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Table 2 Summary of variables collected at baseline and follow-up visits

From: Effect of availability of HIV self-testing on HIV testing frequency among men who have sex with men attending university in China (UniTest): protocol of a stepped-wedge randomized controlled trial

Variable modules

Time point(s)

Personal verification information

Baseline

Socio-demographic information

Baseline

Sexual behavior information

Baseline/Follow-up

Social media use behaviors

Baseline/Follow-up

Self-cognition scale

Baseline

HIV infection susceptibility/severity perception scale

Baseline/Follow-up

HIV testing obstacle perception scale

Baseline/Follow-up

HIV testing benefit perception scale

Baseline/Follow-up

HIV testing self-efficacy scale

Baseline/Follow-up

HIV testing behaviors

Baseline/Follow-up

Others: STIs, alcohol use, drug use

Baseline/Follow-up