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. Author manuscript; available in PMC: 2022 Feb 10.
Published in final edited form as: Sci Total Environ. 2020 Oct 3;755(Pt 2):142524. doi: 10.1016/j.scitotenv.2020.142524

Table 3.

The percent change in cause-specific admissions among all Medicare beneficiaries, and among Medicare beneficiaries with CDBD, associated with a high pollution day.

Admission cause Percent increase in admissions rate (95% confidence interval)
Medicare beneficiaries with CDBD All Medicare beneficiaries
Cerebral degenerations (ICD 9: 331) 2.57% (2.45%; 2.68%) *
Pneumonia NOS (ICD 9: 486) 3.22% (3.09%; 3.34%) * 2.14% (2.02%: 2.25%) *
UTI (ICD 9: 559) 3.45% (3.34%; 3.57%) * 2.82% (2.71%: 2.94%) *
Hip fractures (ICD 9: 820) 0.13% (0.01%; 0.25%) * −0.02% (−0.14%: 0.09%)

Table 3 shows the percent change in cause-specific admissions rates in high PM2.5 pollution days, compared to low pollution days, among all Medicare enrollees and specifically among people with CDBD. Each model was fit to the matched sample and the model was adjusted for temperature and season. We identified the four most common causes of admission among people with CDBD, and then analyzed the association between high pollution day and these cause specific admissions among all people, and in a subgroup of people with CDBD.

*

p<0.05

ICD 9: International Classification and Disease, Ninth Revision; CDBD= chronic debilitating brain disease; NOS= no organism specified; UTI= urinary tract infection.