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Table 6 Descriptive statistics of explanatory variables

From: The impact of health insurance programs for children: evidence from Vietnam

Variables Type VHLSS 2006 VHLSS 2008 VHLSS 2010 VHLSS 2012
Age of child Discrete 9.975 11.945 9.576 11.411
   (0.045) (0.046) (0.052) (0.053)
Sex (male = 1, female = 0) Binary 0.502 0.502 0.524 0.524
   (0.010) (0.010) (0.011) (0.011)
Ethnic minorities (ethnic minorities = 1, Kinh/Hoa = 0) Binary 0.154 0.154 0.204 0.207
   (0.007) (0.007) (0.009) (0.009)
Attending school (yes = 1, no = 0) Binary 0.953 0.907 0.957 0.929
   (0.004) (0.006) (0.004) (0.006)
Log of per capita income Continuous 8.570 8.868 9.266 9.675
   (0.013) (0.014) (0.017) (0.016)
Household size Discrete 5.112 5.019 4.860 4.806
   (0.032) (0.032) (0.033) (0.030)
Proportion of children in households Continuous 0.424 0.364 0.430 0.390
   (0.003) (0.003) (0.003) (0.004)
Proportion of elderly in households Continuous 0.047 0.048 0.045 0.047
   (0.002) (0.002) (0.002) (0.002)
Age of household head Discrete 43.713 45.020 42.537 43.989
   (0.238) (0.224) (0.252) (0.244)
Sex of head (male = 1, female = 0) Binary 0.805 0.803 0.822 0.817
   (0.008) (0.008) (0.008) (0.009)
Household head without education degree Binary 0.259 0.238 0.272 0.254
   (0.009) (0.009) (0.010) (0.010)
Household head with primary education Binary 0.280 0.292 0.293 0.272
   (0.009) (0.009) (0.010) (0.010)
Household head with lower-secondary Binary 0.269 0.274 0.220 0.254
   (0.009) (0.009) (0.009) (0.010)
Household head with upper-secondary Binary 0.164 0.166 0.159 0.160
   (0.007) (0.007) (0.008) (0.008)
Household head with post-secondary Binary 0.027 0.030 0.058 0.059
   (0.003) (0.003) (0.005) (0.005)
Household head without spouse Binary 0.136 0.141 0.120 0.122
   (0.007) (0.007) (0.007) (0.007)
Household head’s spouse without education degree Binary 0.225 0.213 0.261 0.253
   (0.008) (0.008) (0.010) (0.010)
Household head’s spouse with primary education Binary 0.270 0.281 0.275 0.263
   (0.009) (0.009) (0.010) (0.010)
Household head’s spouse with lower-secondary Binary 0.222 0.226 0.198 0.219
   (0.008) (0.008) (0.009) (0.009)
Household head’s spouse with upper-secondary Binary 0.123 0.112 0.101 0.098
   (0.007) (0.006) (0.007) (0.007)
Household head’s spouse with post-secondary Binary 0.024 0.028 0.046 0.045
   (0.003) (0.003) (0.005) (0.005)
Urban (urban = 1; rural = 0) Binary 1.788 1.788 0.223 0.225
   (0.008) (0.008) (0.009) (0.009)
Number of doctors per 1000 people Continuous 0.499 0.424 0.555 0.565
   (0.003) (0.002) (0.004) (0.004)
Number of hospital per 1000 people Continuous 0.010 0.009 0.016 0.019
   (0.000) (0.000) (0.000) (0.000)
Number of observations   2507 2507 2055 2055
  1. Standard errors in parentheses. Source: Estimates from VHLSSs 2006, 2008, 2010 and 2012