Table 4. Multivariate regression analysis for weekly number of procedures (n <4) for CT2/ST2.

	Standard error	Hazard ratio	95% CI: Lower bound	95% CI: Upper bound	P-value
Age	0.2	1.5	0.9	2.3	0.07
Gender	0.3	0.7	0.4	1.4	0.4
Ethnicity	0.1	0.9	0.7	1.2	0.5
Deanery	0.1	1.4	1.1	1.7	0.01
Specialty	0.06	1.01	0.9	1.1	0.8
CEPOD	0.2	0.8	0.5	1.3	0.4
Exposure	0.2	0.9	0.7	1.3	0.9
MRCS status	0.1	1.2	0.9	1.5	0.2
Medical School	0.04	0.9	0.9	1.04	0.3
Locum job	0.4	0.9	0.4	1.8	0.7
Research job	0.5	1.4	0.5	3.6	0.5