Quality assurance of data collection in the multi-site community randomized trial and prevalence survey of the children’s healthy living program

Table 2 Baseline and follow-up results of the Children’s Healthy Living (CHL) program “in the office” and “in the field” quality assurance (QA) process

QA process	Prevalence sites		Intervention sites
	Baseline^a (n = 11)		Baseline^b (n = 5)		Follow-up^b (n = 5)
	All protocols met	Protocols not met	All protocols met	Protocols not met	All protocols met	Protocols not met
In the office
Form storage	6 (55 %)	5 (45 %)	3 (60 %)	2 (40 %)	4 (80 %)	1 (20 %)
Consent and assent forms	5 (45 %)	6 (55 %)	2 (40 %)	3 (60 %)	4 (80 %)	1 (20 %)
Accelerometer log	11 (100 %)	0	5 (100 %)	0	5 (100 %)	0
Accelerometer downloads and resetting	9 (82 %)	2 (18 %)	3 (60 %)	2 (40 %)	5 (100 %)	0
Completed forms/logs	11 (100 %)	0	5 (100 %)	0	5 (100 %)	0
In the field
Orientation/check-in	4 (36 %)	7 (64 %)	1 (20 %)	4 (80 %)	5 (100 %)	0
Food and activity log/accelerometer instruction	8 (73 %)	3 (27 %)	3(60 %)	2 (40 %)	3 (60 %)	2 (40 %)
Anthropometry/Acanthosis Nigricans station	3 (27 %)	8 (73 %)	1 (20 %)	4 (80 %)	2 (40 %)	3 (60 %)
Accelerometer placement station	8 (73 %)	3 (27 %)	3 (60 %)	2 (40 %)	2 (40 %)	3 (60 %)
Forms station	4 (36 %)	7 (64 %)	1 (20 %)	4 (80 %)	2 (40 %)	3 (60 %)
Check out station	7 (64 %)	4 (36 %)	3 (60 %)	2 (40 %)	4 (80 %)	1 (20 %)
Transport of forms	7 (64 %)	4 (36 %)	4 (80 %)	1 (20 %)	4 (80 %)	1 (20 %)

^aResults include all 11 jurisdictions
^bBaseline results among the five jurisdictions participating in the intervention study, for comparison with the 24 month follow-up measurements

ISSN: 1756-0500