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. 2023 Sep 15;12(11):e230115. doi: 10.57264/cer-2023-0115

Table 5. . Bone fractures avoided (per 1000 patients), QALYs gained and total cost per patient with weekly RIS-GR versus weekly ALN.

Fractures avoided with weekly risedronate GR vs weekly alendronate (per 1000 patients)
Treatment duration   1 year 2 years 3 years 4 years 5 years Total
Risedronate GR fractures Mean 26 51 71 96 119 363
Minimum 20 43 61 83 104 312
Maximum 32 60 82 109 135 418
Alendronate fractures Mean 33 59 87 118 145 442
Minimum 26 51 76 104 129 387
Maximum 40 69 99 131 161 500
Bone fractures avoided Mean -7 -8 -16 -22 -26 -79
Minimum -6 -7 -15 -21 -25 -75
Maximum -8 -9 -17 -23 -26 -82
QALYs gained per patient with weekly risedronate GR vs weekly alendronate
Treatment duration   1 year 2 years 3 years 4 years 5 years Total
QALYs with weekly RIS-GR Mean 0.7679 0.7587 0.7546 0.7496 0.7445 3.7753
Minimum 0.6910 0.6833 0.6800 0.6760 0.6719 3.4022
Maximum 0.8483 0.8374 0.8325 0.8263 0.8200 4.1645
QALYs with weekly ALN Mean 0.7669 0.7574 0.7522 0.7463 0.7406 3.7634
Minimum 0.6902 0.6823 0.6780 0.6732 0.6686 3.3924
Maximum 0.8470 0.8359 0.8296 0.8225 0.8155 4.1504
QALYs gained with RIS-GR Mean 0.0010 0.0012 0.0024 0.0033 0.0039 0.0119
Minimum 0.0008 0.0010 0.0020 0.0028 0.0033 0.0098
Maximum 0.0013 0.0015 0.0029 0.0039 0.0045 0.0140
Total cost per patient with weekly risedronate GR vs weekly alendronate
Treatment duration   1 year 2 years 3 years 4 years 5 years Total
Risedronate GR Mean 281.32 € 441.21 € 569.19 € 740.06 € 909.01 € 2940.80 €
Minimum 109.76 € 119.03 € 129.62 € 154.33 € 182.47 € 695.20 €
Maximum 627.99 € 1064.56 € 1407.87 € 1849.51 € 2282.05 € 7231.97 €
Alendronate Mean 834.39 € 850.07 € 940.77 € 1080.22 € 1229.98 € 4935.43 €
Minimum 597.37 € 458.45 € 388.72 € 350.36 € 337.35 € 2132.26 €
Maximum 1282.44 € 1582.63 € 1964.78 € 2428.76 € 2878.02 € 10,136.63 €
Savings with RIS-GR Mean -553.07 € -408.86 € -371.57 € -340.16 € -320.97 € -1994.63 €
Minimum -487.61 € -339.43 € -259.10 € -196.04 € -154.89 € -1437.06 €
Maximum -654.45 € -518.07 € -556.91 € -579.26 € -595.97 € -2904.66 €

Bold numbers represent the final results.

ALN: Weekly Alendronate 70 mg tablets; QALYs: Quality-adjusted life-years; RIS-GR: Weekly risedronate 35 mg gastro-resistant tablets.