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Table 2 Adjusted hazard ratios for all-cause mortality, by BMI category

From: Mortality risk associated with underweight: a census-linked cohort of 31,578 individuals with up to 32 years of follow-up

 

Body mass index category (kg/m2)

 

<18.5

18.5- <25

25- <30

≥30

 

HR (95%CI)

HR

HR (95% CI)

HR (95% CI)

Pooled data

Deaths (n)

121

2551

2209

813

Model 1

1.39 (1.16-1.67)

1

1.04 (0.98-1.10)

1.36 (1.26-1.48)

Model 2

1.38 (1.15-1.66)

1

1.04 (0.99-1.11)

1.38 (1.28-1.50)

Model 3

1.35 (1.12-1.62)

1

1.03 (0.98-1.10)

1.34 (1.24-1.45)

Model 4

1.40 (1.17-1.68)

1

1.03 (0.97-1.09)

1.35 (1.25-1.47)

Model 5

1.37 (1.14-1.65)

1

1.02 (0.97-1.09)

1.32 (1.22-1.43)

Measured BMI data

Deaths (n)

54

1452

1433

585

Model 1

1.16 (0.88-1.52)

1

1.02 (0.95-1.10)

1.35 (1.22-1.49)

Model 2

1.16 (0.88-1.52)

1

1.04 (0.96-1.12)

1.38 (1.25-1.53)

Model 3

1.15 (0.87-1.51)

1

1.02 (0.95-1.10)

1.33 (1.20-1.46)

Model 4

1.17 (0.89-1.54)

1

1.02 (0.95-1.10)

1.35 (1.22-1.49)

Model 5

1.16 (0.88-1.53)

1

1.01 (0.94-1.09)

1.31 (1.18-1.44)

Self-reported BMI data

Deaths (n)

67

1099

776

228

Model 1

1.64 (1.28-2.10)

1

1.06 (0.96-1.16)

1.37 (1.19-1.58)

Model 2

1.61 (1.25-2.06)

1

1.06 (0.97-1.17)

1.38 (1.19-1.59)

Model 3

1.56 (1.21-2.00)

1

1.05 (0.96-1.16)

1.34 (1.16-1.55)

Model 4

1.65 (1.28-2.11)

1

1.05 (0.95-1.15)

1.35 (1.17-1.56)

Model 5

1.59 (1.24-2.05)

1

1.04 (0.95-1.15)

1.32 (1.14-1.53)

  1. Model 1: adjusted for age, age2, sex, and study waves. Model 2: Model 1 + adjusted for smoking status. Model 3: Model 2 + adjusted for lifestyle variables: sports frequency + healthy eating. Model 4: Model 2 + adjusted for educational level. Model 5: Model 3 + Model 4.
  2. 30,547 participants (25–74 years at baseline) of the Swiss MONICA, NRP1A, SOMIPOPS and SHS 92/93.
  3. Measured BMI Data: Swiss MONICA + NRP 1A: 16,348 participants. Self-reported BMI Data: SOMIPOPS + SHS 92/93: 14,199 participants.