Knowledge, attitudes and experiences of genetic testing for autism spectrum disorders among caregivers, patients, and health providers: A systematic review

Table 1 Characteristics of included studies

	Percentage	Raw count
Year of publication
2012-2015	26.7%	8
2016-2019	43.3%	13
2020-2022	30.0%	9
Research country
America	63.3%	19
Taiwan	13.3%	4
Europe	13.3%	4
Other (Canada, Jordan, Malaysia)	10.0%	3
Sampling method
Convenience sampling	56.7%	17
Purposive sampling	20.0%	6
Random sampling	10.0%	3
Snowball sampling	10.0%	3
Missing	3.3%	1
Study setting
Online	53.3%	16
Face to Face	30.0%	9
Telephone	23.3%	7
Missing	10.0%	3
Assessment tools
Open-ended questionnaire	46.7%	14
Close and open-ended questionnaire	23.3%	7
Close-ended questionnaire	23.3%	7
Standard questionnaire	6.7%	2