Table 2.
Sexual Characteristics, Behavior, and Functioning Among U.S. and Canadian Medical Students, 2008*
| Sexual characteristic, behavior, or function | Male: No. (%) | Female: No. (%) |
|---|---|---|
| Virgin | 125/910 (13.7) | 168/1,343 (12.5) |
| In a sexual relationship | 583/910 (64.1) | 938/1,343 (69.8) |
| Six or more lifetime partners (non-virgin only) | 347/785 (44.2) | 451/1,175 (38.4) |
| No. of sex partners, last 6 months (non-virgin only) | ||
| 0 | 63/785 (8.0) | 99/1,175 (8.4) |
| 1 | 524/785 (66.7) | 895/1,175 (76.1) |
| ≥2 | 195/785 (24.8) | 176/1,175 (15.0) |
| Sexual frequency in last month (non-virgin only) | ||
| 0–2 (<25%) | 223/785 (28.4) | 353/1,175 (30.0) |
| 3–5 (25%–50%) | 156/785 (19.9) | 264/1,175 (22.5) |
| 6–10 (50%–75%) | 218/785 (27.8) | 307/1,175 (26.1) |
| ≥11 (>75%) | 180/785 (22.9) | 236/1,175 (20.1) |
| Sexual behavior | ||
| Masturbation | 875/910 (96.2) | 1,147/1,343 (85.4) |
| Received oral sex | 782/910 (85.9) | 1,149/1,343 (85.6) |
| Performed oral sex | 760/910 (83.5) | 1,152/1,343 (85.8) |
| Vaginal sex | 660/910 (72.5) | 1,100/1,343 (81.9) |
| Anal receptive sex | 119/910 (13.1) | 355/1,343 (26.4) |
| Anal insertive sex | 301/910 (33.1) | 36/1,343 (2.7) |
| Sex acts with partner of different gender | 690/910 (75.8) | 1,072/1,343 (79.8) |
| Sex acts with partner of same gender | 157/910 (17.3) | 240/1,343 (17.9) |
| Was restrained for sexual pleasure | 120/910 (13.2) | 295/1,343 (22.0) |
| Restrained someone else for sexual pleasure | 151/910 (16.6) | 216/1,343 (16.1) |
| Received pain for sexual pleasure | 42/910 (4.6) | 123/1,343 (9.2) |
| Inflicted pain for sexual pleasure | 39/910 (4.3) | 62/1,343 (4.6) |
| Erectile dysfunction (IIEF-EF score <26; male non-virgin only) | 102/734 (13.9) | — |
| Mild (IIEF-EF: 22–25) | 67/734 (9.1) | — |
| Mild-moderate (IIEF-EF: 17–21) | 28/734 (3.8) | — |
| Moderate (IIEF-EF: 11–16) | 5/734 (0.7) | — |
| Severe (IIEF-EF: 6–10) | 2/734 (0.3) | — |
| High risk for premature ejaculation (PEDT ≥9; male non-virgin only) | 114/497 (22.9) | — |
| High risk for female sexual dysfunction (FSFI ≤26.55; female non-virgin only) | — | 560/1,141 (49.1 ) |
| Interference with sex life from (female non-virgins in relationships only): | ||
| Excessive tiredness | — | 688/938 (73.3) |
| Psychological stress | — | 613/938 (65.4) |
| Disease | — | 57/938 (6.1) |
| Gynecological problem | — | 142/938 (15.1) |
| Lack of partner availability | — | 285/938 (30.4) |
*
The mean (standard deviation [SD]) age at first intercourse for men was 18.8 (2.7), and the mean (SD) age at first intercourse for women was 18.6 (2.8). IIEF-EF is the International Index of Erectile Function—Erectile Function domain. PE is premature ejaculation. FSFI is the Female Sexual Function Index. Geographic location and some other non-significant variables were excluded so as to streamline the table. Only those non-significant variables that would seem very central to sexuality issues were left on the table.