Model	DNA repaired r=0.472		t_1/2 r=0.503		OGG1 act r=0.381
Model	ήp	P values	ήp	P values	ήp	P values
Age	0.044	0.684	0.022	0.884	0.187	0.097
Sex	0.114	0.320	0.148	0.191	0.176	0.088
Smoking	0.228	0.041	0.257	0.071	0.161	0.367
IR dose	0.077	0.497	0.063	0.557	0.212	0.045
Family history of cancer	0.032	0.760	0.055	0.606	0.077	0.509
Sex–smoking	0.187	0.255	0.214	0.166	0.164	0.346
Sex–family history of cancer	0.089	0.444	0.114	0.326	0.130	0.254
Smoking–family history of cancer	0.313	0.019	0.369	0.004	0.173	0.307
Sex–smoking–family history of cancer	0.155	0.387	0.237	0.110	0.105	0.654

Partial eta (ήp) indicates the coefficient of correlation and significances (p) are highlighted in bold.
ENDO III, endonuclease III; FPG, formamidopyrimidine glycosylase; IR, ionising radiation; OGG1 act, 8-oxoguanine glycosylase 1 activity; SBs, strand breaks; t_1/2, half time to repair DNA damage.