Table 2

Descriptive characteristics of included studies

Number (%)
Method
 Quantitative58 (93.6)
 Qualitative0 (0.0)
 Mixed4 (6.5)
Study design
 Intervention4 (6.5)
 Observational58 (93.6)
 Cross-sectional50 (80.7)
 Longitudinal10 (16.1)
Level of evidence
 10 (0.0)
 Other62 (100.0)
Setting
 Hospital55 (88.7)
 Aged care4 (6.5)
 Other3 (4.8)
Country
 USA36 (58.1)
 Europe11 (17.7)
 Canada5 (8.1)
 Asia4 (6.5)
 Australia2 (3.2)
 Middle East2 (3.2)
 UK2 (3.2)