of the three countries that have highest (and surprisingly parallel) slope: japan, south kore, mexico ... it suggests that #visit correlates with LE ... and health coverage is unimportant

but there are countries that have less #visit but more expensive (it suggests patients go to doctor not only for consultation) ... so #visit is an unreliable predictor so is cost

to me it seems the most predictive is location (yes, the country names are data points too) ... if i want to live long, i'll settle in japan and do what the average japanese for their healthy lifestyle