Feedback GAP: pragmatic, cluster-randomized trial of goal setting and action plans to increase the effectiveness of audit and feedback interventions in primary care

Table 4 Baseline characteristics of patients

	Feedback plus worksheet	Feedback alone	ICC
Patients (total = 4,617)	2,157	2,460	-
IHD only	545 (25%)	637 (26%)	-
DM only	1,329 (62%)	1,534 (62%)	-
IHD and DM	283 (13%)	289 (12%)	-
Age (mean years ± sd)	67 ±14	65 ±14	-
Female	906 (42%)	1,251 (46%)	-
WT (mean kg ± sd)	88 ±22	90 ±29	0.047
Systolic BP (mean mmHg ± sd)	130 ±18	129 ±17	0.058
Diastolic BP (mean mmHg ± sd)	73 ±11	75 ±11	0.079
LDL (mean mmol/l ± sd)	2.3 ±0.9	2.3 ±0.9	0.053
HbA1c^ (mean% ± sd)	7.4 ±1.4	7.3 ±1.4	0.011
LDL at target~	665 (31%)	826 (34%)	0.051
BP at target~	1,019 (47%)	1,054 (43%)	0.071
BP test in 6 M	1,839 (85%)	1,831 (74%)	0.183
A1C test in 6 M^	1,267 (79%)	1,250 (69%)	0.079
FBG test in 24 M	1,904 (88%)	2,134 (87%)	0.091
LDL test in 12 M	1,574 (73%)	1,770 (72%)	0.096
ACR test in 12 M^	1,044 (65%)	1,232 (68%)	0.195
Rx ASA*	602 (73%)	657 (71%)	0.092
Rx Statin	1,463 (68%)	1,757 (71%)	0.051
Rx ACE/ARB^	1,153 (71%)	1,243 (68%)	0.068
Rx Beta blocker*	497 (60%)	562 (61%)	0.008
Rx insulin^	339 (21%)	391 (21%)	0.006
Composite process score (mean ± sd)	73 ±25	71 ±27	0.106

Legend: ICC = Intra-cluster correlation reported at physician-level, ^ = Calculated for patients with diabetes, * Calculated for patients with IHD, ~ = Target BP 130/80 for diabetes but 140/90 for IHD and Target LDL < 2, IHD = ischemic heart disease, BP = blood pressure, A1C = haemoglobin A1c, FBG = fasting blood glucose, LDL = low density lipoprotein cholesterol, ACR = urinary albumin-to-creatinine ratio, ASA = aspirin, ACE/ARB = angiotensin-modifying agent, kg = kilogram, sd = standard deviation.

ISSN: 1748-5908