Table 4. Multivariable predictors of willingness for mpox vaccination among men who have sex with men (MSM, n=250) and transgender women (TGW, n=251).

Predictors	Model 4.1. Mpox Vaccination Willingness among MSM & TGW			Model 4.2. Mpox Vaccination Willingness among MSM			Model 4.3. Mpox Vaccination Willingness among TGW
	PRRa	95% CI	p	PRR	95% CI	p	PRR	95% CI	p
Sociodemographics
Age (years)	1.01	0.99 – 1.03	0.35	1.00	0.98 – 1.02	0.85	1.00	0.97 – 1.03	0.92
Education: ≥ Higher secondary (Ref.: ≤ 10th grade)	0.80	0.63 – 1.02	0.07	0.94	0.74 – 1.21	0.66	0.65	0.42 – 1.03	0.06
Recruitment: Online (Ref.: Offline)	1.52	1.19 – 1.93	0.001	0.71	0.54 – 0.94	0.018	15.20	5.25 – 43.98	<0.001
Subgroup: TGW (Ref.: MSM)	0.43	0.30 – 0.60	<0.001	–	–	–		–	–
Awareness of mpox and PrEP
Prior awareness of Mpox – Yes (Ref.: No)	1.12	0.85 – 1.47	0.40	1.25	0.94 – 1.65	0.12	1.25	0.70 – 2.20	0.44
Awareness of burden of mpox among MSM/TGW – Yes (Ref.: No)	1.31	1.01 – 1.69	0.041	1.06	0.81 – 1.38	0.66	2.05	1.28 – 3.30	0.003
PrEP awareness - Yes (Ref.: No)	0.94	0.75 – 1.17	0.59	0.90	0.72 – 1.13	0.36	0.94	0.57 – 1.55	0.80
HIV/STI risk
Sex work in the past month - Yes (Ref.: No)	1.01	0.75 – 1.35	0.96	0.87	0.67 – 1.13	0.28	1.54	0.83 – 2.87	0.17
Inconsistent condom use with any male partner - Yes (Ref.: No)	0.68	0.53 – 0.87	0.002	0.84	0.66 – 1.07	0.16	0.68	0.41 – 1.12	0.13
Psychosocial problems
Anxiety - Yes (Ref.: No)	1.13	0.85 – 1.49	0.39	1.21	0.94 – 1.57	0.14	0.85	0.49 – 1.49	0.57
Depression - Yes (Ref.: No)	0.68	0.49 – 0.94	0.020	1.05	0.76 – 1.45	0.75	0.92	0.55 – 1.54	0.75
Health Protection Behavior
COVID vaccinated - Yes (Ref.: No)	0.73	0.50 – 1.07	0.11	0.70	0.44 – 1.12	0.13	0.82	0.49 – 1.38	0.46

^aPrevalence Rate Ratio

Note. Estimates are from multivariable modified Poisson regression models with robust standard errors. Model 4.1 was adjusted for all variables listed in the table. Models 4.2 and 4.3 were adjusted for all variables listed, excluding ‘Subgroup’. PrEP: Pre-Exposure Prophylaxis.