Table 1.

Group characteristics in 2009–2010

CHARACTERISTICSGROUP WITH IDDGROUP WITH NO IDD
No. of patients28 44928 347
Mean (SD) age, y50.09 (6.54)50.07 (6.52)
Female sex, %45.945.8
Mean (SD) morbidity*5.16 (3.57)5.14 (3.56)
Neighborhood income,* %
  • 1 (Low)33.233.6
  • 221.821.5
  • 317.017.0
  • 415.415.4
  • 5 (High)12.612.5
Mean (SD) rurality*14.84 (19.76)14.76 (19.88)
  • ADGs—Aggregate Diagnostic Groups, IDD—intellectual and developmental disabilities.

  • * Morbidity is the number of ADGs (Johns Hopkins ACG System, version 10), neighbourhood income is neighbourhood income quintile, and rurality is the 2008 Rurality Index for Ontario score.8