Table 2. Joint Associations of Sensation Seeking and Impulsivity with Outcome Variables, Adjusted for Sociodemographic Factorsa.
| Outcome Variable and Effective Sample Size |
Sensation Seeking Estimate of exp[b1], (95% CI), p |
Impulsivity Estimate of exp[b2], (95% CI), p |
Interaction Estimate of exp[b3], (95% CI), p |
|---|---|---|---|
| Partners in last year (n=2,347) | 1.22, (1.15–1.31), p<.0001 | 1.21, (1.12–1.32), p<.0001 | 0.98, (0.90–1.06), p=.6409 |
| Partners in lifetime (n=2,327) | 1.21, (1.13–1.30), p<.0001 | 1.24, (1.14–1.35), p<.0001 | 0.92, (0.84–1.00), p=.0596 |
| Unprotected acts in last 30 days (n=1,901) |
1.06, (0.94–1.20), p=.3168 | 1.28, (1.10–1.48), p=.0013 | 0.95, (0.82–1.09), p=.4400 |
| Acts using alcohol in last 3 months (n=2,379) |
5 vs. 1: 3.08, (1.82–5.22) | 5 vs. 1: 1.62, (0.73–3.62) | 5 vs. 1: 0.71, (0.33–1.55) |
| 4 vs. 1: 2.84, (2.04–3.95) | 4 vs. 1: 3.95, (2.33–6.70) | 4 vs. 1: 0.53, (0.31–0.91) | |
| 3 vs. 1: 1.65, (1.31–2.07) | 3 vs. 1: 2.09, (1.61–2.71) | 3 vs. 1: 0.93, (0.70–1.25) | |
| 2 vs. 1: 1.29, (1.00–1.66), p<.0001 | 2 vs. 1: 1.16, (0.89–1.52), p<.0001 | 2 vs. 1: 0.83, (0.61–1.13), p=.1597 | |
| Acts using drugs in last 3 months (n=2,380) |
5 vs. 1: 3.29, (1.56–6.96) | 5 vs. 1: 1.54, (0.48–4.89) | 5 vs. 1: 0.83, (0.29–2.37) |
| 4 vs. 1: 1.80, (1.27–2.55) | 4 vs. 1: 4.93, (2.63–9.26) | 4 vs. 1: 0.28, (0.15–0.53) | |
| 3 vs. 1: 1.62, (1.30–2.03) | 3 vs. 1: 2.41, (1.72–3.37) | 3 vs. 1: 0.71, (0.51–1.01) | |
| 2 vs. 1: 1.51, (1.15–1.98), p<.0001 | 2 vs. 1: 1.60, (1.10–2.33), p<.0001 | 2 vs. 1: 0.73, (0.49–1.08), p=.0015 | |
| Acts with partner who had an STD in last 3 months (n=2,374) |
4 vs. 1: 1.01, (0.58–1.78) | 4 vs. 1: 1.57, (0.78–3.19) | 4 vs. 1: 0.38, (0.16–0.91) |
| 3 vs. 1: 0.83, (0.50–1.38) | 3 vs. 1: 2.22, (1.15–4.27) | 3 vs. 1: 0.63, (0.29–1.39) | |
| 2 vs. 1: 1.59, (1.30–1.94), p<.0001 | 2 vs. 1: 1.29, (0.99–1.68), p=.0223 | 2 vs. 1: 1.01, (0.77–1.31), p=.1129 | |
| Acts with partner who injected drugs in last 3 months (n=2,374) |
4 vs. 1: 2.34, (0.72–7.54) | 4 vs. 1: 1.40, (0.24–8.01) | 4 vs. 1: 1.57, (0.40–6.13) |
| 3 vs. 1: 1.42, (0.55–3.69) | 3 vs. 1: 1.37, (0.37–5.03) | 3 vs. 1: 1.79, (0.70–4.62) | |
| 2 vs. 1: 1.11, (0.83–1.49), p=.4053 | 2 vs. 1: 2.02, (1.32–3.11), p=.0138 | 2 vs. 1: 0.83, (0.54–1.27), p=.4315 | |
| Acts with non-monogamous partner in last 3 months (n=2,374) |
4 vs. 1: 1.82, (1.33–2.48) | 4 vs. 1: 1.28, (0.85–1.93) | 4 vs. 1: 0.92, (0.61–1.38) |
| 3 vs. 1: 1.63, (1.30–2.06) | 3 vs. 1: 1.52, (1.12–2.07) | 3 vs. 1: 0.89, (0.65–1.22) | |
| 2 vs. 1: 1.61, (1.27–2.04), p<.0001 | 2 vs. 1: 1.48, (1.08–2.03), p=.0100 | 2 vs. 1: 0.88, (0.64–1.22), p=.8155 | |
| Acts with partner who has sex with both men and women in last 3 months (n=2,374) |
4 vs. 1: 1.58, (1.07–2.31) | 4 vs. 1: 1.68, (0.93–3.05) | 4 vs. 1: 1.02, (0.60–1.73) |
| 3 vs. 1: 2.00, (1.34–3.00) | 3 vs. 1: 1.05, (0.58–1.91) | 3 vs. 1: 1.13, (0.67–1.93) | |
| 2 vs. 1: 1.00, (0.75–1.34), p=.0014 | 2 vs. 1: 1.83, (1.22–2.73), p=.0122 | 2 vs. 1: 0.73, (0.47–1.12), p=.4740 | |
| Acts with partner using alcohol in last 3 months (n=2,307) |
4 vs. 1: 2.15, (1.55–2.98) | 4 vs. 1: 4.35, (2.60–7.27) | 4 vs. 1: 0.45, (0.27–0.76) |
| 3 vs. 1: 1.60, (1.28–2.00) | 3 vs. 1: 1.75, (1.35–2.27) | 3 vs. 1: 0.86, (0.65–1.13) | |
| 2 vs. 1: 1.10, (0.86–1.41), p<.0001 | 2 vs. 1: 1.17, (0.89–1.53), p<.0001 | 2 vs. 1: 0.65, (0.48–0.87), p=.0023 | |
| Acts with partner using drugs in last 3 months (n=2,352) |
4 vs. 1: 1.62, (1.15–2.30) | 4 vs. 1: 3.98, (2.22–7.11) | 4 vs. 1: 0.39, (0.21–0.71) |
| 3 vs. 1: 1.36, (1.08–1.70) | 3 vs. 1: 2.28, (1.66–3.14) | 3 vs. 1: 0.71, (0.51–0.99) | |
| 2 vs. 1: 1.39, (1.08–1.79), p=.0013 | 2 vs. 1: 1.50, (1.08–2.09), p<.0001 | 2 vs. 1: 0.88, (0.63–1.23), p=.0080 |
Note. exp[b1], exp[b2], and exp[b3] are defined in the Data Analysis section of the article.
CI = confidence interval; STD = sexually transmitted disease.
a
The estimated regression coefficients in this table have essentially the same interpretations as those in Table 1, except that now the following covariates are controlled for: gender, race (White or non-White), ethnicity (Latino or non-Latino), age, and highest grade completed.