“…The majority of studies were conducted in the USA ( n = 20), 24–43 followed by Australia ( n = 10), 44–53 United Kingdom ( n = 8), 54–61 New Zealand ( n = 1), 62 Norway ( n = 2), 63,64 and Sweden ( n = 1) 65 . Thirty‐four studies, reported in 33 papers, employed a quantitative design, including RCTs of an intervention ( n = 5), 32,39,50,62,63 observational cohort studies ( n = 8), 24,27–29,35,54,59,60 cross‐sectional studies ( n = 11), 24,30,38,41–44,46,48,53,64 a case–control study, 26 a within‐subject experimental study, 40 a quasi‐experimental study, 51 and observational descriptive/measurement development 31 . Six studies undertook secondary analyses; two used cross‐sectional data, 25,37 two studies used data from observational cohort studies, 33,45 one used control group data, 34 and one used data from an RCT 36 .…”