Figure 3
Hazard ratio for primary outcome according to various subgroups using sotalol as a reference. The sotalol group was used as a reference group. AADs antiarrhythmic drugs, mCCI modified Charlson comorbidity index; IPTW was estimated using logistic regression with patient age, sex, CHA2DS2-VASc score, mCCI, number of AADs in baseline, baseline AADs, comorbidity, concomitant drugs, hospital type at index date, insurance type and index year. P-value was derived from Cox regression with IPTW in each subgroup. P-for-interaction was value for interaction term with treatment and each subgroups.
