. 2017 Dec 5;40(1):126–134. doi: 10.1007/s11096-017-0575-7

Table 2.

Mean number of drug-associated symptoms at follow-up

	Intervention N = 78	Control N = 67	Differences between groups (IG vs. CG)
DAS, mean number per patient (total number) (primary outcome)	4.0 (313)	5.0 (333)	Incidence rate ratio 0.90; 95% CI 0.62–1.33^a
DAS persisting at follow-up, mean number per patient (total number)	2.2 (171)	2.6 (174)	Incidence rate ratio 0.85; 95% CI 0.55–1.30^a
Number of patients reporting at least one DAS (%)	56 (72)	51 (76)	Odds ratio 0.85; 95% CI 0.38–1.88^b

DAS drug-associated symptoms, IG intervention group, CG control group, CI confidence interval

^aNegative-binomial log linear regression analysis adjusted for number of DAS at baseline, sex, age and number of drugs in use at baseline

^bLogistic regression analysis adjusted for differences at baseline, sex, age and number of drugs in use at baseline