TABLE 2

Standardized Percentages of Children With Diagnosis of Hypertension

Demographic Factor, n = 12 138Standardized Percentage (95% CI)Overall Within-Factor Difference, P
Age category, y<.001
 3–920.3 (19.4–21.1)
 10–1429.6 (28.2–31.0)
 15–1827.2 (23.4–31.1)
Weight, %<.001
 Normal18.2 (17.2–19.1)
 Overweight23.1 (21.4–24.8)
 Obese28.8 (27.6–30.0)
Height, %<.001
 Not tall23.0 (22.3–23.7)
 Tall31.7 (27.2–36.1)
Sex, %<.001
 Female20.7 (19.8–21.6)
 Male26.2 (25.2–27.2)
Stage 2 range BP readings, %<.001
 No19.3 (18.4–20.2)
 Yes27.9 (26.8–29.1)
No. of abnormal BP readings >3, %<.001
 No extra readings18.0 (17.2–18.9)
 1 extra reading24.9 (23.5–26.4)
 2 extra readings30.9 (28.5–26.4)
 ≥3 extra readings37.1 (34.7–39.5)
  • All estimates are standardized (adjusted). Models using logistic regression and predictive margins for standardization included age, weight, height, sex, presence of BP readings in stage 2 range, and number of abnormal BP readings >3. All models also include clinical practice site as a covariate because variation across sites in the rate of diagnosis and the characteristics of patients induces confounding by practice. Estimates therefore can be interpreted as the adjusted percentage of children who received a diagnosis of hypertension within practice sites (and averaged across practice sites), controlling for their individual differences.