. Author manuscript; available in PMC: 2016 May 4.

Published in final edited form as: JAMA. 2013 Jan 2;309(1):71–82. doi: 10.1001/jama.2012.113905

Table 1.

Summary Random-Effects Hazard Ratios (HRs) of All-Cause Mortality for Overweight and Obesity Relative to Normal Weight

	Self-reported or Measured Height and Weight			Height and Weight

				Measured			Self-reported

	No. of HRs	Summary HR (95% CI)	I², %	No. of HRs	Summary HR (95% CI)	I², %	No. of HRs	Summary HR (95% CI)	I², %
BMI of 25–<30
All ages	140	0.94 (0.91–0.96)^a	85.0	89	0.93 (0.89–0.95)^a	75.8	51	0.96 (0.92–1.00)^a	90.4

Mixed ages	107	0.95 (0.92–0.98)^a	86.8	67	0.93 (0.89–0.96)^a	79.6	40	0.98 (0.93–1.03)^a	90.7

Age ≥65 y only	33	0.90 (0.86–0.94)^a	51.2	22	0.90 (0.84–0.95)	31.2	11	0.90 (0.84–0.96)^a	71.0

BMI of ≥30
All ages	84	1.18 (1.12–1.25)^a	86.7	56	1.13 (1.06–1.19)^a	73.4	28	1.29 (1.18–1.41)^a	89.7

Mixed ages	63	1.23 (1.16–1.31)^a	87.2	41	1.16 (1.10–1.24)^a	74.6	22	1.36 (1.25–1.48)^a	86.1

Age ≥65 y only	21	1.03 (0.94–1.12)^a	61.5	15	0.98 (0.86–1.12)^a	61.1	6	1.09 (0.96–1.23)^a	67.0

BMI of 30–<35
All ages	53	0.95 (0.88–1.01)^a	86.8	30	0.94 (0.86–1.03)^a	80.5	23	0.95 (0.85–1.06)^a	90.1

Mixed ages	42	0.96 (0.89–1.04)^a	87.7	24	0.95 (0.86–1.06)^a	83.2	18	0.97 (0.87–1.09)^a	90.0

Age ≥65 y only	11	0.87 (0.72–1.05)^a	76.3	6	0.89 (0.71–1.11)	56.2	5	0.83 (0.58–1.20)^a	85.7

BMI of ≥35
All ages	53	1.29 (1.18–1.41)^a	81.7	30	1.25 (1.13–1.39)^a	65.4	23	1.34 (1.16–1.55)^a	88.3

Mixed ages	42	1.32 (1.19–1.45)^a	82.8	24	1.28 (1.14–1.44)^a	68.9	18	1.35 (1.16–1.58)^a	89.0

Age ≥65 only	11	1.20 (0.94–1.52)^a	70.6	6	1.10 (0.89–1.34)	25.1	5	1.29 (0.77–2.17)^a	85.2

Abbreviation: BMI, body mass index (calculated as weight in kilograms divided by height in meters squared).

Indicates significant heterogeneity (P<.05).