Characteristic | N (total = 105) | % |
---|---|---|
Number of electronic databases searched: | ||
Median | 5 | |
Interquartile range | 3–6 | |
Number of non-database techniques used: | ||
Median | 2 | |
Interquartile range | 2–3 | |
Phases of the HSSS used: | ||
1 and 2 | 44 | 41.9 |
1,2 and 3 | 30 | 28.6 |
Unspecified | 31 | 29.5 |
Number of included studies indexed in MEDLINE: | ||
Median | 9 | |
Interquartile range | 4–17 |