Table 3.
Attribute-Level Preference Weights: Total and by Latent Class Group
| Total (n=200) | Side Effects (n=69) | Quick Onset (n=47) | Quick Onset and Long Duration (n=84) | ||
|---|---|---|---|---|---|
| Attribute | Level | Μ (95% CI) | Μ (95% CI) | Μ (95% CI) | Μ (95% CI) |
| Speed of onset - “Medication takes effect in __” | 4 hours | −3.32 (−3.55–3.09) | −1.86 (−2.11–1.60) | −4.65 (−5.05–4.26) | −3.78 (−4.04–3.52) |
| 2 hours | 0.17 (0.10–0.23) | −0.03 (−0.13–0.06) | 0.16 (−0.01–0.33) | 0.34 (0.25–0.43) | |
| 1.5 hours | 1.25 (1.18–1.32) | 0.91 (0.80–1.02) | 1.51 (1.37–1.64) | 1.38 (1.29–1.47) | |
| 1 hour | 1.90 (1.73–2.08) | 0.98 (0.75–1.21) | 2.99 (2.65–3.32) | 2.06 (1.85–2.26) | |
| Duration of effect - “Medication lasts for __ after it is taken” | 8 hours | −1.28 (−1.48–1.07) | −0.62 (−0.88–0.35) | −0.15 (−0.52–0.22) | −2.45 (−2.66–2.24) |
| 12 hours | 0.21 (0.15–0.27) | 0.34 (0.24–0.45) | 0.04 (−0.09–0.17) | 0.20 (0.11–0.28) | |
| 14 hours | 0.64 (0.56–0.72) | 0.33 (0.21–0.44) | 0.50 (0.33–0.66) | 0.98 (0.88–1.08) | |
| 16 hours | 0.42 (0.27–0.58) | −0.05 (−0.26–0.16) | −0.39 (−0.68–0.10) | 1.27 (1.10–1.44) | |
| Insomnia/sleep disturbance - “__ risk of insomnia or disruptions to sleep” | 31% | −1.27 (−1.37–1.16) | −1.64 (−1.80–1.47) | −0.54 (−0.70–0.38) | −1.37 (−1.52–1.23) |
| 18% | −0.07 (−0.13–0.02) | −0.16 (−0.27–0.06) | 0.06 (−0.07–0.18) | −0.07 (−0.15–0.00) | |
| 5% | 1.34 (1.23–1.46) | 1.80 (1.63–1.97) | 0.48 (0.31–0.66) | 1.45 (1.30–1.60) | |
| Headache - “__ risk of headache” | 32% | −1.89 (−2.02–1.75) | −2.66 (−2.86–2.46) | −1.01 (−1.20–0.83) | −1.74 (−1.90–1.58) |
| 15% | 0.32 (0.26–0.38) | 0.29 (0.19–0.38) | 0.16 (0.04–0.27) | 0.44 (0.35–0.52) | |
| <1% | 1.57 (1.42–1.71) | 2.37 (2.17–2.57) | 0.86 (0.66–1.06) | 1.30 (1.12–1.48) | |
| Nervousness/anxiety/irritability - “__ risk of feeling nervous, anxious, or irritable” | 13% | −0.91 (−1.01–0.80) | −1.24 (−1.39–1.09) | −0.37 (−0.60–0.14) | −0.93 (−1.07–0.79) |
| 7% | 0.14 (0.09–0.20) | 0.21 (0.10–0.32) | 0.15 (0.03–0.27) | 0.08 (0.01–0.16) | |
| <1% | 0.77 (0.66–0.87) | 1.04 (0.86–1.21) | 0.22 (0.01–0.43) | 0.85 (0.71–0.99) | |
| Rebound - “__ risk of rebound/crash effect when medication effect wears off (making you feel eg, moody, tired, drained, or sluggish)” | 9% | −0.62 (−0.74–0.50) | −0.50 (−0.69–0.30) | 0.01 (−0.20–0.22) | −1.08 (−1.23–0.93) |
| 3% | −0.04 (−0.12–0.05) | −0.46 (−0.56–0.35) | 0.05 (−0.13–0.24) | 0.26 (0.14–0.38) | |
| <1% | 0.66 (0.56–0.76) | 0.96 (0.79–1.12) | −0.06 (−0.24–0.12) | 0.82 (0.70–0.94) |
Note: Text appearing in quotations shows the text seen by respondents for each attribute.
Abbreviations: CI, confidence interval; M, mean.