Average Daily Allocation of Time among Different Activity Intensity Levels for Walkers – Seemingly Unrelated Regression with Robust Standard Errors.

Notes: (1) Estimations include a time trend and its square. (2) Standard errors are robust. (3) *, ** and *** indicate statistical significance at the 0.1, 0.05 and 0.01 levels, respectively. (4) “Had treadmill during the current week” is an indicator variable talking on the value of 1 when the walker had a treadmill in his or her office, and 0 when he or she did not have a treadmill in his or her office.