Table 2.

Characteristics of survey method

Study	Employed five-point response scale	Interview, questionnaire or other	Acceptable score
Nicholson et al. (2020) [10]	+	Questionnaire	4/5 +
Mehrtens et al. (2019) [11]	+	Questionnaire	4/5 +
Wang et al. (2018) [22]	+	Questionnaire	4/5 +
Bosanac et al. (2018) [26]	+	Questionnaire	4/5 +
Rajda et al. (2018) [27]	+	Questionnaire	4/5 +
Marchell et al. (2017) [28]	+	Questionnaire	4/5 +
Chee et al. (2016) [29]	+	Questionnaire	4/5 +
Livingstone et al. (2015) [30]	+	Questionnaire	4/5 +
Ford et al. (2015) [31]	+	Questionnaire	4/5 +
Frühauf et al. (2015) [13]	+	Questionnaire	4/5 +
Hsueh et al. (2012) [12]	+	Questionnaire	4/5 +
Frühauf et al. (2012) [13]	+	Questionnaire	4/5 +
Koller et al. (2011) [14]	+	Questionnaire	4/5 +
Azfar et al. (2011) [15]	−	Questionnaire	Variable
Lim et al. (2018) [16]	−	Questionnaire	Preferred/did not prefer fewer visits
Quran et al. (2015) [17]	−	Questionnaire	More/Same/ Less
Baranowski et al. (2019) [18]	−	Questionnaire	Agree/disagree
Fiks et al. (2018) [19]	−	Questionnaire	Agree/Disagree
Bianciardi et al. (2016) [20]	−	Questionnaire	Agree/Disagree
Thind et al. (2011) [21]	−	Questionnaire	5/6 +
Kaliyadan et al. (2013) [23]	−	Questionnaire	3/4 +
Pathipati et al. (2016) [24]	−	Interview	N/A
Lester et al. (2014) [25]	−	Anecdotally assessed	N/A