Table 2.

4 × 2 contingency table for Ω shrinkage measure and Chi-square statistics.

	NMS	All other AEs	Total
Target drug D1 and D2	n111	n110	n11+
Only drug D1	n101	n100	n10+
Only drug D2	n011	n010	n01+
Neither drug D1 nor drug D2	n001	n000	n00+
Total	n++1	n++0	n+++

AEs adverse events, NMS neuroleptic malignant syndrome.