When the covariate was changed to early-onset alcohol use, the results of the multivariable multinomial logistic regression analyses were very similar to Table 3 except that the aOR of early-onset alcohol use failed to reach statistical significance for any ketamine use in both Model 1 and Model 2 (Additional file 1 : Table S7).
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Mis-anaesthetized society: expectancies and recreational use of ketamine in Taiwan.
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The sentences
When the interaction terms between early-onset tobacco (EOT) use and binary ketamine expectancies, i.e., High Positive expectancies (HPE) and High Negative expectancies (HNE), were added to Model 1, the two interaction terms, EOT x HPE and EOT x HNE, did not reach statistical significance (Additional file 1 : Table S8).