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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
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International Journal of Health Geographics

ISSN: 1476-072X