. 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 2.

Summary Hazard Ratios (HRs) of All-Cause Mortality for Overweight and Obesity Relative to Normal Weight From Studies Considered Adequately Adjusted

	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	86	0.94 (0.90–0.97)^a	87.6	45	0.92 (0.88–0.96)^a	74.8	41	0.95 (0.90–1.01)^a	91.0

Mixed ages	68	0.95 (0.91–0.99)^a	89.3	34	0.93 (0.88–0.98)^a	79.2	34	0.96 (0.91–1.02)^a	91.8

Age ≥65 y only	18	0.90 (0.86–0.95)	27.9	11	0.90 (0.84–0.96)	23.4	7	0.91 (0.84–0.98)	42.9

BMI of ≥30
All ages	42	1.21 (1.12–1.31)^a	89.3	22	1.11 (1.03–1.20)^a	67.1	20	1.33 (1.21–1.47)^a	88.0

Mixed ages	33	1.26 (1.16–1.37)^a	89.7	16	1.13 (1.04–1.23)^a	66.7	17	1.39 (1.27–1.53)^a	84.3

Age ≥65 y only	9	1.05 (0.92–1.21)^a	63.9	6	1.02 (0.81–1.29)^a	73.1	3	1.08 (0.93–1.25)	39.7

BMI of 30–<35
All ages	42	0.97 (0.90–1.04)^a	83.8	21	1.00 (0.92–1.09)^a	64.2	21	0.94 (0.84–1.05)^a	89.6

Mixed ages	33	0.98 (0.91–1.06)^a	84.8	16	1.03 (0.94–1.12)^a	64.8	17	0.95 (0.85–1.07)^a	90.3

Age ≥65 y only	9	0.88 (0.69–1.12)^a	78.0	5	0.90 (0.70–1.16)^a	64.1	4	0.82 (0.46–1.47)^a	88.1

BMI of ≥35
All ages	42	1.34 (1.21–1.47)^a	81.2	21	1.32 (1.20–1.46)^a	46.6	21	1.35 (1.16–1.57)^a	88.7

Mixed ages	33	1.35 (1.22–1.50)^a	82.2	16	1.37 (1.24–1.52)	40.4	17	1.34 (1.14–1.57)^a	89.6

Age ≥65 y only	9	1.28 (0.93–1.76)^a	75.2	5	1.12 (0.89–1.43)	37.8	4	1.40 (0.64–3.07)^a	86.8

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

Indicates significant heterogeneity (P<.05).