Table 2. Association rules for complications after the onset of depression for patients with X = other anxiety disorders and Y = sleeping disorder.

Rule	Medical history 1	Medical history 2	Support (%)	Confidence (%)	Lift
1	Multiple and unspecified acute upper respiratory tract infections	Gastritis and duodenal inflammation	16.6	59.3	1.6
2	Vasomotor rhinitis and allergic rhinitis	Gastritis and duodenal inflammation	15.9	59.5	1.6
3	Multiple and unspecified acute upper respiratory tract infections	Vasomotor rhinitis and allergic rhinitis	14.4	51.4	1.9
4	Vasomotor rhinitis and allergic rhinitis	Multiple and unspecified acute upper respiratory tract infections	14.4	53.9	1.9
5	Other liver diseases	Gastritis and duodenal inflammation	13.8	57.4	1.6