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Table 8 Generalized linear Model (GLM) showing the effect of selected independent variables on the number of medicinal plants used and the collection frequency of wild yam (n = 250) in rural villages of the Mahafaly region in SW-Madagascar

From: Effects of socio-economic household characteristics on traditional knowledge and usage of wild yams and medicinal plants in the Mahafaly region of south-western Madagascar

Independent variable Number of medicinal plants used Frequency of yam collection (Frequency month-1)
  B* P r B P R
Education level −0.087 .029 −0.083 −0.249 0.008 −0.118
Tropical livestock unit −0.007 .038 −0.192 −0.460 0.000 −0.263
Agricultural harvest −0.127 .002 −0.270 −0.251 0.012 −0.229
Age 0.002 .217 0.119 −0.014 0.000 −0.209
Family size 0.027 .001 0.119 0.056 0.003 0.092
Gender 0.125 .029 0.128 0.153 0.232 0.124
Healer consultancy −0.472 .000 −0.380 - - -
Households activities - - - 0.053 0.550 0.038
  1. (*) Beta coefficient; (r) regression coefficient, (−) the variable was not included in the model.