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. Author manuscript; available in PMC: 2010 Dec 14.
Published in final edited form as: Clin Cancer Res. 2009 Dec 15;15(24):7658–7665. doi: 10.1158/1078-0432.CCR-09-1433

Table 3.

Status Two and Five Years Post-Surgery

Plasmid % Tumor % Margins by Light Microscopy Type of Mutation
All Negative Any Positive Conservative Disruptive
<0.15 ≥0.15 <0.5 ≥0.5
Patients 54 41 60 35 85 10 61 34
Local Failure-free Survival Events 13 15 13 15 25 3 15 13
2-Yr Local Failure-free Survival 81.7% 65.3% 83.5% 58.9% 75.4% 70.0% 78.0% 68.7%
95% CI 71.5 – 93.3% 51.7 – 82.6% 74.2 – 94.0% 44.0 – 79.0% 66.3 – 85.7% 46.7 – 100.0% 67.7 – 89.9% 54.3 – 86.9%
5-Yr Local Failure-free Survival 68.4% 65.3% 70.5% 58.9% 66.3% 70.0% 68.2% 64.1%
95% CI 54.8 – 85.4% 51.7 – 82.6% 57.4 – 86.7% 44.9 – 79.0% 55.3 – 79.4% 46.7 – 100.0% 55.3 – 84.1% 48.9 – 84.1%
Logrank p 0.13 0.02 0.80 0.18

Deaths from Head & Neck Cancer 17 16 21 12 29 4 17 16
2-Yr Cancer-specific Survival 75.7% 62.3% 74.8% 60.9% 69.4% 77.8% 77.1% 58.6%
95% CI 64.5 – 88.7% 47.8 – 81.0% 64.2 – 87.2% 45.1 – 82.3% 59.6 – 80.7% 54.9 – 100.0% 66.4 – 89.5% 43.6 – 78.7%
5-Yr Cancer-specific Survival 63.8% 51.7% 59.7% 56.9% 60.0% 51.9% 66.1% 48.3%
95% CI 50.5 – 80.7% 36.8 – 72.4% 46.9 – 76.0% 40.9 – 79.1% 49.2 – 73.3% 26.7 – 100.0% 53.3 – 81.9% 33.4 – 69.7%
Logrank p 0.28 0.72 0.88 0.69

Deaths from Any Cause 32 28 36 24 54 6 36 24
2-Yr Overall Survival 62.6% 47.2% 62.8% 44.2% 55.5% 60.0% 59.4% 50.0%
95% CI 50.8 – 77.0% 33.9 – 65.6% 51.6 – 76.4% 30.3 – 64.4% 45.7 – 67.3% 36.2 – 99.5% 48.1 – 73.4% 35.7 – 70.0%
5-Yr Overall Survival 40.1% 34.1% 38.6% 35.3% 37.6% 40.0% 39.9% 34.6%
95% CI 28.2 – 56.9% 22.0 – 52.7% 27.3 – 54.4% 22.4 – 55.7% 28.2 – 50.2% 18.7 – 85.5% 28.8 – 55.3% 21.6 – 55.3%
Logrank p 0.25 0.31 0.69 0.36