Table 4.

Equation of the MED-REC predictor estimating the probability of having at least 1 clinically relevant discrepancy. The shape of the formula is , where P is the probability of having at least 1 clinically relevant discrepancy, c is the intercept, xi is the predictor variable and βi is the corresponding β coefficient. For each predictor variable, the β coefficient, odds ratio, 95% CI, and the P value are presented.

Variable			Coefficient		ORa (95% CI)		P value
Intercept			–1.82		0.16 (0.08 to 0.30)		<.001
Age (years)			0.012		1.01 (1.00 to 1.02)		.02
Residence of the patient before admission (reference category: home)
	Residence of the patient (nursing home)	–0.96		0.38 (0.15 to 0.90)		.03
	Residence of the patient (other)	–0.79		0.45 (0.06 to 2.25)		.36
	Number of drugs reported by the EDb physician	–0.094		0.91 (0.83 to 0.99)		.04
	Number of “ATC A”c drugs reported by the ED physician (alimentary tract and metabolism)	0.276		1.32 (1.13 to 1.55)		<.001
	Number of “ATC C” drugs reported by the ED physician (cardiovascular system)	0.167		1.18 (1.02 to 1.37)		.03
	Number of “ATC N” drugs reported by the ED physician (nervous system)	0.206		1.23 (1.06 to 1.42)		.005
	Number of “ATC P” drugs reported by the ED physician (antiparasitic products insecticides and repellents)	1.712		5.54 (1.07 to 41.4)		.05
	Number of “ATC R” drugs reported by the ED physician (respiratory system)	0.269		1.31 (1.09 to 1.58)		.004

^aOR: odds ratio.

^bED: emergency department.

^cATC: Anatomical Therapeutic Chemical.