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. Author manuscript; available in PMC: 2018 Dec 1.
Published in final edited form as: J Am Geriatr Soc. 2017 Nov 2;65(12):2580–2586. doi: 10.1111/jgs.15066

Table 2.

Rates of aspiration and non-aspiration pneumonia according to antipsychotic exposure status.

Outcome No Antipsychotic Exposure
n (%)
(n = 136,153)		 Antipsychotic Exposure
n (%)
(n = 10,399)		 Unadjusted Odds Ratio
[95% CI]
(n = 146,552)		 Adjusted Odds Ratioa
[95% CI]
(n = 146,552)		 Propensity Matched Odds Ratiob
[95% CI]
(n = 20,406)
Aspiration pneumonia 430 (0.3) 127 (1.2) 3.9 [3.2–4.8] 1.5 [1.2–1.9] 1.4 [1.1–1.8]
Non-aspiration pneumonia 956 (0.7) 175 (1.7) 2.4 [2.1–2.9] 1.1 [0.9–1.3] 1.0 [0.8–1.2]
a

Adjusted for all variables listed in Table 1, plus the Healthcare Cost and Utilization Project comorbidities,24 using a multivariable GEE to take into account dependency of the data due to repeated hospitalizations.

b

Matched on propensity score and analyzed using a multivariable GEE, controlling for all significantly imbalanced baseline characteristics after matching, as demonstrated in Table 3 (using a standardized difference (absolute value) >0.1).