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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
RT 3-monthly post Randomisation B entry
Timing of HIV tests in last 3 months (not including HIVST) BT/NBT 3-month post baseline
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
RT/NRT 3-monthly post Randomisation B entry
Number condomless anal intercourse partners (last 3 months) BT/NBT 3-month post baseline
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
RT 3-monthly post Randomisation B entry