Table 2

Descriptive data on people in the first hospitalisation with a respiratory system disease, comparing those with intellectual disability (ID) and age-matched and gender-matched non-ID controls

VariablesMean±SD/number (%)p Value *
Adults with ID (n=437)Non-ID adults (n=1748)
Age at admission (years old)54.59±19.8254.57±19.81
Gender
 Female232 (53.09)928 (53.09)
 Male205 (46.91)820 (46.91)
Length of first hospital stay (days)11.72±23.869.08±15.900.027†
Ethnicity
 White297 (67.96)1104 (63.16)<0.001†
 Black45 (10.30)291 (16.65)
 South Asian7 (1.60)56 (3.20)
 East Asian9 (2.06)47 (2.69)
 Others/mixed/unknown79 (18.08)250 (14.30)
Discharge method
 Clinical advice/clinical consent397 (90.85)1619 (92.62)<0.001†
 Self-discharged/others10 (2.29)26 (1.49)
 Death30 (6.86)103 (5.89)
Number of physical comorbidities
 0–2135 (30.89)658 (37.64)<0.001†
 3–4124 (28.38)442 (25.29)
 5 or more178 (40.73)648 (37.07)
  • *Dependent t-tests for continuous variables and McNemar's tests for categorical variables.

  • †Statistical significance.

  • –, Variables used for matching in study design.