Table 4. Bivariate analysis of factors associated with potential drug-drug interactions among the study population.

Variables	Categories	Presence of DDIs [n(%)]	Absence of DDIs [n(%)]	χ 2	p-value
Sex	Male	56 (56.5)	21 (42.8)	2.46	0.116
	Female	43 (43.4)	28 (57.1)
Age (in years)	≤20	5 (5.05)	5 (10.2)	13.82	0.008 *
	21–40	20 (20.2)	22 (44.8)
	41–60	21 (21.2)	9 (18.3)
	61–80	33 (33.3)	8 (16.3)
	81 and above	20 (20.2)	5 (34.6)
Comorbidities	Present	69 (69.6)	15 (30.6)	20.40	<0.001 **
	Absent	30 (30.3)	34 (69.3)
Hospital stay (in days)	1–5	20 (20.2)	17 (34.6)	7.24	0.027 *
	6–10	55 (55.5)	28 (57.1)
	≥11	24 (24.2)	04 (8.1)
Number of drugs prescribed	2–5	9 (9.09)	19 (38.07)	23.03	<0.001 **
	6–9	45 (45.04)	22 (44.8)
	≥10	45 (45.4)	8 (16.3)

DDIs: drug-drug interactions.

^*p<0.05 statistically significant.

^**p<0.01 highly statistically significant.