Protocol, rationale and design of SELPHI: a randomised controlled trial assessing whether offering free HIV self-testing kits via the internet increases the rate of HIV diagnosis

Michelle M. Gabriel; David T. Dunn; Andrew Speakman; Leanne McCabe; Denise Ward; T. Charles Witzel; Justin Harbottle; Simon Collins; Mitzy Gafos; Fiona M. Burns; Fiona C. Lampe; Peter Weatherburn; Andrew Phillips; Sheena McCormack; Alison J. Rodger

doi:10.1186/s12879-018-3433-x

Table 2 Summary of variables collected on electronic surveys

From: Protocol, rationale and design of SELPHI: a randomised controlled trial assessing whether offering free HIV self-testing kits via the internet increases the rate of HIV diagnosis

Variable	Patient Group	Time point(s)
Age	ALL	Baseline
Soundex	ALL	Baseline
Postcode	ALL	Baseline
Country of Birth	ALL	Baseline
Length of residency in the UK	ALL	Baseline
Ethnicity	ALL	Baseline
Highest Educational Qualification	ALL	Baseline
Sexual Identity	ALL	Baseline
Timing of last HIV test	ALL	Baseline
Timing of last STI screen	ALL	Baseline
Number condomless anal intercourse partners (last 3 months)	ALL	Baseline
PrEP and PEP usage	ALL	Baseline
Confirmation of HIVST Kit receipt	BT/RT	2-weeks post kit shipment
	BT	3-month post baseline
	RT	3-monthly post Randomisation B entry
Confirmation of HIVST Kit usage	BT/RT	2-weeks post kit shipment
	BT	3-month post baseline
	RT	3-monthly post Randomisation B entry
Self-reported HIVST result	BT/RT	2-weeks post kit shipment
	BT	3-month post baseline
	RT	3-monthly post Randomisation B entry
Kits receipt & usage experiences	BT	3-month post baseline
Kits receipt & usage experiences	RT	3-monthly post Randomisation B entry
Timing of HIV tests in last 3 months (not including HIVST)	BT/NBT	3-month post baseline
Timing of HIV tests in last 3 months (not including HIVST)	RT/NRT	3-monthly post Randomisation B entry
Self-reported HIV positive test result (from any other source)	BT/NBT	3-month post baseline
	RT/NRT	3-monthly post Randomisation B entry
Timing of STI tests in last 3 months	BT/NBT	3-month post baseline
Timing of STI tests in last 3 months	RT/NRT	3-monthly post Randomisation B entry
Number condomless anal intercourse partners (last 3 months)	BT/NBT	3-month post baseline
Number condomless anal intercourse partners (last 3 months)	RT/NRT	3-monthly post Randomisation B entry
Interest in future HIVST If available	BT/NBT	3-month post baseline
Offer of another free HIVST	RT	Randomisation B Entry
Offer of another free HIVST	RT	3-monthly post Randomisation B entry

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