| n | % | OR | 95%CI | p-value |
Female sex Low-income Troubled schooling Previous hospitalization Previous ARF Migratory polyarthritis Prolonged hospitalization | 8 11 2 7 7 6 9 | 53.3 73.3 13.3 46 46 40 60 | 1.52 1.33 0.66 2.7 2 1.12 2.7 | 0.35 - 6.6 0.24 - 7.4 0.1 - 4.7 0.58 - 13 0.44 - 8.96 0.25 - 4.9 0.6 - 12 | 0.57 0.74 0.68 0.201 0.35 0.87 0.19 |