Skip to main content

Table 3 Multivariate analysis of local factors affecting travel speed by foot in Ifanadiana, (linear additive model, with individual track as random intercept)

From: Improving geographical accessibility modeling for operational use by local health actors

  Coeff Std. Error p
Intercept (km/h) 3.27 0.10 < 0.001
Slope (%) Non-lineara -a < 0.001
Rainfall (every 10 mm) − 0.06 0.01 <0.001
Travel distance (km)
[0, 13] (Ref)   
(13, 22.9] − 0.38 0.02 <  0.001
Land cover
Mixed (Ref)   
Water bodies − 1.32 0.18 < 0.001
Forest 0.01 0.16 0.93
Rice field − 0.46 0.16 < 0.01
Savanna − 0.05 0.16 0.75
Residential area − 0.52 0.16 < 0.01
Individual
Community team staff (Ref)   
PIVOT research team 1.20 0.03 < 0.001
Local population 1.29 0.03 < 0.001
  1. aThere was an exponential decrease of speed at higher absolute values of slope (in percent). Non-linear smooth and confidence intervals are shown in Additional file 6