Assessing usability of QIAreach QuantiFERON-TB platform in a high tuberculosis prevalence, low-resource setting

Conceptor Kaaba; Maria Ruperez; Barry Kosloff; Nduku Ndunda; Kwame Shanaube; Helen Ayles

doi:10.1183/23120541.00511-2021

Tables

TABLE 1

Summary of task success rate, time from setup to results and user satisfaction by participant

	Participant									*Effectiveness (i.e.* pass rate)**
	1	2	3	4	5	6	7	8	9	*Effectiveness (i.e.* pass rate)**
Task 1	P	P	P	P	P	P	P	P	P	9/9 (100%)
Task 2	PH	PH	P	P	P	P	P	P	P	9/9 (100%)
Task 3	PH	PH	P	P	P	P	P	P	P	9/9 (100%)
Task 4	F	PH	P	P	P	P	P	P	P	8/9 (89%)
Efficiency^#, min	40	36	30	30	26	23	29	26	22
User satisfaction^¶	2	4	4	4	5	5	4	5	4

Task 1: setup (place blood tube on eHub, place eStick in eHub, add processing tube on eHub); task 2: load sample (add buffer to processing tube, remove plasma from blood tube, add plasma to processing tube, mix plasma and buffer in processing tube); task 3: run test (add test sample to eStick port); task 4: process results (enter and track data in software). P: pass; F: fail; PH: pass with hint; ^#: mean time from setup to results; ^¶: Likert scale, 1=very unsatisfied, 2=unsatisfied, 3=neutral, 4=satisfied, 5=very satisfied.