Table 2.

Cox regression analyses, showing adjusted and unadjusted hazard ratios for IPAQ categories

Outcome	IPAQ category	Adjusteda hazard ratios (95% CI)	Unadjusted hazard ratios (95% CI)
PFS	moderate vs. low	1.07 (0.88, 1.32)	1.02 (0.84, 1.24)
	high vs. low	1.11 (0.85, 1.44)	1.18 (0.92, 1.52)
OS	moderate vs. low	0.95 (0.75, 1.21)	0.93 (0.74, 1.16)
	high vs. low	0.71 (0.51, 0.97)	0.79 (0.58, 1.08)

PFS Progression free survival, OS Overall survival, IPAQ International Physical Activity Questionnaire, CI Confidence interval

^aHazard ratios were adjusted for age, body mass index, molecular subtype, therapy line and metastasis group. Since the likelihood ratio tests did not show a significant impact of IPAQ on PFS or OS, the confidence intervals should be interpreted with caution. That is, a confidence interval that does not include 1 does not imply that there is a significant difference in survival