Table 1

 Summary of reports

ReportNo. patientsMean age (range), yearsOccurrence of urinary findings after HSPRenal involvement at presentationMean follow up (range), yearsNo. (%) with long term renal impairment
Koskimies et al2141<16NANone 1027.2 (3.0–13.8)0 (0%)
Haematuria ± proteinuria 310 (0%)
Nephritis 10 (0%)
Nephrotic 60 (0%)
Nephrotic ± nephritis 11 (100%)
Total 39 (28%)Total 1 (2.5%)
Garcia-Porrua et al28736.1 (1–13)NANone 327.7 (1–20)0 (0%)
Haematuria ± proteinuria 330 (0%)
Nephrotic ± nephritis 80 (0%)
Total 410 (0%)
Saulsbury et al301005.9 (1–15)30 (75%) within 4 weeksNone 60(0.1–5)0 (0%)
10 (25%) after 4 weeksHaematuria ± proteinuria 340 (0%)
None after 9 weeksNephritis 61 (16.6)
Total 40 (40%)Total 1 (2.5%)
Kumar et al32457.6 (2.5–12)All within 2 monthsNone 31(1–32)0 (0%)
Haematuria ± proteinuria 50 (0%)
Nephritis 60 (0%)
Nephrotic 30 (0%)
Total 14Total 0 (0%)
Stewart et al6270<16NANone 2158.30 (0%)
Haematuria ± proteinuria 370 (0%)
Nephrotic ± nephritis 181 death renal 5.5%)
Total 55Total 1 (1.8%)
Ronkainen et al847<16Within a month: 36NA 524.1 (16.4–36.5)NA
After 2 months: 1None 90 (0%)
After 6 months: 1Haematuria ± proteinuria 182 (1%)
Nephrotic ± nephritis 207 (35%) (risk 2.5 times higher in females)
Total 9 (23.6%)
Total 38
Lin et al29846.6 (1.2–11.9)NANone 64>10 (0%)
Haematuria ± proteinuria 200 (0%)
Nephrotic ± nephritis 50 (0%)
Total 25Total 0 (0%)
Chen et al10101(3–17)1 day: 5None 662 (0.3–8)0 (0%)
1–7 days: 8Haematuria ± proteinuria 292 (6.9%)
1–2 weeks: 6Nephrotic 32 (66.6%)
2–4 weeks: 10Nephritis 33 (100%)
4–6 weeks: 3Total 35Total 7 (20%)
>6 weeks 3
Pabunruang et al1847(3–5)<2 months: 16None 252.6 (1–5)0 (0%)
<6 months 6Haematuria ± proteinuria 220 (0%)
Total 220 (0%)
Calviño et al9785.5<3 months: 100%None 3770 (0%)
Nephrotic 11 (100%)
Haematuria ± proteinuria 400 (0%)
Total 411 (2.4%)
Mintzer et al31107NANANone 76(4–24)0 (0%)
Haematuria ± proteinuria 300 (0%)
Nephrotic 10 (0%)
Total 310 (0%)
Dawod et al33406 (2.2–13)NANone 330.6 (0.1–5)0 (0%)
Haematuria ± proteinuria 7Hypertension 1 (14%)