TABLE 2. Crude and adjusted* probabilities of refill by number of days initially supplied and acute pain condition.
| Condition | No. of days initially supplied (95% CI) |
||||
|---|---|---|---|---|---|
| 3 | 5 | 7 | 14 | 28 | |
|
Joint pain
| |||||
| Crude |
0.20 (0.18–0.23) |
0.20 (0.18–0.22) |
0.20 (0.18–0.22) |
0.18 (0.16– 0.21) |
0.12 (0.05–0.24) |
| Adjusted |
0.20 (0.17–0.22) |
0.20 (0.18–0.22) |
0.20 (0.18–0.22) |
0.18 (0.16–0.22) |
0.12 (0.05–0.25) |
|
Back pain without radiculopathy
| |||||
| Crude |
0.17 (0.16–0.19) |
0.17 (0.16–0.18) |
0.16 (0.15–0.17) |
0.15 (0.13–0.17) |
0.12 (0.09–0.17) |
| Adjusted |
0.16 (0.14–0.18) |
0.16 (0.14–0.17) |
0.15 (0.14–0.17) |
0.14 (0.12–0.16) |
0.11 (0.08–0.16) |
|
Headache
| |||||
| Crude |
0.14 (0.11–0.17) |
0.13 (0.11–0.15) |
0.12 (0.097–0.14) |
0.10 (0.07–0.15) |
0.12 (0.03–0.38) |
| Adjusted |
0.13 (0.10–0.16) |
0.12 (0.093–0.14) |
0.11 (0.086–0.14) |
0.09 (0.07–0.14) |
0.10 (0.02–0.31) |
|
Neck pain
| |||||
| Crude |
0.22 (0.18–0.25) |
0.21 (0.18–0.24) |
0.20 (0.18–0.22) |
0.17 (0.13–0.22) |
0.13 (0.06–0.26) |
| Adjusted |
0.25 (0.20–0.30) |
0.23 (0.19–0.28) |
0.22 (0.19–0.26) |
0.19 (0.14–0.25) |
0.13 (0.06–0.26) |
|
Tendonitis/Bursitis
| |||||
| Crude |
0.17 (0.12–0.22) |
0.17 (0.13–0.21) |
0.17 (0.14–0.21) |
0.18 (0.12–0.26) |
0.21 (0.07–0.48) |
| Adjusted |
0.17 (0.12–0.23) |
0.17 (0.13–0.22) |
0.18 (0.14–0.22) |
0.19 (0.12–0.27) |
0.21 (0.07–0.49) |
|
Muscular strains/Sprains
| |||||
| Crude |
0.17 (0.13–0.20) |
0.16 (0.13–0.19) |
0.15 (0.12–0.18) |
0.13 (0.07–0.21) |
0.09 (0.02–0.31) |
| Adjusted |
0.16 (0.13–0.20) |
0.16 (0.13–0.19) |
0.15 (0.12–0.18) |
0.13 (0.07–0.22) |
0.09 (0.02–0.32) |
|
Back pain with radiculopathy
| |||||
| Crude |
0.31 (0.24–0.39) |
0.33 (0.27–0.40) |
0.28 (0.21–0.35) |
0.21 (0.12–0.34) |
—† |
| Adjusted |
0.24 (0.16–0.35) |
0.27 (0.20–0.36) |
0.21 (0.14–0.30) |
0.15 (0.07–0.29) |
—† |
|
Nephrolithiasis
| |||||
| Crude |
0.21 (0.16–0.26) |
0.20 (0.16–0.25) |
0.20 (0.15–0.25) |
0.18 (0.08–0.35) |
0.15 (0.02–0.61) |
| Adjusted |
0.22 (0.15–0.31) |
0.22 (0.15–0.29) |
0.21 (0.14–0.30) |
0.19 (0.08–0.39) |
0.16 (0.02–0.65) |
|
Musculoskeletal injury
| |||||
| Crude |
0.26 (0.12–0.47) |
0.49 (0.27–0.72) |
0.37 (0.18–0.62) |
0.41 (0.13–0.77) |
—† |
| Adjusted |
0.21 (0.086–0.44) |
0.55 (0.30–0.79) |
0.41 (0.19–0.68) |
0.48 (0.15–0.84) |
—† |
|
Dental pain
| |||||
| Crude |
0.27 (0.21–0.33) |
0.23 (0.19–0.29) |
0.20 (0.14–0.28) |
0.12 (0.04–0.31) |
0.04 (0.003–0.39) |
| Adjusted | 0.27 (0.21–0.33) | 0.23 (0.18–0.29) | 0.20 (0.14–0.28) | 0.12 (0.04–0.31) | 0.04 (0.003–0.39) |
Abbreviation: CI = confidence interval.
* Adjusted for age, sex, and Charlson comorbidity score. (https://www.ncbi.nlm.nih.gov/pubmed/3558716). Probabilities calculated for the “average patient.”
† Estimate is not informative because of sparse data. Twenty-eight days’ supply estimates are outside the range of data for most conditions.