Association between industry payments and prescriptions of long-acting insulin: An observational study with propensity score matching
Fig 1
Association between the receipt of industry payments and claims of long-acting insulin by the number of meals.
Negative binomial regression model was employed to adjust for physicians’ sex, years in practice, specialty, and medical school attended for (A) number of claims, (B) cost paid for all claims, and (C) costs per claim of long-acting insulin in 2017 by the number of meals received in 2016.