Table 5.

Estimated regression coefficients for length of stay (log transformed)

	Including ethnicity			Model excluding ethnicity
	Estimate	95% CI	P value	Estimate	95% CI	P value
Asian	0.944	0.643 to 1.39	0.765
Black	1.38	1.04 to 1.82	0.0252
Mixed	0.706	0.442 to 1.13	0.142
Other	1.46	0.853 to 2.5	0.164
IMD quintile	0.913	0.827 to 1.01	0.0727	0.854	0.777 to 0.939	0.00141
BMI	0.964	0.939 to 0.989	0.00588	0.975	0.95 to 1	0.0592
Age (months)	1	1 to 1	0.0368	1	1 to 1	0.0625
Gender (male)	1.05	0.833 to 1.33	0.656	1.04	0.812 to 1.33	0.747

Likelihood ratio test when including ethnicity versus not including ethnicity p=0.01.

BMI, body mass index; IMD, Index of Multiple Deprivation.