. Author manuscript; available in PMC: 2019 Nov 1.

Published in final edited form as: J Knee Surg. 2018 Sep 7;31(10):928–933. doi: 10.1055/s-0038-1669915

Table 3.

Time to revision (%)

Time	Revision TKA	Cocaine	Cannabis	Opioid	SHA	Amphetamines	Alcohol
30 d	4–5%	7%	6%	3–4%	4%	5–6%	6–7%
90 d	8%	12%	11%	8%	9%	12%	12%
6 mo	16%	20%	20%	17%	19%	25%	20%
1 y	33%	36%	37%	32%	34%	42%	38%
Chi-square	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001

Abbreviations: SHA, sedatives/hypnotics/anxiolytics; TKA, total knee arthroplasty.