The aim of this study was to investigate clinical (e.g. symptom
levels), demographic (e.g. age) and therapy process-related (e.g.
adherence) predictors in ICBT and IBSM for severe health anxiety
using data from an RCT. Employing a replication design, we hypothesized
that higher baseline health anxiety would predict larger
improvements but higher end state health anxiety. Depressive
symptoms were expected to be associated with less improvement
as well as with higher end state health anxiety. We also hypothesized
that more completed modules would predict larger improvements
and less end state health anxiety. Based on the results
from the previous predictor study of ICBT (Hedman et al., 2013), the
remainder of tested factors was hypothesized to have little predictive
value. Somatosensory amplification, self-efficacy, mindfulness,
working alliance and reading skills, were analyzed within an
exploratory framework