Estimates of each variable under selected model (model 6 in Table 2).

<p>The control variables were respectively the railway stations for locations, adults for age and women for gender.</p><p>Estimates of each variable under selected model (model 6 in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0130215#pone.0130215.t002" target="_blank">Table 2</a>).</p>