Effect of a web-based audit and feedback intervention with outreach visits on the clinical performance of multidisciplinary teams: a cluster-randomized trial in cardiac rehabilitation

Table 4 Concordance rates and difference in concordance between study groups for the four CR therapies (both prescribed and attended therapies) (secondary outcome) (n = 14,874)

CR therapies	Control group			Intervention group			P value
CR therapies	Crude baseline concordance	Crude follow-up concordance	Adjusted concordance trend [OR (95% CI)]	Crude baseline concordance	Crude follow-up concordance	Adjusted concordance trend [OR (95% CI)]	P value
Psychosocial rehabilitation (study group A)
Education (prescribed)	73.4% (663/903)	66.0% (3031/4591)	0.66 (0.43 to 1.01)	85.8% (1727/2012)	85.8% (6300/7341)	0.62 (0.43 to 0.89)	0.830
Lifestyle (prescribed)	28.9% (261/903)	24.9% (1145/4591)	0.49 (0.14 to 1.80)	62.5% (1258/2012)	61.2% (4489/7341)	0.37 (0.15 to 0.92)	0.716
Education (attended)^a	74.6% (617/827)	68.3% (2780/4071)	0.98 (0.55 to 1.74)	53.7% (720/1342)	52.0% (2566/4934)	0.51 (0.32 to 0.81)	0.099
Lifestyle (attended)^a	26.3% (168/640)	28.2% (824/2922)	1.19 (0.74 to 1.91)	43.5% (876/2012)	51.5% (3777/7341)	0.83 (0.64 to 1.08)	0.187
Physical rehabilitation (study group B)
Exercise (prescribed)	72.1% (1450/2012)	80.0% (5869/7341)	2.52 (1.03 to 6.16)	41.2% (372/903)	49.4% (2269/4591)	0.85 (0.24 to 3.07)	0.176
Relaxation (prescribed)	88.9% (1789/2012)	92.8% (6811/7341)	0.91 (0.70 to 1.17)	78.5% (709/903)	80.1% (3679/4591)	1.03 (0.79 to 1.35)	0.447
Exercise (attended)^a	61.2% (935/1528)	61.3% (3003/4898)	0.82 (0.61 to 1.09)	46.8% (387/827)	49.7% (2022/4071)	0.92 (0.60 to 1.39)	0.565
Relaxation (attended)^a	57.0% (898/1575)	48.3% (2695/5580)	0.44 (0.23 to 0.83)	75.4% (681/903)	74.4% (3416/4591)	0.97 (0.47 to 2.01)	0.147

We used Multiple Imputation by Chained Equations to handle missing data. Baseline period: first 3 months of study period; follow-up period: complete study period minus the baseline period. Performance trends: odds ratios associated with a 1-year study follow-up, adjusted for patients’ age, gender, indication for CR, and centres’ type and size. P value: probability of trends being similar in intervention and control group
Abbreviations: CI confidence interval, CR cardiac rehabilitation, OR odds ratio
^aWe excluded centres with incomplete data for this therapy. The number of centres and patients included in the analyses was therefore as follows: education: 12 centres, 11,174 patients; lifestyle modification: 15 centres, 12,649 patients; exercise training: 16 centres, 12,915 patients; and relaxation and stress management training: 15 centres, 11,324 patients

ISSN: 1748-5908