From: Valvular regurgitation and surgery associated with fenfluramine use: an analysis of 5743 individuals
 | Mitral regurgitation at baseline | ||||
---|---|---|---|---|---|
 | None | Trace | Mild | Moderate | Severe |
Total | 1804 | 3011 | 624 | 253 | 51 |
PHTN present (n) | 12 | 59 | 36 | 32 | 11 |
PHTN absent (n) | 1792 | 2952 | 588 | 221 | 40 |
PHTN (%) | 0.67 | 1.96 | 5.77 | 12.65 | 21.57 |
OR for PHTN | 1 | 2.7 (1.4–5.0) | 7.6 (3.9–15) | 15 (7.4–30) | 28 (12–69) |