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. 2015 Jun 9;39(9):1359–1364. doi: 10.1038/ijo.2015.86

Table 3. Number needed to harm with sibutramine by cardiovascular disease risk group.

  NNHa (95% CI) at 4 months NNHa (95% CI) at 12 months
Cardiovascular disease 129 (57–360) 28 (12–77)
No cardiovascular disease 4809 (1690 to protective effect) 1749 (615 to protective effect)
a

Number needed to harm, from estimated survivor function following Cox regression with PS adjustment.