Skip to main content

Table 4 Multivariate adjusted * mean (95%CI) of percent (%) mammographic density by moderate + strenuous physical activity (mins/week) for all women combined and stratified by BMI

From: Physical activity and mammographic density in a cohort of postmenopausal Norwegian women; a cross-sectional study

VARIABLES ALL In strata of BMI
   < 25 ≥ 25-29 ≥ 30
  N = 2218 N = 1235 N = 732 N = 251
Moderate + strenuous activity (mins/week)         
No activity 566 16.9 (16.3- 17.5) 287 20.9 (20.2- 21.6) 200 14.8 (14.2- 15.5) 79 8.0 (7.5- 8.5)
≤ 30 193 17.2 (16.1- 18.2) 90 21.9 (20.8- 23.1) 73 14.9 (13.9- 16.0) 30 8.4 (7.6- 9.2)
31- 45 265 17.2 (16.2- 18.2) 139 22.9 (21.8- 24.0) 84 13.0 (12.0 - 14.1) 42 7.5 (6.7- 8.3)
46- 100 435 18.5 (17.8- 19.1) 238 23.2 (22.4- 23.9) 149 13.8 (13.1- 14.6) 48 7.3 (6.6- 8.0)
101-180 426 19.1 (18.4- 19.8) 254 24.0 (23.2- 24.8) 136 12.5 (11.7 -13.3) 36 7.7 (6.8- 8.7)
>180 333 20.6 (20.0- 21.3) 227 25.4 (24.6- 26.1) 90 12.1 ( 11.2- 13.0) 18 7.2 (5.8- 8.6)
p for trend   0.81   0.06   0.001   0.51
  1. * Least square means and p values for trend from linear regression. Adjusted for age at mammography (continuous), years of education (≤ 11, 12–14, 15+), number of pregnancies (nulliparous, 1,2,3,4, 5–10), age at first full-term pregnancy for parous women (<20, 20–24, 25–29, 30+), postmenopausal hormone therapy (never, past, current), body mass index (continuous), light physical activity.