Table 1

Baseline characteristics

	Intervention sites (N=5)	Control sites (N=6)	p Values*
Patient factors
N admissions during study period	1147	1017
Mean (SD, range) age	66.04 (10.69) 26–98	68.31 (11.43) 34–98	<0.001
N (%) White	681 (59.4)	633 (62.2)	0.17
N (%) Male	1110 (96.8)	976 (96.0)	0.32
Mean (median, range) NIHSS	5.67 (5.93) 0–38	5.67 (5.60) 0–38	0.99
Hospital factors
Mean (SD) annual stroke admissions (pre-I)	92.00 (56.61)	59.17 (18.50)	0.27
Mean (SD) annual stroke admissions (post-I)	91.60 (52.11)	73.56 (15.29)	0.49
Local data collection programme at baseline N (%)	2 (40%)	2 (33%)	1.00
Mean (SD) self-rating of stroke care pre-I	7.91 (1.71)	7.13 (0.76)	0.34
Mean (SD) DVT passing pre-I	0.82 (0.12)	0.90 (0.06)	0.16
Mean (SD) dysphagia passing pre-I	0.51 (0.23)	0.34 (0.20)	0.23
Mean (SD) overall composite quality indicator pre-I	0.71 (0.12)	0.68 (0.07)	0.66

*p Values are from Student's t test/Wilcoxon non-parametric tests for continuous variables and χ² tests for categorical variables.
DVT, deep vein thrombosis; NIHSS, National Institutes of Health Stroke Scale; post-I, post-implementation; pre-I, pre-implementation.