an increasing trendP = 0.546
After ST policies went into effect, the trend decreased in the number of pregabalin prescriptions in the Medicare plan (−16.2, 95% CI –37.8 to 5.5, P = 0.143), and had an increasing trend after the ST policy was lifted (+8.2 prescriptions, 95% CI –18.4 to 34.7, P = 0.546).