Table 3.

Crude and adjusted odds ratios (RR) of CDAD associated with NSAID exposure in the 90 days prior to the index date

NSAIDS exposure in the 90 days prior to the index date	Cases	Controls	Crude	Adjusted*
			RR	RR	95% CI
Any traditional NSAID	462 (34.0)	3 709 (28.4)	1.27	0.97	0.86, 1.10
Diclofenac	96 (7.1)	547 (4.2)	1.63	1.35	1.10, 1.67
Ibuprofen	42 (3.1)	446 (3.4)	0.91	0.85	0.62, 1.15
Naproxen	12 (0.88)	108 (0.83)	1.06	0.99	0.56, 1.75
Other traditional NSAIDs	38 (2.8)	262 (2.0)	1.36	1.10	0.79, 1.51
Cox-2 inhibitors	11 (0.81)	116 (0.89)	0.92	0.77	0.42, 1.39
Acetylsalicylic acid	319 (23.5)	2 656 (20.3)	1.18	0.88	0.77, 1.01

^*Adjusted for gender, comorbidities, prescription of antibiotics, H₂-receptor antagonists, proton pump inhibitors and oral steroids.