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. Author manuscript; available in PMC: 2025 Jan 1.
Published in final edited form as: Sex Transm Dis. 2023 Oct 25;51(1):54–60. doi: 10.1097/OLQ.0000000000001889

Table 2.

Sexual behavior modifications associated with mpox transmission by demographic, clinical, and behavioral characteristics among persons presenting for mpox vaccination, Washington, DC, August–October 2022

One-time sexual encounters Number of sex partners Sex via a dating app or sex venue Group sex

n, %, 95% CI

N Increase Decrease No change N Increase Decrease No change N Increase Decrease No change N Increase Decrease No change
Total 615 4
0.7 (0.2, 1.7)
374
60.8 (56.8, 64.7)
237
38.5 (34.7, 42.5)
682 3
0.4 (0.0, 1.3)
370
54.3 (50.4, 58.0)
309
45.3 (41.5, 49.1)
570 2
0.3 (0.0, 1.3)
307
53.9 (49.7, 58.0)
261
45.8 (41.6, 50.0)
364 2
0.5 (0.0, 2.0)
166
45.6 (40.4, 50.9)
196
53.9 (48.6, 59.1)

Age (y)

  18–24 123 2
1.6 (0.2, 5.8)
69
56.1 (48.6, 65.0)
52
42.3 (33.4, 51.5)
133 0
0.0
--
75
56.4 (47.5, 65.0)
58
43.6 (35.0, 52.5)
118 1
0.8 (0.0, 4.6)
60
50.9 (41.5, 60.2)
57
48.3 (39.0, 57.7)
71 0
0.0
--
28
39.4 (28.0, 51.8)
43
60.6 (48.3, 72.0)

  25–34 238 0
0.0
--
140
58.8 (52.3, 65.1)
98
41.2 (34.9, 47.7)
270 0
0.0
--
133
49.3 (43.2, 55.4)
137
50.7 (44.6, 56.9)
225 0
0.0
--
115
51.1 (44.4, 57.8)
110
48.9 (42.2, 55.6)
134 1
0.7 (0.0, 4.1)
60
44.8 (36.2, 53.6)
73
54.5 (45.7, 63.1)

  35–44 125 1
0.8 (0.0, 4.4)
73
58.4 (49.3, 67.2)
51
40.8 (32.1, (50.0)
139 2
1.4 (0.1, 5.1)
71
51.1 (42.4, 59.7)
66
47.5 (39.0, (56.1)
119 1
0.8 (0.0, (4.6)
64
53.8 (44.4, 63.0)
54
45.4 (36.2, 54.8)
88 1
1.1 (0.0, 6.1)
40
45.5 (34.8, 56.4)
47
53.4 (42.5, 64.1)

  45–54 68 0
0.0
--
48
70.6 (58.3, 81.0)
20
29.4 (19.0, 41.7)
73 1
1.4 (0.0, 7.4)
50
68.5 (56.6, 78.9)
22
30.1 (19.9, 42.0)
60 0
0.0
--
39
65.0 (51.6, 76.9)
21
35.0 (23.1, 48.4)
42 0
0.0
--
22
52.4 (36.4, 68.0)
20
47.6 (32.0, 63.6)

  ≥55 61 1
1.6 (0.0, 8.8)
44
72.1 (59.2, 82.9)
16
26.2 (15.8, 39.1)
67 0
0.0
--
41
61.2 (48.5, 72.9)
26
38.8 (27.1, 51.5)
48 0
0.0
--
29
60.4 (45.3, 74.2)
19
39.6 (25.8, 54.7)
29 0
0.0
--
16
55.2 (35.7, 73.6)
13
44.8 (26.5, 64.3)

Race/Ethnicity 1

Asian, non Hispanic 49 1
2.0 (0.0, 10.9)
32
65.3 (50.4, 78.3)
16
32.7 (20.0, 47.5)
56 0
0.0
--
35
62.5 (48.6, 65.1)
21
37.5 (24.9, 51.5)
47 0
0.0
--
31
66.0 (50.7, 79.1)
16
34.0 (20.9, 49.3)
29 0
0.0
--
13
44.8 (26.5, 64.3)
16
55.2 (35.7, 73.6)

Black, non-Hispanic 120 3
2.5 (0.0, 7.1)
91
75.8 (67.2, 83.1)
26
21.7 (14.6, 30.1)
139 2
1.4 (0.0, 5.1)
94
67.6 (59.2, 75.3)
43
30.9 (23.3, 39.3)
102 1
0.9 (0.0, 5.3)
68
66.7 (56.6, 75.7)
33
32.4 (23.4, 42.3)
64 1
1.6 (0.0, 8.4)
39
60.9 (47.9, 72.9)
24
37.5 (25.7, 50.5)

Hispanic 87 0
0.0
--
56
64.4 (53.3, 74.4)
31
35.6 (25.7, 46.6)
99 1
1.0 (0.0, 5.5)
54
54.6 (44.2, 64.6)
44
44.4 (34.5, 54.8)
80 1
1.3 (0.0, 6.8)
46
57.5 (45.9, 68.5)
33
41.3 (30.4, 52.8)
43 0
0.0
--
22
51.2 (35.5, 66.7)
21
48.8 (33.3, 64.5)

White, non-Hispanic 333 0
0.0
--
180
54.1 (48.5, 59.5)
153
45.9 (40.5, 51.5)
355 0
0.0
--
172
48.5 (43.1, 53.8)
183
51.5 (46.2, 56.9)
317 0
0.0
--
151
47.6 (42.0, 53.3)
166
52.4 (46.7, 58.0)
213 0
0.0
--
87
40.9 (34.2, 47.8)
126
59.2 (52.2, 65.8)

Self-reported HIV status

Reported HIV 50 0
0.0
--
41
82.0 (68.6, 91.4)
9
18.0 (8.5, 31.4)
60 0
0.0
--
46
76.7 (64.0, 86.6)
14
23.3 (13.3, 36.0)
46 0
0.0
--
32
69.6 (54.3, 82.3)
14
30.4 (17.7, 45.8)
32 0
0.0
--
23
71.9 (53.3, 86.3)
9
28.1 (13.8, 46.8)

Did not report HIV 560 4
0.7 (0.0, 1.8)
329
58.8 (54.6, 62.9)
227
40.5 (36.4, 44.7)
618 3
0.5 (0.0, 1.4)
321
51.9 (47.9, 55.9)
294
47.6 (43.6, 51.6)
521 2
0.4 (0.0, 1.4)
273
52.4 (48.0, 56.8)
246
47.2 (42.9, 51.6)
329 2
0.6 (0.0, 2.2)
141
42.9 (37.4, 48.4)
186
56.5 (51.0, 62.0)

Gender identity and gender identity of sex partners 2

Gay, bisexual or other MSM 386 2
0.5 (0.0, 1.9)
263
68.1 (63.2, 72.8)
121
31.4 (26.8, 36.2)
413 2
0.5 (0.0, 1.7)
259
62.7 (57.8, 67.4)
152
36.8 (32.1, 41.7)
353 1
0.3 (0.0, 1.6)
217
61.5 (56.1, 66.6)
135
38.2 (33.2, 43.5)
230 1
0.4 (0.0, 2.4)
123
53.4 (46.8, 60.1)
106
46.1 (39.5, 52.8)

Men, sex with women only 20 0
0.0
--
6
30.0 (11.8, 54.2)
14
70.0 (45.7, 88.1)
27 0
0.0
--
5
18.5 (6.3, 38.1)
22
81.5 (61.9, 93.7)
18 0
0.0
--
1
5.6 (0.1, 27.3)
17
94.4 (72.7, 99.9)
13 0
0.0
--
1
7.7 (0.0, 36.0)
12
92.3 (64.0, 99.8)

Women 159 1
0.6 (0.0, 3.5)
79
49.7 (41.7, 57.7)
79
49.7 (41.7, 57.7)
186 1
0.5 (0.0, 3.0)
78
41.9 (34.8, 49.4)
107
57.5 (50.0, 64.7)
148 1
0.7 (0.0, 3.7)
63
42.6 (34.5, 51.0)
84
56.8 (48.4, 64.9)
88 1
1.1 (0.0, 6.2)
28
31.8 (22.2, 42.6)
59
67.1 (56/2, 76.7)

Other, gender identity or gender identity of sex partner not specified 50 1
2.0
(0.0, 10.7)
26
52.0 (37.4, 66.3)
23
46.0 (31.8, 60.7)
56 0
0.0
--
28
50.0 (36.3, 63.7)
28
50.0 (36.3, 63.7)
51 0
0.0
--
26
51.0 (36.6, 65.3)
25
49.0 (34.8, 63.4)
33 0
0.0
--
14
42.4 (25.5, 60.8)
19
57.6 (39.2, 74.5)

Number of sex partners 3

0 92 1
1.1 (0.0, 5.9)
62
67.4 (56.8, 76.8)
29
31.5 (22.2, 42.0)
98 1
1.0 (0.0, 5.6)
67
68.4 (58.2, 77.4)
30
30.6 (21.7, 40.7)
85 1
1.2 (0.0, 6.4)
57
67.1 (56.0, 76.9)
27
31.8 (22.1, 42.8)
47 1
2.1 (0.0, 11.3)
26
55.3 (40.1, 69.8)
20
42.6 (28.3, 57.8)

1 184 1
0.5 (0.0, 3.0)
127
69.0 (61.8, 75.6)
56
30.4 (23.9, 37.6)
225 2
0.9 (0.0, 3.2)
119
52.9 (46.1, 59.6)
104
46.2 (39.6, 53.0)
167 0
0.0
--
102
61.1 (53.2, 68.5)
65
38.9 (31.4, 46.8)
109 0
0.0
--
46
42.2 (32.8, 52.0)
63
57.8 (48.0, 67.2)

2–3 277 2
0.
(0.7, 2.6)
151
54.5 (48.5, 60.5)
124
44.8 (38.8, 50.8)
296 0
0.0
--
144
48.7 (42.8, 54.5)
152
51.4 (45.5, 57.2)
263 1
0.4 (0.0, 2.1)
122
46.4 (40.2, 52.6)
140
53.2 (47.0, 59.4)
161 0
0.0
--
70
43.5 (35.7, 51.5)
91
56.5 (48.5, 64.3)

≥4 35 0
0.0
--
16
45.7 (28.8, 63.3)
19
54.3 (36.7, 71.2)
35 0
0.0
--
20
57.1 (39.4, 73.7)
15
42.9 (26.3, 60.7)
31 0
0.0
--
12
38.7 (21.9, 57.8)
19
61.3 (42.2, 78.2)
30 0
0.0
--
15
50.0 (31.3, 68.7)
15
50.0 (31.3, 68.7)

CI: Confidence interval; MSM=Men who have sex with men. Percentages may not add to 100 due to rounding.

Note: Persons who reported the behavior was inapplicable or with missing data for that characteristic or behavior were excluded from the denominator.

1

Participants with Hispanic or Latino/a ethnicity were categorized as Hispanic and might be of any race; persons with non-Hispanic ethnicity were categorized into single race groups or as multiracial. Participants reporting multiracial identity were not shown separately.

2

Men, including transgender men, were categorized as gay, bisexual or other MSM if they reported sex with men or a transgender male partner in the past 14 days or reported they were gay or bisexual. The remaining men and transgender men were grouped as men who had sex with women if they reported sex with only women or transgender women in the past 14 days and reported a sexual orientation of straight. Women included those who self-identified as women or transgender women, regardless of reported gender identity of sex partners or sexual orientation. The other category includes 41 participants who reported “other” gender identity and 17 participants who did not specify gender of sex partner.

3

In the past 14 days.