Table 1.

Descriptives for all study variables by intellectual disability status, 2005–2017 US Multiple Cause-of-Death Mortality files (N = 32 760 741)

Variable	No intellectual disability (N = 32 738 229)	All intellectual disability (N = 22 512)	Mild/Moderate intellectual disability (N = 621)	Severe/Profound intellectual disability (N = 3765)	Unspecified intellectual disability (N = 18 126)
Age – M (SD)	73.95 (0.00)	61.10 (0.11)	63.62 (0.67)	57.17 (0.26)	61.83 (0.12)
Female	49.94%	45.44%	46.05%	45.47%	45.41%
Race-ethnicity
Non-Hispanic White	79.91%	80.55%	83.74%	80.53%	80.45%
Non-Hispanic Black	11.47%	12.68%	9.50%	12.70%	12.79%
Hispanic	5.88%	5.10%	4.67%	5.23%	5.09%
Non-Hispanic Other	2.74%	1.67%	2.09%	1.54%	1.68%
Year – M (SD)	2011.18 (0.00)	2010.42 (0.02)	2010.55 (0.14)	2010.39 (0.06)	2010.42 (0.03)
Cause of death
Heart diseases (ICD-10 codes: 100–109, 111,113 and 120–151)	24.61%	15.61%	18.36%	14.45%	15.76%
Pneumonitis due to solids and liquids (ICD-10 code: J69)	0.72%	8.86%	4.35%	13.12%	8.13%
Influenza and pneumonia (ICD-10 codes: J09-J18)	2.18%	8.71%	3.06%	9.85%	8.66%
Malignant neoplasms (ICD-10 codes: C00-C97)	22.92%	7.12%	11.11%	4.89%	7.45%
Dementia/Alzheimer’s (ICD-10 codes: F03 and G30)	7.37%	5.07%	5.96%	2.12%	5.65%
Choking – aspiration, ingestion or inhalation of gastric contents, food or other objects (ICD-10 codes: W78-W80)	0.18%	4.68%	3.86%	5.44%	4.55%
Cerebrovascular diseases (CVA) (ICD-10 codes: 160–169)	5.36%	3.24%	3.54%	1.70%	3.55%
Genitourinary diseases – nephritis, nephrotic syndrome and nephrosis; urinary tract infection (ICD-10 codes: N00–N07, NI7–N19, N25–27 and N39)	2.37%	3.16%	2.25%	2.84%	3.25%
Diabetes mellitus (ICD-10 codes: E10–E14)	2.96%	3.07%	7.41%	1.49%	3.25%
Chronic lower respiratory diseases (CLRD) (ICD-10 codes: J40–J47)	5.65%	3.04%	4.67%	2.34%	3.13%
Unknown/unspecified (No UCOD, R-codes)	1.30%	4.63%	2.90%	6.27%	4.35%

Percentages unless otherwise specified.