TABLE 2.

P‐values for the post hoc δ¹³C differences for all populations. The significance level is 0.05 and the significance values have been adjusted by the Bonferroni correction for multiple tests. Contains isotope data, produced by the British Geological Survey, UKRI

Sample 1–sample 2	Calculus–enamel δ13C	Calculus–bone δ13C	Enamel–bone δ13C
Modern–post‐medieval	0.015	0.796	0.030
Modern–medieval	0.014	0.000	0.000
Post‐medieval–medieval	0.847	0.002	0.010