Among women 65 years , node negative patients had 94.4 % 5-y OS and 96.3 % 5-y CSS vs 74.3 % 5-y OS and 74.3 % 5-y CSS for node positive patients ( P = .009 and P = .002 , respectively ) , while among women > 65 y , node negative patients had 75.7 % 5-y OS and 83.6 % 5-y CSS vs 74.1 % 5-y OS and 83.3 % 5-y CSS for node positive patients ( P = .55 and P = .58 , respectively ) .