Table 3.

Proportions and the gross and adjusted ratios of chances of improvement depending on group.

Predictor		N	n	Proportions (%)	cOR (95% CI)	aOR (95% CI)	P (LR)
Group	2	51	40	78.4 (64.7-88.7)	1.0	1.0
	1	55	48	87.3 (75.5-94.7)	1.89 (0.67-5.32)	2.05 (0.65-6.43)	0.318
	3	67	8	11.9 (5.3-22.2)	0.04 (0.01-0.10)	0.04 (0.01-0.11)	<0.0001

N: total number in the group; n: number of improvements in the group, proportion of improvements; cOR: rough ratio of chances; aOR: adjusted ratio of chances; P (LR): p value determined by logistic regression.