Table 4: Multinomial regression results showing the effect of neighbourhood variables on the relative risk of being a surgeon cluster versus a gastroenterologist cluster
VariableRR (95% CI)
Rural98.95 (15.3-427.2)
Socioeconomic quartile
    1Reference
    22.39 (1.32-3.99)
    30.94 (0.51-1.57)
    40.35 (0.18-0.61)
Distance, every 50 km1.37 (1.10-1.77)

Note: CI = confidence interval, RR = relative risk.