Table 5. Results of pairwise comparisons of δ¹³C ‰ values between human samples from different time periods (E = Early; M = Middle; L = Late).

	E. Neolithic*	E. Neolithic	M. Neolithic	L. Neolithic	E. Copper Age	M. Copper Age	L. Copper Age	E. Bronze Age	L. Bronze Age
E. Neolithic	<0.001
M. Neolithic	<0.001	0.158
L. Neolithic	<0.001	0.926	0.490
E. Copper Age	0.022	0.148	0.093	0.530
M. Copper Age	<0.001	0.485	1.000	0.966	0.346
L. Copper Age	<0.001	1.000	0.953	1.000	0.283	0.979
E. Bronze Age	<0.001	0.925	1.000	0.997	0.265	1.000	0.985
L. Bronze Age	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001
E. Iron Age	<0.001	<0.001	<0.001	<0.001	0.006	<0.001	<0.001	<0.001	<0.001

All p-values correspond to HSD Tukey post-hoc comparisons, except for those from E. Copper Age samples (Mann-Whitney U test; in italics), as they do not follow a normal distribution (S3 Table). N = 199; E. Neolithic*: n = 2; E. Neolithic: n = 14; M. Neolithic: n = 71; L. Neolithic: n = 47; E. Copper Age: n = 26; M. Copper Age: n = 20; L. Copper Age: n = 3; E. Bronze Age: n = 2; L. Bronze Age: n = 11; E. Iron Age: n = 3. Values represent p-values (p<0.05 in bold).

*Early Neolithic samples from Tiszaszőlős-Domaháza site were treated separately for comparison.