40) | 0.77 (0.70–0.86) | 0.85 (0.74–0.97) | ||
| N. S. Dangayach | 90-day | — | <25 | REF | — |
| — | ≥25 | 0.70 (0.39, 1.26) | — | ||
| Asian population | |||||
| W. Sun | 12-month | — | Underweight (<18.5) | 0.97 (0.67–1.41) | 0.78 (0.54–1.15) |
| — | Normal weight (18.5 to <24) | REF | REF | ||
| — | Overweight (24 to <28) | 0.8 (0.62–1.03) | 0.83 (0.63–1.08) | ||
| — | Obese (≥28) | 0.75 (0.59–0.95) | 0.71 (0.56–0.91) | ||
| B. J. Kim | 30-day | — | Underweight (<18.5) | — | 0.75 (0.26–2.11) |
| — | Normal weight (18.5 to <23) | — | REF | ||
| — | Overweight (23 to <25) | — | 0.86 (0.47–1.56) | ||
| — | Obese (≥25) | — | 0.89 (0.47–1.68) | ||
| Long-term | — | Underweight (<18.5) | — | 1.64 (1.11–2.40) | |
| — | Normal weight (18.5 to <23) | — | REF | ||
| — | Overweight (23 to <25) | — | 0.69 (0.49–0.96) | ||
| — | Obese (≥25) | — | 0.61 (0.43–0.88) | ||
| I. Oki | 17.3-year | Both | <18.5 | — | 1.23 (0.46, 3.29) |
| 18.5 to <23.0 | — | 1.26 (0.67, 2.37) | |||
| 23.0 to <25.0 | — | REF | |||
| 25.0 to <30.0 | — | 0.83 (0.36, 1.91) | |||
| ≥30.0 | — | 2.31 (0.65, 8.26) | |||
| Men | <18.5 | — | 1.00 (0.24, 4.12) | ||
| 18.5 to <23.0 | — | 1.37 (0.55, 3.40) | |||
| 23.0 to <25.0 | — | REF | |||
| 25.0 to <30.0 | — | 1.36 (0.44, 4.23) | |||
| ≥30.0 | — | 6.61 (0.79, 55.65) | |||
| Women | <18.5 | — | 1.55 (0.39, 6.24) | ||
| 18.5 to <23.0 | — | 1.19 (0.48, 2.95) | |||
| 23.0 to <25.0 | — | REF | |||
| 25.0 to <30.0 | — | 0.50 (0.15, 1.72) | |||
| ≥30.0 | — | 1.47 (0.30, 7.25) | |||
| Z. Cao | In-hospital | — | Underweight (<18.5) | 1.493 (1.216–1.833) | 2.057 (1.193–3.550) |
| — | Normal weight (18.5 to <23) | REF | Reference | ||
| — | Overweight (23 to <25) | 0.861 (0.768–0.966) | 0.887 (0.647–1.216) | ||
| — | Obese (≥25) | 1.032 (0.926–1.151) | 1.141 (0.846–1.539) | ||
| N. Yoshida | In-hospital | — | Underweight (<18.5) | — | 1.26 (1.22–1.31) |
| — | Normal weight (18.5 to <23) | — | REF | ||
| — | Overweight (23 to <25) | — | 0.87 (0.40–0.90) | ||
| — | Obese I (25.0 to <30) | — | 0.93 (0.90–0.97) | ||
| — | Obese II (>30) | — | 1.00 (0.94–1.07) | ||
NR, not reported; REF, reference.