RESULTS	At 10 years , the local-regional failure rates were 28.8 % vs 22.3 % ( P = .10 ) , disease-free survival was 19.1 % vs 20.1 % ( P = .25 ) , and overall survival was 27.0 % vs 29.1 % ( P = .31 ) for patients treated by RT vs RT + CT , respectively .\