Fig. 1

Changes in pre- and post-diagnostic physical activity (PA) levels of 1,327 women diagnosed with breast cancer in the Norwegian Women and Cancer study. Inactive = PA level 1–4, Active = PA level 5–10. Reduced PA level = pre-diagnostic PA level ≥5 and post-diagnostic PA level <5, Maintained inactive = pre- and post-diagnostic PA levels <5, Increased PA level = pre-diagnostic PA level <5 and a post-diagnostic PA level ≥5, Maintained active = pre- and post-diagnostic PA level ≥5