HIV 予防のニーズを満たすリスクツールとしてのソーシャルメディア (SMaaRT)

The investigators will compare the above-noted measure datasets with the Wand risk score as assessed in the study participants at the time of SMS/social media data collection.

The Wand risk score is an empirically validated HIV prediction tool designed to estimate the probability of HIV acquisition in women. It calculates a total score (max 50 pts): age <20 years (11 pts), 20-24 years (10 pts), 25-29 years (6 pts), 30+ years (0 pts); marital status of single/not cohabitating (13 pts), married/cohabitating (0 pts); # sexual partners in last 3 months of 3 or more (5 pts), <3 (0 pts); age at sexual debut of <16 years (3 pts), 16+ years (0 pts); parity (# of births) of 0-1 births (10 pts), 2 births (8 pts), 3+ births (0 pts); ever diagnosed with an STI as yes (4 pts), no (0 pts); and use of injectable contraception as yes (4 pts), no (0 pts). A higher score denotes a higher HIV risk. The total possible range is 0-50.

Analysts will examine 6 months of SMS/social media message content from each of the 400 study participants using three computational linguistic methods: 1) sentiment, valence, and arousal analysis; 2) topic modeling; 3) simple textual counts. Analysts will also perform network analysis with up to 20 contacts from each participant to understand how often and with which parties the participant communicates most frequently. These networks will be examined temporally to see if any of the connections have grown or weakened over time.

The VOICE risk score (modified to not use biological markers) is a measure of behavioral and demographic factors to determine HIV risk: <25 y/o (2 pts), unmarried or not living with a partner (2 pts), primary partner has other partners (2 pts), partner does not provide financial support (1 pt), alcohol use in the last 3 months (1 pt). A higher score denotes a greater HIV risk. The total possible range is 0-8.