Table 3.
Age of Initiation of Oral Sex with a Man by Race/Ethnicity of MSM Participants in the American Men’s Internet Survey, United States, 2015
| Race/Ethnicity | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| All | Black, non-Hispanic | Hispanic | White, non-Hispanic | Other or multiple races | ||||||
| (N=8,331) | (N=544) | (N=1,214) | (N=5,813) | (N=760) | ||||||
| Had oral sex by age xa | No. | (%) | No. | (%) | No. | (%) | No. | (%) | No. | (%) |
| 10 | 156 | (1.9) | 15 | (2.8) | 21 | (1.7) | 105 | (1.8) | 15 | (2.0) |
| 11 | 321 | (3.9) | 31 | (5.7) | 51 | (4.2) | 211 | (3.6) | 28 | (3.7) |
| 12 | 873 | (10.5) | 78 | (14.3) | 122 | (10.0) | 592 | (10.2) | 81 | (10.7) |
| 13 | 1436 | (17.2) | 118 | (21.7) | 202 | (16.6) | 983 | (16.9) | 133 | (17.5) |
| 14 | 2118 | (25.4) | 152 | (27.9) | 297 | (24.5) | 1483 | (25.5) | 186 | (24.5) |
| 15 | 2837 | (34.1) | 202 | (37.1) | 433 | (35.7) | 1948 | (33.5) | 254 | (33.4) |
| 16 | 3734 | (44.8) | 259 | (47.6) | 572 | (47.1) | 2569 | (44.2) | 334 | (43.9) |
| 17 | 4451 | (53.4) | 315 | (57.9) | 709 | (58.4) | 3030 | (52.1) | 397 | (52.2) |
| 18 | 5486 | (65.9) | 374 | (68.8) | 900 | (74.1) | 3715 | (63.9) | 497 | (65.4) |
| 19 | 6149 | (73.8) | 414 | (76.1) | 974 | (80.2) | 4200 | (72.3) | 561 | (73.8) |
| 20 | 6605 | (79.3) | 442 | (81.3) | 1026 | (84.5) | 4532 | (78.0) | 605 | (79.6) |
| 21 | 7036 | (84.5) | 468 | (86.0) | 1089 | (89.7) | 4842 | (83.3) | 637 | (83.8) |
| 22 | 7298 | (87.6) | 485 | (89.2) | 1117 | (92.0) | 5031 | (86.5) | 665 | (87.5) |
| 23 | 7481 | (89.8) | 502 | (92.3) | 1142 | (94.1) | 5146 | (88.5) | 691 | (90.9) |
| 24 | 7612 | (91.4) | 510 | (93.8) | 1149 | (94.6) | 5248 | (90.3) | 705 | (92.8) |
| 25 | 7728 | (92.8) | 516 | (94.9) | 1165 | (96.0) | 5326 | (91.6) | 721 | (94.9) |
| Log-rank p-valueb | <0.001 | <0.001 | ref | 0.104 | ||||||
| Mean [SD] age of first oral sex | 18.0 [5.7] | 17.2 [4.6] | 17.2 [4.4] | 18.2 [6.1] | 17.8 [5.3] | |||||
| Rank-sum p-valuec | 0.004 | <0.001 | ref | 0.555 | ||||||
a
Number and percentages are cumulative. For example by 18 years of age, 5,486 (65.9%) total part icipants ever had oral sex with a male partner.
b
Log-rank p-value comparing equality of survival until first oral sex of one racial/ethnic group to referent group of white MSM.
c
Rank-sum p-value by Wilcoxon two-sample test comparing mean age of first oral sex of one racial/ethnic group to referent group of white MSM.