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Table 1 Demographic characteristics of the two groups at baseline (2002) and mortality during the follow-up period (up to 2015)

From: Mortality patterns and risk among older men and women with intellectual disability: a Swedish national retrospective cohort study

  Individuals with intellectual disability (n = 15,289)
n (%)
Matched control population (n = 76,445)
n (%)
Sub-sample of individuals with DS (n = 942)
n (%)
Sub-sample of individuals with ID (DS excluded) (n = 14,347)
n (%)
All individuals with ID (n = 15,289)
n (%)
Sex
 Men 486 (51.6) 7844 (54.7) 8330 (54.5) 41,650 (54.5)
 Women 456 (48.4) 6503 (45.3) 6959 (45.5) 34,795 (45.5)
Age group in 2002
 42–44 year 88 (9.3) 1720 (12) 1808 (11.8) 9040 (11.8)
 45–54 year 440 (46.7) 6044 (42.1) 6484 (42.4) 32,420 (42.4)
 55–64 year 360 (38.2) 4182 (29.2) 4542 (29.7) 22,710 (29.7)
 65–74 year 50 (5.3) 1755 (12.2) 1805 (11.8) 9025 (11.8)
 75–79 year 1 (0.1) 401 (2.8) 402 (2.6) 2010 (2.6)
 80+ year 3 (0.3) 245 (1.7) 248 (1.6) 1240 (1.6)
Mean age at death (standard deviation)* 63.5 (5.4) 72.1 (9.4) 70.7 (9.5) 76.2 (10.3)
Average years of follow-up (standard deviation)* 9.4 (4.0) 12.7 (2.7) 12.5 (2.9) 13.5 (1.7)
Number of deaths during 2002–2015 (%) 761 (80.8) 3977 (27.7) 4738 (31.0) 8364 (10.9)
Total follow-up period in person-year* 8848 181,940 190,788 1,032,245
Mortality rate during 2002–2015 (per 100,000 people)* 8600 2186 2483 810
  1. *Mean age at death, mortality rate and total follow-up period differed significantly between the two groups (p < 0.001). The groups were matched by sex, birth year and year of first hospitalisation/access to LSS services