Table 4.

Modelling of failure to complete tests

	Univariate modelling			Multivariate modelling
	OR	95% CI	P-value	OR	95% CI	P-value
Test type (blood test is reference)			0.262^a
Imaging	2.62	0.73 to 9.44	0.141
Other tests	2.20	0.47 to 10.27	0.316
Time frame given	0.77	0.30 to 2.02	0.601
Admission length	1.01	0.99 to 1.04	0.363
Receipt time estimate	0.99	0.91 to 1.07	0.720
Specialty surgical	1.18	0.21 to 6.55	0.849
GP ratio to population	1.00	1.00 to 1.00	0.952
EMIS Web IT system	2.98	1.12 to 7.91	0.029	3.67	1.30 to 10.35	0.014
Training practice status	2.64	0.70 to 9.92	0.151
Practice size (small is reference)			0.210^a
Medium practice size	0.41	0.11 to 1.55	0.190
Large practice size	0.24	0.05 to 1.19	0.081
IMD of practice	1.03	0.99 to 1.08	0.193
Urban practice	2.98	0.35 to 25.25	0.316
QOF score of practice	0.97	0.84 to 1.11	0.640
CQC rating (1 = outstanding)	1.69	0.71 to 4.02	0.235
Patient sex, male	2.30	0.87 to 6.07	0.091	2.95	1.04 to 8.36	0.042
Number of medicines changes	0.89	0.74 to 1.08	0.240
Hospital (Nottingham QMC is reference)			0.189^a
Central Manchester Hospital	3.33	0.84 to 13.17	0.086
University of Coventry Hospital	2.40	0.70 to 8.18	0.162
Other hospitals	0.73	0.14 to 3.82	0.707
Follow-up on phone	2.06	0.76 to 5.57	0.154

↵a ANOVA P-values are from a likelihood ratio test, the remainder are Wald P-values. ANOVA = analysis of variance. CQC = Care Quality Commission. EMIS = EMIS = Egton Medical Information Systems. IMD = index of multiple deprivation. OR = odds ratio. QMC = Queen’s Medical Centre. QOF = Quality and Outcomes Framework.