Table 5 |
||||||
Correlations in the 1980 Cohort Study | ||||||
Mean GCSE/O-level grade | Best three A-levels | First year BMS outcome | Second year BMS outcome | Finals outcome | On Specialist Register | |
Continuous censored | Continuous censored | Ordinal | Ordinal | Continuous | Binary | |
Mean GCSE/O-level grade | 1 | 0.406 | 0.192 | 0.209 | 0.175 | -0.022 |
P<0.001 | P<0.001 | P<0.001 | P = 0.002 | NS | ||
n = 562 | n = 542 | n = 528 | n = 313 | n = 391 | ||
Best three A-levels | 0.438 ± 0.035 (0.358 to 0.503) | 1 | 0.190 | 0.249 | 0.307 | 0.045 |
P<0.001 | P<0.001 | P<0.001 | NS | |||
n = 562 | n = 548 | n = 328 | n = 403 | |||
First year BMS outcome | 0.226 ± 0.041 (0.130 to 0.298) | 0.235 ± 0.042 (0.150 to 0.318) | 1 | 0.416 | 0.215 | 0.005 |
P<0.001 | P<0.001 | NS | ||||
n = 548 | n = 329 | n = 397 | ||||
Second year BMS outcome | 0.235 ± 0.047 (0.148 to 0.338) | 0.293 ± 0.054 (0.174 to 0.379) | 0.512 ± 0.038 (0.434 to 0.582) | 1 | 0.359 | 0.080 |
P<0.001 | NS | |||||
n = 329 | n = 399 | |||||
Finals outcome (London only) | 0.182 ± 0.051 (0.081 to 0.280) | 0.323 ± 0.052 (0.229 to 0.426) | 0.244 ± 0.064 (0.107 to 0.357) | 0.410 ± 0.052 (0.304 to 0.511) | 1 | 0.084 |
NS | ||||||
n = 261 | ||||||
On Specialist Register | -0.031 ± 0.062 (-0.146 to 0.090) | 0.054 ± 0.063 (-0.064 to 0.176) | 0.007 ± 0.079 (-0.142 to 0.156) | 0.119 ± 0.077 (-0.052 to 0.255) | 0.104 ± 0.074 (-0.038 to 0.250) | 1 |
Abbreviations: A-level, Advanced level; BMS, Basic medical sciences; GCSE, General Certificate of Secondary Education; MCMC, Markov Chain Monte Carlo; NS, not significant; O-level, Ordinary level.
^{a}Correlations in entrants to medical school between measures of academic and professional attainment attainment in the 1980 Cohort study.
^{b}Correlations above the diagonal are simple Pearson correlations (for example point-biserials, φ correlations. where a measure is binary or ordinal), and have different n values for various reasons.
^{c}Correlations shown in bold are significant at P<0.05.
^{d}Correlations in the lower triangle were calculated taking account of censoring, and for ordinal values are equivalent to tetrachoric/polychoric correlations.
^{e}Values are mean ± SD (95% CI) unless otherwise stated, and the 95% confidence intervals are the result of the final 2000 MCMC steps in a chain of 5000.
McManus et al.
McManus et al. BMC Medicine 2013 11:242 doi:10.1186/1741-7015-11-242