Table 3.

Risk for Death or Recurrence Associated with Female Sex (Segregated by Cancer Site).

Matched pairs
	Males		Risk of Recurrence or Death Associated with Female Sex (95% confidence interval); P Value*	P Value from Log-rank Test of Equality of Survival Curves
Females	Recurrence or Death	No Event
Oral Cavitv (131 pairs†*)
No recurrence	19	91
Recurrence	5	16	0.8 (0.4–1.7); P = 0.736	0.575
Alive	17	96
Death from cancer	4	14	0.8 (0.4–1.8); P = 0.720	0.651
Alive	17	82
Death from any cause	12	20	1.2 (0.6–2.4); P = 0.743	0.868
Oropharynx (92 pairs)
No recurrence	9	72
Recurrence	3	8	0.9 (0.3–2.6); P = 1.0	0.762
Alive	8	74
Death from cancer	3	7	0.9 (0.3–2.8); P = 1.0	0.773
Alive	13	63
Death from any cause	8	8	0.6 (0.2–1.6); P = 0.383	0.446
Larynx/Hypopharynx (62 pairs)
No recurrence	10	41
Recurrence	3	8	0.8 (0.3–2.3); P = 0.815	0.651
Alive	7	49
Death from cancer	1	5	0.7 (0.2–2.6); P = 0.774	0.662
Alive	6	40
Death from any cause	7	9	1.5 (0.5–5.1); P = 0.607	0.537

^*McNemar's chi-squared test.

^†One pair having simultaneous primaries of the oral cavity and the oropharynx were omitted from this analysis segregated by site.