Table 4.

Effect of HNSCC on the repair kinetic. Whole blood of 12 HNSCC patients and 15 cancer free controls embedded in agarose was exposed to 9 Gy gamma radiation following overnight storage at 4 °C. 9-0, 9 Gy 0 minutes of repair; 9-15, 9 Gy 15 minutes of repair; 9-45, 9 Gy 45 minutes of repair; % Repair for 0 to 15 and 15 to 45 minutes was calculated as described in the methods section. P-values are based on a two sided t-test.

Dose (Gy) - Repair (min)	9-0	9-15	9-45	% Repair 0 to 15	% Repair 15 to 45
Cases (n = 12)
Mean ± SEM	46.88 ± 3.58	29.98 ± 2.71	19.04 ± 1.85	36.77 ± 2.14	22.26 ± 3.34
Median	51.13	31.38	18.52	35.46	27.32
Range	34.20	31.57	23.14	24.79	37.55
Controls (n = 15)
Mean ± SEM	43.27 ± 2.70	23.02 ± 1.80	13.93 ± 1.71	46.37 ± 2.99	21.84 ± 2.84
Median	44.87	21.70	11.95	41.48	20.53
Range	39.37	26.06	21.77	46.54	48.61
T-Test
p-values	0.43	0.04	0.06	0.02	0.93