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Table 1 Differences Between Groups in Monthly Medication Costs

From: Medication costs during an 18 month clinical trial of obesity treatment among patients encountered in primary care

  Standard Maintenance Intensified Maintenance Between-group difference p value
Month 0 266.83(79.11) 273.12(76.05) 6.29(115.47) n/a
Month 6 228.56(70.48) 241.84(66.7) 13.27(101.33) 0.45
Month 18 222.19(69.99) 275.29(78.35) 53.11(109.62) 0.31
Change: Month 6- Month 18     
Total cost −6.38(104.74) 33.46(104.68) 39.83(147.52) 0.61
Weight-related medicationsa, b −3.58(65.68) −63.36(56.01) 59.78(86.5) 0.24
Non-weight-related medicationsa, b −7.49(54.22) 54.32(67.7) 61.81(86.87) 0.76
Change: Month 0 – Month 18     
Total cost −44.64(111.98) 2.18(113.8) 46.82(160.76) n/a
Weight-related medicationsa, b −0.72(65.05) −11.51(47.14) 10.79(81.08) n/a
Non-weight-related medicationsa, b −31.06(61.04) −4.37(80.72) 26.69(102.87) n/a
  1. a Data are presented as mean (se) in 2013 U.S. dollar amounts
  2. a, b Medications for weight-related conditions are those for diabetes, hypertension, and cholesterol
  3. † P values for Month 0 and change from Month 0 to Month 18 are not applicable since these were not a priori planned comparisons (i.e., randomization occurred at month 6)