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. Author manuscript; available in PMC: 2018 Jun 30.
Published in final edited form as: Cancer Epidemiol. 2017 Oct;50(Pt B):214–220. doi: 10.1016/j.canep.2017.07.006

Table 2b.

Comparison of BRFSS estimates with Sample Unweighted Proportions, RDS-1 and RDS-2 Estimates.

Estimate (95% CI)

Unweighted proportion RDS-1 RDS-2 2012 BRFSS







BMI

 underweight 2.7 2.9 (1.2–5.2) 3.1 (0.07–5.25) 2.9 (1.9–4.0)
 normal weight 36.2 37.2 (31.0–43.2) 36.8 (30.50–43.16) 35.6 (32.8–38.4)
 overweight 28.9 29.0 (23.2–35.2) 29.1 (23.46–34.77) 32.4 (29.6–35.2)
 obese 31.7 30.9 (25.3–37.1) 31.0 (25.13–36.93) 29.1 (26.3–31.9)

Smoking Status

 current smoker 19.4 19.6 (14.3–24.7) 20.5 (14.69–25.8) 25.8 (23.1–28.5)
 former smoker 15.9 15.5 (10.8–21.9) 16.1 (11.19–20.95) 13.5 (11.6–15.4)
 never smoked 64.7 64.9 (57.5–71.6) 63.7 (56.37–71.00) 60.7 (57.8–63.6)

Education

 Less than HS 9.3 10.6 (6.8–15.6) 7.0 (3.54–10.53) 20.5 (17.6–23.3)
 HS or GED 28.5 30.3 (23.7–35.6) 33.0 (26.41–39.67) 33.9 (31.3–36.5)
 Some Post HS 41.3 41.4 (34.6–49.4) 39.9 (32.70–47.00) 19.6 (17.4–21.8)
 College 20.9 17.8 (12.2–23.6) 20.1 (15.97–24.18) 26.0 (23.6–28.4)

Income

 <$15,000 23.9 29.5 (21.8–36.6) 25.9 (18.78–32.94) 20.3 (17.7–23.2)
 $15,000–$34,999 25.0 26.3 (20.8–32.2) 26.5 (20.2–32.80) 35.9 (32.9–39.1)
 $35,000–$49,999 15.9 15.3 (10.5–20.7) 15.6 (9.64–21.55) 14.3 (12.3–16.6)
 $50,000–$74,999 17.1 14 (10.1–18.6) 14.7 (9.37–20.64) 13.1 (11.2–15.2)
 $75,000+ 18.1 15 (10.2–20.7) 17.3 (13.38–21.29) 16.4 (14.3–18.7)