Comparing side of IE and drug use
| Right IE | Left IE | IE both sides | Total | |
| Opioid Only | 47 (69%) | 17 (25%) | 4 (6%) | 68 |
| Stimulant Only | 11 (46%) | 11 (46%) | 2 (8%) | 24 |
| Total | 58 | 28 | 6 | 92 |
Relative to opioid-only users, stimulant-only users were 1.75 (95% CI 1.05 to 2.93; p=0.031) times as likely to have a left or bilateral IE, as opposed to a right IE.
Relative to opioid-only users, stimulant-only users were 1.88 (95% CI 1.05 to 3.37; p=0.034) times as likely to have a left IE, as opposed to a right IE.
IE, infective endocarditis.