. Author manuscript; available in PMC: 2023 Dec 4.

Published in final edited form as: Cancer. 2022 Nov 11;129(2):296–306. doi: 10.1002/cncr.34531

Table 3:

Adjusted quantile regression estimates of MVPA, light-intensity physical activity, steps, and sedentary time at the 25th, 50th, and 75th HRQoL and fatigue percentiles at baseline in AMBER cohort study (N=1422)

Activity / sedentary time	Physical Composite Score
Activity / sedentary time	p25 β (95% CI)	p50 β (95% CI)	p75 β (95% CI)
MVPA	2.14 (1.39, 2.89)^**	1.98 (1.41, 2.54)^**	1.25 (0.43, 2.08)^**
MVPA 10-min bouts	3.72 (2.52, 4.91)^**	3.12 (1.76, 4.48)^**	2.48 (1.13, 3.82)^**
Light-intensity physical activity	0.6 (0.22, 0.99)^**	0.53 (0.15, 0.91)^**	0.13 (−0.3, 0.57)
Steps^†	0.43 (0.29, 0.57)^**	0.50 (0.34, 0.66)^**	0.40 (0.24, 0.57)^**
Sedentary time	.01 (−0.30, 0.32)	0.0 (−0.28, 0.28)	−0.12 (−0.43, 0.19)
	Mental Composite Score
	p25 β (95% CI)	p50 β (95% CI)	p75 β (95% CI)
MVPA	1.73 (0.03, 3.43)^*	1.07 (0.09, 2.05)^*	0.68 (−0.17, 1.54)
MVPA 10-min bouts	−0.16 (−2.55, 2.23)	1.27 (−0.57, 3.1)	0.01 (−1.26, 1.28)
Light-intensity physical activity	0.81 (0.1, 1.52)^*	0.69 (0.19, 1.18)^**	0.44 (0.11, 0.77)^**
Steps	0.34 (0.08, 0.59)^*	0.27 (0.08, 0.46)^*	0.23 (0.05, 0.41)^*
Sedentary time	−0.07 (−0.55, 0.41)	0.07 (−0.34, 0.47)	−0.07 (−0.38, 0.25)
	Fatigue
	p25 β (95% CI)	p50 β (95% CI)	p75 β (95% CI)
MVPA	4.44 (3.04, 5.84)^**	3.08 (2.19, 3.98)^**	1.51 (0.97, 2.05)^**
MVPA 10-min bouts	7.31 (4.69, 9.92)^**	4.93 (3.22, 6.65)^**	2.52 (1.41, 3.63)^**
Light-intensity physical activity	1.75 (1.20, 2.31)^**	1.14 (0.55, 1.74)^**	0.59 (0.29, 0.90)^**
Steps	0.93 (0.68, 1.19)^**	0.79 (0.60, 0.98)^**	0.44 (0.31, 0.57)^**
Sedentary time	−0.58 (−1.16, 0.01)^*	−0.39 (−0.79, 0.02)	−0.24 (−0.45, −0.04)^*

Note. Physical composite model adjusted for age, education, comorbidity, location, smoking, cancer stage, surgery, total percent body fat, and total caloric intake. Mental composite model adjusted for age, location, smoking, comorbidity, number of 1^st degree relative breast cancer history, cancer stage, and waist/hip ratio.

Fatigue model adjusted for age, location, smoking, comorbidity, cancer stage, waist/hip ratio.

^†

Steps per day were analysed in 1,000 steps/day units to provide more meaningful (and interpretable) beta weights.

p ≤ 0.05;

^**

p ≤ 0.01

B, unstandardized regression coefficient, CI, confidence interval.

Activity models (N=1,409); Sedentary time models (N=1,396).