Table 8. Descriptive statistics and standardized effect sizes for group comparisons for racial groups.
| Frequency | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| White | Black | Asian | Mixed | Black vs. White | Black vs. Asian | Asian vs. White | Mixed vs. White | Mixed vs. Black | |
| (n = 1536) | (n = 233) | (n = 86) | (n = 49) | ||||||
| M (SD) | M (SD) | M (SD) | M (SD) | d | d | d | d | d | |
| Past 12 months | |||||||||
| Oral sex | 1.5 (1.8) | 1.9 (2.1) | 1.3 (1.7) | 1.7 (1.7) | 0.20 | 0.31 | -0.11 | 0.11 | -0.10 |
| Vaginal sex | 2.0 (2.0) | 2.3 (2.1) | 1.8 (2.0) | 2.1 (2.1) | 0.15 | 0.24 | -0.10 | 0.05 | -0.10 |
| Anal sex | 0.4 (1.1) | 0.4 (1.2) | 0.4 (1.1) | 0.4 (0.8) | 0.00 | 0.17 | -0.18 | 0.00 | 0.00 |
| Past 30 days | |||||||||
| Oral sex | 1.4 (1.9) | 1.7 (2.1) | 1.1 (1.7) | 1.7 (2.0) | 0.15 | 0.31 | -0.17 | 0.15 | 0.00 |
| Vaginal sex | 1.8 (2.0) | 2.1 (2.2) | 1.7 (2.1) | 1.9 (2.2) | 0.14 | 0.19 | -0.05 | 0.05 | -0.09 |
| Anal sex | 0.3 (1.1) | 0.3 (1.0) | 0.3 (1.0) | 0.4 (1.0) | 0.00 | 0.00 | 0.00 | 0.10 | 0.10 |
| Number of Partners | |||||||||
| Lifetime | |||||||||
| Oral sex | 8.5 (15.4) | 9.8 (19.0) | 6.5 (15.2) | 8.9 (11.0) | 0.08 | 0.19 | -0.13 | 0.03 | -0.06 |
| Vaginal sex | 11.5 (18.4) | 14.4 (20.9) | 7.4 (15.6) | 10.4 (19.4) | 0.15 | 0.38 | -0.24 | -0.06 | -0.20 |
| Anal sex | 2.2 (6.6) | 1.7 (6.0) | 2.4 (8.6) | 1.3 (2.3) | -0.08 | -0.09 | 0.03 | -0.18 | -0.09 |
| Past 12 months | |||||||||
| Oral sex | 1.0 (2.2) | 1.5 (2.7) | 1.0 (2.1) | 1.4 (3.0) | 0.20 | 0.21 | 0.00 | 0.15 | -0.04 |
| Vaginal sex | 1.1 (2.1) | 1.7 (3.0) | 1.6 (3.5) | 1.6 (3.4) | 0.23* | 0.03 | 0.17 | 0.18 | -0.03 |
| Anal sex | 0.5 (2.2) | 0.6 (2.7) | 0.6 (2.5) | 0.3 (0.6) | 0.04 | 0.00 | 0.04 | -0.12 | -0.15 |
| Age at Initiation | |||||||||
| Oral sex | 19.5 (5.8) | 19.0 (5.6) | 22.2 (8.5) | 18.3 (5.2) | -0.09 | -0.44* | 0.37* | -0.22 | -0.13 |
| Vaginal sex | 18.4 (4.4) | 18.1 (6.0) | 21.3 (4.8) | 18.0 (7.5) | -0.06 | -0.59* | 0.63* | -0.07 | -0.01 |
| Anal sex | 24.6 (8.4) | 23.2 (6.7) | 22.5 (7.1) | 22.6 (7.6) | -0.18 | 0.10 | -0.27 | -0.25 | -0.08 |
Note. Effect sizes of group differences are based on post hoc tests using Tukey’s procedure.
* p < .005. Cohen’s d = X-Y/√((X2+Y2)/2). 85 responses were excluded due to incompletion.