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Table 3 The persistence of obesity in British children with and without intellectual disability

From: Obesity in British children with and without intellectual disability: cohort study

Time period Group Overall prevalence (with 95% CI) of persistent obesity (obese at time 1 and time 2) Relative risk (with 95 % CI and p) of obesity at time 2 if obese at time 1
Age 5 to 7 ID 7.6 % (4.8–10.4 %) 5.69*** (3.99–8.91)
  Not ID 8.3 % (7.8–8.8 %) 13.01*** (11.92–14.20)
Age 5 to 11 ID 11.2 % (8.3–14.1 %) 3.11*** (2.45–3.95)
  Not ID 8.2 % (7.7–8.6 %) 4.94*** (4.68–5.21)
Age 7 to 11 ID 11.6 % (8.1–15.1 %) 3.06*** (2.34–4.00)
  Not ID 10.6 % (10.0–11.1 %) 7.28*** (6.88–7.71)
  1. Relative risks in bold indicate medium or large effect size
  2. ID intellectual disability, p probability, CI confidence interval
  3. *** p < 0.001