HIV pre-exposure prophylaxis programmatic preferences among people who inject drugs: findings from a discrete choice experiment

Table 3 Zero-centered^a part-worth utility scores (PWUS) for PrEP programmatic characteristics, stratified by prior PrEP awareness (N = 262)

PrEP program characteristics	Total Sample (N = 262)	Not Aware of PrEP (n = 197)	Aware of PrEP (n = 65)
Modality
Implant	-0.526	-0.537	-0.802
Injection	-0.040	-0.007	0.013
Oral	0.566	0.545	0.789
Frequency of use
Annually	0.834	0.856	0.923
Every two months	-0.074	-0.148	0.253
Daily	-0.760	-0.708	-1.176
Service location
CBO	-0.058	-0.044	-0.136
Clinic	0.097	0.089	0.123
Telemedicine	-0.038	-0.045	0.013
Prescription access location
On-site	-0.063	-0.039	-0.216
Outreach	0.036	0.018	-0.006
Mail	0.027	0.021	0.222
Adherence support
Social support	-0.031	-0.035	0.108
Outreach	0.095	-0.061	-0.300
Phone	0.126	0.096	0.192
Sum of ranges	3.097	2.997	4.879

^a PWUS = zero-centered part-worth utility scores, which sum to zero and reflect relative preferences for specific values of a given PrEP program characteristic
Abbreviations CBO = Community-based organization; PrEP = HIV pre-exposure prophylaxis; PWUS = Part-worth utility scores

ISSN: 1940-0640