Comparison of the median adjusted recurrence index, according to sex, origin and socio-economic level (SISBEN⩽3: annual income less than U$2000/year)3 in patients with activity at consultation (n: 25)
| Variables | Median adjusted index of recurrences | p Value* |
| Gender | ||
| Female (n: 16) | 1.3 | 0.93 |
| Male (n: 9) | 1.2 | |
| Congenital origin | ||
| Yes (n: 4) | 4.6 | 0.11 |
| No (n: 21) | 1.2 | |
| Socio-economic level (six patients without available data) | ||
| Low socio-economic level (SISBEN⩽3, n: 14) | 1.0 | 0.3 |
| High socio-economic level (SISBEN>3, n: 5) | 3.0 |
*Level of significance, statistically significant difference: p<0.05.