Table 2. Log-rank test for the probability curves for absence of poor clinical progression as a function of the variables: sleep quality, sleep duration, depression and prognostic factors, in women with breast cancer (n=114) Campinas, SP, Brazil, 2013-2014.

Variable	P -value*
Sleep Quality	.8015
Sleep Duration	.0173
Depression	.1378
Tumor Stage	.6787
Lymphatic invasion	.7201
Estrogen receptor	.3497
Progesterone receptor	.8373
HER2† status	.7816

*Log Rank Test

†HER2: Human Epidermal growth factor Receptor-type 2