Table 2 Risk of diabetic retinopathy and complications after phentermine treatment.

From: Lower incidence of diabetic retinopathy and worsening events after phentermine assisted weight loss across a large U.S. cohort

Cohorts

Patients in cohort

Patients with outcome

Risk ratio (95% CI)

P value

Mild non-proliferative diabetic retinopathy

 Phentermine

26,370

152

0.621 (0.508, 0.760)

<0.001

 Overweight

26,406

245

Moderate non-proliferative diabetic retinopathy

 Phentermine

26,551

51

0.567 (0.402, 0.799)

0.001

 Overweight

26,559

90

Severe non-proliferative diabetic retinopathy

 Phentermine

26,577

11

0.479 (0.233, 0.981)

0.040

 Overweight

26,591

23

Proliferative diabetic retinopathy

 Phentermine

26,514

50

0.451 (0.323, 0.629)

<0.001

 Overweight

26,531

111

Diabetic retinopathy with macular edema

 Phentermine

26,261

119

0.462 (0.372, 0.573)

<0.001

 Overweight

26,276

258

Vitreous hemorrhage

 Phentermine

26,561

17

0.347 (0.200, 0.602)

<0.001

 Overweight

26,564

49

Intravitreal anti-VEGF injection

 Phentermine

26,556

36

0.530 (0.354, 0.793)

0.002

 Overweight

26,563

68

Pars plana vitrectomy

 Phentermine

26,593

11

0.786 (0.357, 1.731)

0.549

 Overweight

26,595

14

Pan retinal photocoagulation

 Phentermine

26,584

12

0.546 (0.270, 1.102)

0.086

 Overweight

26,590

22

Tractional retinal detachment

 Phentermine

26,598

10

0.588 (0.269, 1.284)

0.178

 Overweight

26,589

17

  1. Supplementary Table 1. Codes utilized in cohort design, propensity score matching, and outcome analysis.