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Table 3 Comparison of health outcomes prevalence estimates by survey modality

From: Comparing methods of performing geographically targeted rural health surveillance

Health outcomes Mailed survey Phone survey In-person survey
Adults 48 responses 16 responses 70 responses
Unadjusted prevalence
 Hypertension 43.8% (29.2–58.3%) 50.0% (22.5–77.5%) 35.7% (24.2–47.2%)
 Hyperlipidemia 41.7% (27.2–56.1%) 25.0% (1.2–48.8%) 37.1% (25.5–48.7%)
 Diabetes 10.4% (1.5–19.4%) 18.8% (0.0–40.2%) 18.6% (9.2–27.9%)
 Ever asthma 12.5% (2.8–22.2%) 25.0% (1.2–48.8%) 20.0% (10.4–29.6%)
 Current asthma 6.3% (0.0–13.4%) 12.5% (0.0–30.7%) 5.7% (0.1–11.3%)
 Ever smoking 39.6% (25.2–53.9%) 68.8% (43.2–94.3%) 38.6% (26.9–50.3%)
 Current smoking 12.5% (2.8–22.2%) 31.3% (5.7–56.8%) 21.4% (11.6–31.3%)
 Obesity 39.6% (25.2–53.9%) 37.5% (10.9–64.1%) 54.3% (42.3–66.2%)
Age-adjusted prevalence
 Hypertension 31.5% (18.6–44.5%) 59.0% (26.0–92.1%) 32.4% (20.8–44.1%)
 Hyperlipidemia 34.8% (19.6–50.1%) 16.1% (5.4–26.7%) 33.2% (22.1–44.3%)
 Diabetes 8.2% (1.1–15.3%) 11.8% (0.2–23.5%) 12.9% (6.5–19.3%)
 Ever asthma 11.7% (1.8–21.7%) 15.2% (2.1–28.2%) 23.9% (12.3–35.5%)
 Current asthma 5.2% (0.0–11.1%) 6.6% (0.0–15.8%) 6.9% (0.0–13.7%)
 Ever smoking 40.3% (24.0–56.7%) 67.2% (32.8–100%) 40.1% (27.2–53.0%)
 Current smoking 14.4% (2.7–26.1%) 16.6% (5.7–27.5%) 24.8% (13.2–36.5%)
 Obesity 41.7% (25.3–58.1%) 49.6% (15.2–84.0%) 57.3% (44.3–70.4%)
  1. 95% confidence intervals in parentheses