Table 2.
Linear regression of outcome measures.
| Outcome measures | Decision aid | Control | Regression | |||
| Mean (SD) | Mean (SD) | Group difference (95% CI)a | t, P values | Effect size (η2)b | ||
| Stage of decision making | ||||||
| Preintervention | 3.7 (2.0) | 3.1 (2.1) | ||||
| Postintervention | 4.0 (1.6) | 4.0 (1.7) | −0.4 (−1.4 to 0.8) | −0.68, .51 | 0.02 | |
| 4-week follow-up | 3.5 (3.5) | 4.8 (1.6) | −1.4 (−3.0 to 0.3) | −0.17, .10 | 0.13 | |
| DCScuncertainty subscale | ||||||
| Preintervention | 31.7 (32.8) | 35.9 (33.9) | ||||
| Postintervention | 31.7 (33.7) | 37.2 (35.5) | −1.3 (−11.1 to 8.4) | −0.29, .78 | 0.00 | |
| 4-week follow-up | 40.0 (42.5) | 30.8 (27.9) | 11.1 (−14.3 to 37.7) | 0.94, .36 | 0.04 | |
| DCS support subscale | ||||||
| Preintervention | 15.0 (18.3) | 19.2 (23.4) | ||||
| Postintervention | 15.0 (24.2) | 11.5 (19.7) | 6.8 (−5.4 to 19.0) | 1.17, .26 | 0.06 | |
| 4-week follow-up | 21.7 (26.1) | 15.4 (18.6) | 5.7 (−14.1 to 25.6) | 0.60, .55 | 0.02 | |
| Questionnaire on anticipated discrimination | ||||||
| Preintervention | 4.5 (2.7) | 5.4 (2.2) | ||||
| 4-week follow-up | 6.1 (3.6) | 4.4 (2.1) | 0.4 (−0.8 to 0.9) | 1.76, .10 | 0.13 | |
| GHSQd(intentional help-seeking) | ||||||
| Preintervention | 36.4 (8.4) | 45.8 (8.9) | 9.1 (−16.7 to −1.4) | 2.47, .02 | 0.23 | |
| GHSQ (actual help-seeking) | ||||||
| 4-week follow-up | 1.6 (1.8) | 2.2 (1.9) | 0.6 (−2.3 to 1.0) | 0.80, .44 | 0.03 | |
aAdjusted for baseline scores.
bPartial eta squared.
cDCS: Decisional Conflict Scale.
dGHSQ: General Help-Seeking Questionnaire.