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Table 2 Prior reports of IMN in pediatric patients: a comparative review

From: Idiopathic membranous nephropathy in pediatric patients: presentation, response to therapy, and long-term outcome

Author, Year N Follow-up Period (yr) Mean Age at Presentation (yr) Age Range M:F Nephrotic at Presentation (%) ↓ GFR at last F/U (%) HTN at last F/U (%) Estimated Occurrence Rate (%)
Habib et al., 1973 50 1–10 NA 8 mo-14 yr 38:12 62 10 NA 3.7
Trainin et al., 1976 14 5.5 9 2–15 yr 6:8 79 29 NA 6.7
Ramirez et al., 1982 22 4.7 12 11 mo-19.9 yr 11:11 77 37 NA 5.7
Latham et al., 1982 14 6.4 10.5 3.5–14 9:5 79 21 NA 1.3
Tsukahara et al., 1993 12 5.9 7.7 2.9–15.8 yr 8:4 25 0 0 3
Obana et al., 2006 38 7.5 (SMGN); 12.4 (GMGN) 7.6 1.5–16 yr 25:13 24 0 5% 2.4
Lee et al., 2006 19 28.5 9.5 1.7–14.9 9:10 89.5 15 NA 1
Current study 13 3.5 9.6 4–17 yr 6:7 38 23 54% 2.8
  1. Abbreviations: GMGN, global membranous glomerulonephritis; HTN, hypertension; NA, not available; SMGN, segmental membranous glomerulonephritis