Table 6: Posterior mean, standard deviation and 95% credible intervals of parameters from BOP for smoking and chewing tobacco.

VariableMeanSt. Dev.2.50%Median97.50%

Smoking ( 𝑦 1 ) equation, (β 1,α 1)
Age/10 1.029 0.095 0.828 1.030
Age square/100 −0.104 0.010 −0.123 −0.105
Education −0.078 0.014 −0.105 −0.078
Education square 0.002 0.001 0.000 0.002
Income 0.000 0.002 −0.004 0.000
Male 2.066 0.091 1.888 2.067
Married 0.221 0.064 0.093 0.220
Muslim −0.083 0.049 −0.177 −0.083
Region 0.041 0.043 −0.044 0.041
Urban −0.091 0.048 −0.186 −0.091
Agriservice −0.121 0.050 −0.219 −0.122
Self-employed −0.149 0.087 −0.318 −0.150
Sstudent −0.720 0.093 −0.905 −0.719
α 12 0.270 0.015 0.241 0.270
α 13 0.956 0.028 0.901 0.956

Chewing ( 𝑦 2 ) equation, (β 2,α 2)
Age/10 0.797 0.091 0.609 0.801
Age square/100 −0.059 0.010 −0.079 −0.059
Education −0.023 0.016 −0.055 −0.023
Education square −0.002 0.001 −0.005 −0.002
Income 0.002 0.003 −0.004 0.002
Male −0.441 0.074 −0.586 −0.441
Married −0.010 0.073 −0.153 −0.011
Muslim −0.077 0.056 −0.187 −0.077
Region 0.430 0.049 0.334 0.430
Urban −0.082 0.056 −0.193 −0.081
Agriservice 0.078 0.073 −0.067 0.078
Self employed 0.177 0.087 0.010 0.176
Student −0.715 0.177 −1.070 −0.710
α 22 0.480 0.023 0.436 0.480
ρ 12 −0.178 0.034 −0.244 −0.179

Each equation includes father use and mother use variables as well as a constant term.