Secondary and sensitivity analyses
SECONDARY
In a secondary analysis, we will classify each symptom score into low (0–6) or high (7–10) and estimate a model similar to (1) and (2) using a logit link. In sensitivity analyses, we will replicate the main analyses where models (1) and (2) have been modified to include (a) time as a calendar week, implemented with splines; (b) an interaction between time (measured by 