TABLE 3—
Prevalence of Sharing in Quantitative Survey Studies in Systematic Review of Nonrecreational Prescription Medication Sharing
| Prevalence of Sharing |
||||||
| Studies | Sample Size, No. | Response Rate, % | Borrowing, No. (%) | Lending, No. (%) | Lending or Borrowing, No. (%)a | Recall Period |
| Hogan et al.17 | 114 | NR | 20 (17.5) | 7 (6.1) | NR | 1 y |
| Thompson and Stewart19 | 204 | 87 | 14 (6.9) | 26 (12.7) | NR | Ever |
| Daniel et al.1 | 1568 | 52 | 212 (13.5) | 171 (10.9) | 210 (13.4) | Ever |
| Sorensen et al.20 | 1086 | NR | NR | NR | 49 (5) | NR |
| Goldsworthy et al.22 | 700 | NR | 188 (26.9) | 160 (22.9) | 236 (33.7) | 1 y |
| Petersen et al.23 | 26 289 | 72.2 | 6086 (23.2) | 5065 (19.3) | 7272 (27.7) | Ever |
| Goldsworthy and Mayhorn24,b | 594 | NR | 115 (19.4) | 122 (20.5) | NR | 1 y |
| Mayhorn and Goldsworthy25 | 2773 | NR | 594 (21.4) | 624 (22.5) | NR | 1 y |
| Ali et al.26 | 481 | 90.7 | NR | NR | 261 (54.3) | NR |
| Goulding et al.27 | 343 | NR | 89 (26) | 70 (20) | 117 (34.1) | Ever |
| Auta et al.28 | 730 | 81.6 | 379 (51.9) | 127 (17.4) | 385 (52.7) | 1 y |
| Goebel et al.29 | 343 | NR | NR | NR | 56 (16.3) | NR |
| Ward et al.30 | 641 | 80 | 116 (18) | NR | NR | Ever |
| Ellis et al.31 | 226 | 65 | 10 (5) | 12 (6) | NR | NR |
| Kheir et al.32 | 49 | 18 | NR | NR | NR | NR |
Note. NR = not reported.
a
If the rate of borrowing or lending was not provided by the authors, we calculated as No. of borrowers or lenders = No. lenders + No. of borrowers − (No. of both lenders and borrowers).
b
Part of larger study by Mayhorn and Goldsworthy.25