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Table 2 Prevalence of combined organ anomalies

From: Elevated risk of thrombophilia in agenesis of the vena cava as a factor for deep vein thrombosis

Organ or system anomalies Patients with AIVC in this paper (n = 41) Patients with AIVC in literature (n = 108/124; 16/124 NR ) Patients with NoAIVC (n = 168) P Value of AIVC in this paper and in literature (n = 149) vs. NoAIVC (n = 168)
Hypoplasia/aplasia of left kidney (%) 1/41 (2.4%) 3/108 (2.8%) 0/168 (0.0%) 0.042
Hypoplasia/aplasia of right kidney (%) 2/41 (4.9%) 7/108 (6.5%) 0/168 (0.0%) 0.002
Polysplenia (%) 1/41 (2.4%) 2/108 (1.9%) 0/168 (0.0%) 0.080
Preduodenal portal vein (%) 1/41 (2.4%) 1/108 (0.9%) 0/168 (0.0%) 0.176
May-Thurner syndrome (%) 0/41 (0.0%) 0/108 (0.0%) 5/168 (3.0%) 0.026
  1. AIVC inferior vena cava agenesia. NoAIVC iliofemoral DVT with involvement of inferior vena cava without AIVC. NR not reported.
  2. In 16 of 124 reported cases in literature organ anomalies were not reported (NR); comparisons were calculated with 108 patients.
  3. Absence of portal vein.