Table 1 Clinical manifestations and possible triggers in HSP on admission
Number of cases (%) | |
|---|---|
Clinical manifestations | |
Purpura | 2074 (100.0%) |
Arthritis/arthralgia | 796 (38.4%) |
Abdominal pain | 729 (35.1%) |
Renal involvement | 621 (29.9%) |
Proteinuria | 161 (7.8%) |
Hematuria | 153 (7.4%) |
Hematuria plus proteinuria | 307 (14.8%) |
Possible triggers | |
Infection | 1030 (49.7%) |
Infectious sites | |
Respiratory tract infection | 926 (44.6%) |
Gastrointestinal infection | 103 (5.0%) |
Urinary tract infection | 20 (1.0%) |
Infectious agents | |
Streptococcal infection | 393 (18.9%) |
HP infection | 87 (4.2%) |
MP infection | 84 (4.1%) |
Parainfluenza infection | 10 (0.5%) |
TB infection | 4 (0.2%) |
RSV infection | 3 (0.1%) |
Toxoplasma gondii infection | 2 (0.1%) |
Allergy | 289 (13.9%) |
Food allergy | 247 (11.9%) |
Drug allergy | 23 (1.1%) |
House dust mite allergy | 14 (0.7%) |
Grass pollen allergy | 5 (0.2%) |
Injury | 20 (1.0%) |
Surgery | 14 (0.7%) |
Tick bite | 12 (0.6%) |
Vaccination | 8 (0.4%) |
Unknown | 886 (42.7%) |