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Table 2 Number of patients and risk of acute care use for hypertension-related disease

From: Association of bariatric surgery with risk of acute care use for hypertension-related disease in obese adults: population-based self-controlled case series study

Time interval and outcome Number of patients Risk, % (95% CI) aOR (95% CI)a P value
  (n = 980)    
13–24 months before bariatric surgery
 ED visit or hospitalizationb 174 17.8 (15.4–20.2) Reference
  ED visitc 130 13.3 (11.1–15.4) Reference
  Hospitalizationd 44 4.5 (3.2–5.8) Reference
1–12 months before bariatric surgery
 ED visit or hospitalizationb 178 18.2 (15.7–20.6) 1.02 (0.83–1.27) 0.83
  ED visitc 130 13.3 (11.1–15.4) 1.00 (0.78–1.28) 0.99
  Hospitalizationd 50 5.1 (3.7–6.5) 1.14 (0.76–1.73) 0.53
0–12 months after bariatric surgery
 ED visit or hospitalizationb 103 10.5 (8.6–12.4) 0.58 (0.45–0.74) <0.0001
  ED visitc 91 9.3 (7.5–11.1) 0.69 (0.53–0.91) 0.008
  Hospitalizationd 14 1.4 (0.7–2.2) 0.31 (0.17–0.57) <0.0001
13–24 months after bariatric surgery
 ED visit or hospitalizationb 126 12.9 (10.8–15.0) 0.71 (0.57–0.90) 0.005
  ED visitc 100 10.2 (8.3–12.1) 0.76 (0.58–0.99) 0.04
  Hospitalizationd 30 3.1 (2.0–4.1) 0.68 (0.42–1.08) 0.10
  1. CI confidence interval, aOR adjusted odds ratio, ED emergency department
  2. aAdjusted odds ratios are for each 12-month period versus the reference period (i.e., 13–24 months before the index bariatric surgery), as calculated with conditional logistic regression
  3. bAt least one acute care use (ED visit or unplanned hospitalization) for HTN-related disease
  4. cAt least one ED visit for HTN-related disease, not resulting in hospitalization
  5. dAt least one unplanned hospitalization for HTN-related disease