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. Author manuscript; available in PMC: 2023 May 1.
Published in final edited form as: J Intellect Disabil Res. 2022 Feb 21;66(5):454–470. doi: 10.1111/jir.12926

Table 3:

Logistic regression analysis of Down syndrome as underlying cause of death, 2005–2017 US Multiple Cause of Death files, n=22,747

Model 1 Model 2
OR 95% CI OR 95% CI
Sociodemographic Characteristics
Age (ref: 18–29)
 30–39 0.84 (0.69, 1.02) 0.81* (0.66, 0.99)
 40–49 0.96 (0.81, 1.14) 0.96 (0.80, 1.14)
 50–59 0.99 (0.84, 1.17) 0.99 (0.83, 1.17)
 60–69 1.01 (0.85, 1.20) 0.99 (0.83, 1.18)
 70–103 0.51*** (0.42, 0.64) 0.54*** (0.44, 0.68)
Female 0.99 (0.93, 1.05) 0.99 (0.93, 1.05)
Race-ethnicity (ref: White)
 Black 1.23*** (1.10, 1.37) 1.24*** (1.11, 1.39)
 Hispanic 1.10 (0.98, 1.25) 1.15* (1.02, 1.30)
 Other 1.22 (0.96, 1.53) 1.20 (0.95, 1.53)
Education (ref: 0–8 years)
 9+ years 0.98 (0.92, 1.05) 0.97 (0.90, 1.04)
 Missing 0.96 (0.88, 1.05) 0.98 (0.89, 1.08)
Comorbidities
Number of comorbidities (ref: 1)
2 0.49*** (0.45, 0.54) 0.48*** (0.44, 0.53)
3 0.29*** (0.26, 0.32) 0.28*** (0.25, 0.31)
4–13 0.13*** (0.12, 0.15) 0.12*** (0.10, 0.13)
Alzheimer’s disease/Unspecified dementia 0.86*** (0.80, 0.93) 0.67** (0.52, 0.86)
Heart disease 0.93* (0.86, 1.00) 0.91* (0.84, 0.98)
Influenza/pneumonia 3.83*** (3.53, 4.17) 4.10*** (3.76, 4.47)
Pneumonitis 0.98 (0.90, 1.06) 0.94 (0.86, 1.03)
Cerebrovascular diseases 0.38*** (0.33, 0.45) 0.37*** (0.32, 0.43)
Respiratory disease 1.50*** (1.37, 1.63) 1.57*** (1.44, 1.72)
Genitourinary diseases 0.99 (0.88, 1.11) 0.99 (0.88, 1.11)
Choking 1.04 (0.90, 1.18) 1.05 (0.92, 1.21)
Congenital heart defect 1.55*** (1.31, 1.83) 1.51*** (1.27, 1.79)
Malignant neoplasms 0.06*** (0.05, 0.09) 0.06*** (0.04, 0.09)
Non-specific conditions (R-code) 2.40*** (2.23, 2.58) 2.50*** (2.32, 2.70)
Cerebral palsy 0.54** (0.36, 0.81) 0.53** (0.35, 0.79)
Intellectual disability 1.52*** (1.33, 1.75) 1.51*** (1.31, 1.74)
Death context and processing
Place of death (ref: Hospital inpatient)
 Hospital outpatient/ER/DOA 1.09 (0.95, 1.25) 1.09 (0.94, 1.25)
 Home 1.23*** (1.13, 1.34) 1.26*** (1.15, 1.38)
 Nursing home 1.32*** (1.22, 1.43) 1.37*** (1.26, 1.49)
 Other/Unknown 1.21** (1.09, 1.35) 1.21*** (1.08, 1.36)
Autopsy (ref: No)
 Yes 0.65*** (0.55, 0.78) 0.61*** (0.51, 0.73)
 Unknown 1.11 (0.99, 1.24) 1.11 (0.99, 1.25)
Year of death (ref: 2005)
 2006 0.82* (0.71, 0.97) 1.03 (0.86, 1.23)
 2007 0.80** (0.68, 0.93) 1.08 (0.91, 1.30)
 2008 0.87 (0.75, 1.01) 1.14 (0.96, 1.36)
 2009 0.71*** (0.61, 0.82) 1.01 (0.85, 1.20)
 2010 0.75*** (0.65, 0.88) 1.07 (0.89, 1.29)
 2011 1.03 (0.89, 1.20) 1.08 (0.90, 1.29)
 2012 1.08 (0.93, 1.25) 1.08 (0.90, 1.29)
 2013 1.13 (0.97, 1.31) 1.21* (1.01, 1.44)
 2014 1.96*** (1.68, 2.28) 1.18 (0.99, 1.41)
 2015 2.36*** (2.03, 2.74) 1.30** (1.09, 1.56)
 2016 2.27*** (1.95, 2.63) 1.29** (1.08, 1.55)
 2017 2.22*** (1.91, 2.58) 1.16 (0.97, 1.38)
Alzheimer’s disease/Unspecified dementia
X Year of death
0.36*** (0.24, 0.53)
 2006 0.26*** (0.18. 0.39)
 2007 0.30*** (0.21, 0.44)
 2008 0.21*** (0.14, 0.31)
 2009 0.25*** (0.17, 0.37)
 2010 0.90 (0.64, 1.27)
 2011 1.07 (0.76, 1.50)
 2012 0.85 (0.60, 1.18)
 2013 6.08*** (4.26, 8.68)
 2014 8.91*** (6.15, 12.91)
 2015 6.56*** (4.63, 9.30)
 2016 10.91*** (7.59, 15.67)
 2017 1.40*** (1.12, 1.75)
Intercept 1.30* (1.05, 1.61) 1.40*** (1.12, 1.75)

Note:

*

p < .05,

**

p < .01,

***

p < .001.

Bold text = predictor accounted for > 1% of variance in outcome, sr2>.01.