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Adherence Calculator
PDF Adherence Calculator

Formula for calculating adherence percentage:

Total # of pills provided at previous visit - # pills remaining
---------------------------------------------------------------------- X 100  
# pills instructed to take daily x # days since last visit

 

Table for determining adherence percentage: 
(Assuming monthly visits with a window of 7 days; 1 pill qd; 33 pills dispensed) 

# of Pills # of Days Since Last Visit
Remaining 27 28 29 30 31 32 33
0             100
1           100 97
2         100 97 94
3       100 97 94 91
4     100 97 94 91 89
5   100 97 94 91 89 85
6 100 97 94 91 89 85 82
7 96 93 90 87 84 81 79
8 93 89 86 83 81 78 76
9 89 86 83 80 77 75 73
10 85 82 79 77 74 72 70
33 0 0 0 0 0 0 0

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