Table 1.
Main characteristics of LR and HR patients.
| LR Group | HR Group | Total | |
|---|---|---|---|
| Number of patients, n (%) | 96 (77) | 29 (23) | 125 (100) |
| Median age, years (IQR) | 9.36 (3.96) | 9.52 (3.89) | 9.41 (3.65) |
| Sex, n (%) | Male 56 (58) | Male 17 (59) | Male 73 (58) |
| Female 40 (42) | Female 12 (41) | Female 52 (42) | |
| Children aged <5 years, n (%) | 5 (5) | 1 (3) | 6 (5) |
| Children aged from 5 to 10 years, n (%) | 60 (63) | 17 (59) | 77 (62) |
| Children aged from 10 to 15 years, n (%) | 27 (28) | 10 (35) | 37 (29) |
| Children ≥ than 15 years, n (%) | 4 (4) | 1 (3) | 5 (4) |
| ASO titer, median (IQR) | 1,375 (1,045) | 1,270 (896) | 1,360 (981) |
| Anti-DNase B, median (IQR) | 926 (1,216) | 1,384 (1,468) | 1,109 (1,449) |
| Number of days between GAS infection and ARF onset, median (IQR) | 11 (17) | 13 (20) | 12 (17) |
IQR, interquartile range; ASO, anti-streptolysin antibody; Anti-DNase B, Anti-Deoxyribonuclease B; GAS, Group A Streptococcus; ARF, acute rheumatic fever.