Multiple logistic regression for offers to medical school 2007–2014
Model 1, R2=0.22 | Model 2, R2 =0.21 | Model 3, R2 =0.22 | Model 4, R2 =0.22 | |||||||||
OR | Lower | Upper | OR | Lower | Upper | OR | Lower | Upper | OR | Lower | Upper | |
UKCAT | 1.032 | 1.032 | 1.033 | 1.032 | 1.032 | 1.033 | 1.032 | 1.032 | 1.033 | 1.032 | 1.032 | 1.033 |
Graduate status | ||||||||||||
Non-graduate (default) | 1 | 1 | 1 | 1 | ||||||||
Graduate | 0.429 | 0.399 | 0.461 | 0.438 | 0.419 | 0.458 | 0.441 | 0.421 | 0.463 | 0.450 | 0.432 | 0.468 |
Gender | ||||||||||||
Female (default) | 1 | 1 | 1 | |||||||||
Male | 0.830 | 0.803 | 0.857 | 0.830 | 0.803 | 0.857 | 0.830 | 0.804 | 0.857 | 0.830 | 0.804 | 0.857 |
Ethnicity | ||||||||||||
White (default) | 1 | 1 | 1 | 1 | ||||||||
Asian | 0.781 | 0.750 | 0.813 | 0.780 | 0.748 | 0.812 | 0.774 | 0.741 | 0.809 | 0.780 | 0.748 | 0.812 |
Black | 0.574 | 0.527 | 0.625 | 0.572 | 0.525 | 0.623 | 0.544 | 0.495 | 0.598 | 0.572 | 0.525 | 0.623 |
Mixed | 0.823 | 0.756 | 0.896 | 0.823 | 0.756 | 0.896 | 0.808 | 0.736 | 0.888 | 0.823 | 0.756 | 0.896 |
Other | 0.804 | 0.718 | 0.900 | 0.803 | 0.717 | 0.899 | 0.818 | 0.722 | 0.927 | 0.803 | 0.717 | 0.900 |
IMD | ||||||||||||
I—Most affluent (default) | 1 | 1 | 1 | 1 | ||||||||
II | 0.917 | 0.876 | 0.960 | 0.921 | 0.884 | 0.960 | 0.921 | 0.884 | 0.960 | 0.921 | 0.884 | 0.960 |
III | 0.866 | 0.823 | 0.911 | 0.869 | 0.830 | 0.909 | 0.869 | 0.830 | 0.909 | 0.868 | 0.830 | 0.909 |
IV | 0.775 | 0.731 | 0.823 | 0.808 | 0.766 | 0.852 | 0.806 | 0.765 | 0.850 | 0.806 | 0.764 | 0.850 |
V—Least affluent | 0.707 | 0.657 | 0.760 | 0.724 | 0.679 | 0.773 | 0.723 | 0.678 | 0.771 | 0.723 | 0.677 | 0.771 |
Parental occupation NS-SEC | ||||||||||||
I—Managerial and professional occupations (default) | 1 | 1 | 1 | |||||||||
II—Intermediate occupations | 0.891 | 0.828 | 0.960 | 0.879 | 0.808 | 0.956 | 0.891 | 0.828 | 0.960 | 0.891 | 0.827 | 0.960 |
III—Small employers and own account occupations | 0.854 | 0.797 | 0.914 | 0.829 | 0.768 | 0.894 | 0.852 | 0.796 | 0.912 | 0.853 | 0.796 | 0.913 |
IV—Lower supervisory and technical occupations | 0.768 | 0.684 | 0.862 | 0.709 | 0.621 | 0.809 | 0.766 | 0.683 | 0.860 | 0.767 | 0.683 | 0.860 |
V—Routine and semiroutine occupations | 0.766 | 0.693 | 0.847 | 0.732 | 0.654 | 0.820 | 0.765 | 0.692 | 0.845 | 0.764 | 0.691 | 0.844 |
Graduate status by IMD, P = 0.69 | ||||||||||||
Graduate by IMD I—most affluent neighbourhood (default) | 1 | |||||||||||
Graduate vs IMD_II | 1.030 | 0.922 | 1.150 | |||||||||
Graduate vs IMD_III | 1.021 | 0.909 | 1.147 | |||||||||
Graduate vs IMD_IV | 1.189 | 1.049 | 1.348 | |||||||||
Graduate vs IMD_V—least affluent neighbourhood | 1.112 | .957 | 1.293 | |||||||||
Graduate status by parental occupation (NS-SEC), P = 0.22 | ||||||||||||
Graduate by NS-SEC-I (default) | 1 | |||||||||||
Graduate by NS-SEC-II | 1.068 | 0.893 | 1.276 | |||||||||
Graduate by NS-SEC-III | 1.149 | 0.974 | 1.355 | |||||||||
Graduate by NS-SEC-IV | 1.383 | 1.064 | 1.797 | |||||||||
Graduate by NS-SEC-V | 1.211 | 0.959 | 1.530 | |||||||||
Graduate status by ethnicity, P = 0.10 | ||||||||||||
Graduate by white (default) | 1 | |||||||||||
Graduate by Asian | 1.039 | 0.931 | 1.160 | |||||||||
Graduate by black | 1.300 | 1.060 | 1.593 | |||||||||
Graduate by mixed | 1.101 | 0.885 | 1.371 | |||||||||
Graduate by other ethnic group | 0.900 | 0.668 | 1.211 |
Model 1: shows the interaction of graduate status by area deprivation (IMD), note non-significant value of P=0.69.
Model 2: shows the interaction of graduate status by parental occupation (NS-SEC), note non-significant value of P=0.22.
Model 3: shows the interaction of graduate status by ethnicity, note the non-significant value of P=0.10.
Model 4: is the final model of all covariates, note all values are statistically significant, P<0.001.
IMD, Index of Multiple Deprivation; NS-SEC, National Statistics Socio-Economic Classification; UKCAT, UK Clinical Aptitude Test.