Table 5.
Univariate analyses | Multivariate analyses | ||||||||||
Conditions A1 to A4 | credible interval | credible interval | |||||||||
categorical variables | Comparisons | M | SD | 2.5% | 97.5% | Pr(OR > 1) | M | SD | 2.5% | 97.5% | Pr(OR > 1) |
frequency | W vs. C | 0.992 | 0.086 | 0.837 | 1.175 | 0.461 | 0.944 | 0.083 | 0.795 | 1.122 | 0.254 |
(high = 1, low = 2) | W vs. S | 1.157 | 0.076 | 1.017 | 1.315 | 0.987 | 1.088 | 0.071 | 0.957 | 1.236 | 0.901 |
W vs. A | 1.352 | 0.147 | 1.096 | 1.671 | 0.997 | 1.091 | 0.130 | 0.866 | 1.374 | 0.769 | |
intensity of symptoms | W vs. C | 0.985 | 0.086 | 0.830 | 1.166 | 0.429 | 0.917 | 0.082 | 0.770 | 1.091 | 0.164 |
(high = 1, low = 2) | W vs. S | 1.263 | 0.084 | 1.108 | 1.437 | > 0.999 | 1.168 | 0.078 | 1.026 | 1.330 | 0.990 |
W vs. A | 1.368 | 0.149 | 1.108 | 1.691 | 0.998 | 1.121 | 0.135 | 0.890 | 1.416 | 0.832 | |
type of illness | W vs. C | 0.803 | 0.070 | 0.678 | 0.952 | 0.006 | 0.838 | 0.080 | 0.696 | 1.008 | 0.031 |
(mental = 1, somatic = 2) | W vs. S | 1.132 | 0.075 | 0.995 | 1.288 | 0.970 | 1.029 | 0.073 | 0.896 | 1.180 | 0.657 |
W vs. A | 0.647 | 0.071 | 0.523 | 0.801 | < 0.001 | 0.674 | 0.086 | 0.527 | 0.863 | 0.001 | |
linear variables | Comparisons | M | SD | 2.5% | 97.5% | Pr(Beta> 0) | M | SD | 2.5% | 97.5% | Pr(Beta> 0) |
age | W vs. C | −0.024 | 0.009 | −0.041 | −0.006 | 0.003 | − 0.016 | 0.006 | − 0.029 | − 0.003 | 0.007 |
W vs. S | − 0.010 | 0.009 | −0.027 | 0.007 | 0.129 | 0.002 | 0.006 | −0.009 | 0.013 | 0.654 | |
W vs. A | − 0.029 | 0.009 | − 0.047 | − 0.011 | 0.001 | − 0.026 | 0.007 | − 0.041 | − 0.012 | < 0.001 | |
distress | W vs. C | −0.105 | 0.037 | −0.177 | − 0.031 | 0.003 | −0.171 | 0.040 | −0.250 | − 0.091 | < 0.001 |
W vs. S | −0.111 | 0.031 | −0.172 | −0.050 | < 0.001 | −0.079 | 0.032 | −0.143 | − 0.016 | 0.007 | |
W vs. A | −0.571 | 0.044 | −0.658 | −0.486 | < 0.001 | −0.518 | 0.049 | −0.615 | − 0.422 | < 0.001 | |
treatability | W vs. C | 0.147 | 0.071 | 0.010 | 0.286 | 0.982 | 0.138 | 0.069 | 0.003 | 0.274 | 0.977 |
W vs. S | −0.002 | 0.057 | −0.114 | 0.111 | 0.488 | −0.084 | 0.054 | −0.191 | 0.022 | 0.060 | |
W vs. A | −1.338 | 0.084 | −1.501 | −1.177 | < 0.001 | −1.266 | 0.082 | −1.427 | −1.106 | < 0.001 | |
social stigma | W vs. C | 0.151 | 0.053 | 0.049 | 0.254 | 0.998 | 0.141 | 0.060 | 0.023 | 0.260 | 0.991 |
W vs. S | −0.171 | 0.043 | −0.255 | −0.087 | < 0.001 | −0.137 | 0.047 | −0.230 | −0.044 | 0.002 | |
W vs. A | −0.268 | 0.064 | −0.394 | −0.143 | < 0.001 | −0.106 | 0.079 | −0.261 | 0.049 | 0.090 | |
belief in efficacy | W vs. C | −0.033 | 0.083 | −0.197 | 0.131 | 0.347 | |||||
of complementary | W vs. S | −0.019 | 0.073 | −0.163 | 0.123 | 0.395 | |||||
treatments | W vs. A | 0.104 | 0.094 | −0.081 | 0.289 | 0.865 | |||||
belief in efficacy | W vs. C | −0.031 | 0.078 | −0.182 | 0.121 | 0.344 | |||||
of conventional | W vs. S | 0.052 | 0.066 | −0.077 | 0.181 | 0.784 | |||||
treatments | W vs. A | −0.079 | 0.090 | −0.254 | 0.098 | 0.189 | |||||
Conditions B1 to B4 | Univariate analyses | Multivariate analyses | |||||||||
categorical variables | Comparisons | M | SD | 2.5% | 97.5% | Pr(OR > 1) | M | SD | 2.5% | 97.5% | Pr(OR > 1) |
name of illness | W vs. C | 1.006 | 0.134 | 0.779 | 1.303 | 0.518 | 1.008 | 0.133 | 0.781 | 1.301 | 0.524 |
(absent = 1. present = 2) | W vs. S | 0.702 | 0.068 | 0.582 | 0.847 | < 0.001 | 0.741 | 0.066 | 0.623 | 0.881 | < 0.001 |
W vs. A | 0.806 | 0.167 | 0.542 | 1.193 | 0.142 | 0.790 | 0.173 | 0.519 | 1.195 | 0.133 |
Note: Comparisons: W=Weak complementary (reference category), C = strictly Conventional, S=Strong complementary, A = Alternative
Results are presented as OR or Beta with a 95% CI, with the probability of the OR being above 1, Pr(OR > 1) or the Beta being above 0, Pr(Beta> 0)
Large Pr(OR > 1) or Pr(Beta> 0) values (e.g., > 0.95, or 0.99) indicate higher values for category 2 vs category 1 (see code of categorical variables). Conversely, small Pr(OR > 1) or Pr(Beta> 0) values (e.g., < 0.05, or 0.01), reflect higher category 1 vs category 2. Moreover, the probabilities Pr(OR > 1) or Pr(Beta> 0) can be interpreted as 1 - Pr(OR > 1) or as 1 – Pr(Beta< 0), respectively. Thus, probability values near 1 and 0 both indicate meaningful effects and are indicated in bold
Conditions A1 to A1 examined the influence of illness severity (in terms of frequency of relapse and intensity of symptoms)
Conditions B1 to B4 examined the influence of adding or not the name of illness in the clinical vignettes (comparing only the vignettes of illness with the highest degree of severity). Results of the uni- and multivariate analyses are not reported here and provided similar results as in Conditions A1 to A4