Table 1.
Summary of studies (n = 53)
| Study setting | Study design | ||
|---|---|---|---|
| Country | Number of studies | Design | Number of studies |
| United States | 27 | Quantitative cross-sectional studies | 17 |
| Canada | 7 | Quantitative non-randomized trials/cohort studies | 2 |
| Australia | 5 | Quantitative observational studies with prepost comparator only | 5 |
| England | 2 | RCT | 1 |
| South Africa | 2 | Qualitative | 14 |
| New Zealand | 2 | Mixed methods | 6 |
| the Netherlands | 2 | Systematic review | 4 |
| Italy | 1 | Other review | 2 |
| Taiwan | 1 | Other | 2 |
| Philippines | 1 | ||
| Norway | 1 | ||
| Israel | 1 | ||
| Republic of Ireland | 1 | ||