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        Familial aggregation of inflammatory bowel disease in India: prevalence, risks and impact on disease behavior

        Rupa Banerjee,Partha Pal,Susan Hutfless,B Girish Ganesh,D Nageshwar Reddy 대한장연구학회 2019 Intestinal Research Vol.17 No.4

        Background/Aims: Information about familial aggregation of inflammatory bowel disease (IBD) in Asia is limited. We aimed to analyze the prevalence and risk of familial IBD in an Indian cohort and compare familial and sporadic cases. Methods: Familial IBD cases were identified from a large prospectively maintained IBD registry. The prevalence of IBD in first- and seconddegree relatives of index cases was evaluated. The disease behavior was compared to that of sporadic cases. Results: Total 3,553 patients (ulcerative colitis [UC], 2,053; Crohn’s disease [CD], 1,500) were included. Familial IBD was noted in 4.13% of CD and 4.34% of UC patients. Family history was commoner in pediatric group (<18 years) (P=0.0002; odds ratio [OR], 2.8; 95% confidence interval [CI], 1.6–4.8). Majority had paternal transmission (UC, 67.42%; CD, 70.97%). Concordance of disease type was higher in UC (79.7%) compared to CD (37.1%). Familial IBD was associated with higher cumulative relapse rate (CD, P<0.001; UC, P<0.001), higher cumulative rate of surgery (CD, P<0.001; UC, P<0.001) and higher rate of biologic use (CD, P=0.010; UC, P=0.015). Pan-colitis was higher in familial UC (P=0.003; OR, 1.935; 95% CI, 1.248–3.000). Fistulizing disease was commoner in familial CD (P=0.041; OR, 2.044; 95% CI, 1.030–4.056). Conclusions: The prevalence of familial IBD in India appears comparable to rest of Asia but lower than the West. It is associated with a younger age of onset, higher incidence of pan-colitis in UC and fistulizing complications in CD. Familial IBD has higher cumulative relapse, surgery and biologic use rates. Hence, family history of IBD could have important prognostic implications.

      • SCOPUSKCI등재

        Very early onset inflammatory bowel disease in a South Asian country where inflammatory bowel disease is emerging: a distinct clinical phenotype from later onset disease

        ( Rupa Banerjee ),( Partha Pal ),( Zaheer Nabi ),( Upender Shava ),( Girish Ganesh ),( D. Nageshwar Reddy ) 대한장연구학회 2021 Intestinal Research Vol.19 No.4

        Background/Aims: Information on pediatric inflammatory bowel disease (PIBD) and very early onset IBD (VEOIBD) are sparse in India, where IBD is emerging. We aimed to evaluate characteristics of VEOIBD and later onset PIBD (LO-PIBD) in India. Methods: We performed retrospective analysis of a large, prospectively maintained IBD registry. PIBD was divided in to VEOIBD (<6 years) and LO-PIBD (6-17 years). Demographic data, disease characteristics and treatment were compared between the PIBD groups and with other Asian/Western studies as well as the adult patients of the registry. Results: Of 3,752 IBD patients, 292 (7.8%) had PIBD (0-17 years) (175 Crohn’s disease [CD], 113 ulcerative colitis [UC], 4 IBD-undifferentiated; 22 VEOIBD [7.5%], and 270 LO-PIBD [92.5%]). VEOIBD patients had more severe disease compared to LO-PIBD in both UC (P= 0.003) and CD (P< 0.001). Familial IBD was more common in VEOIBD (13.6%) compared to LO-PIBD (9.2%). Ileal disease (L1) was an independent risk factor for diagnostic delay in pediatric CD. Diagnostic delay ( >6 months) was significantly lower in VEOIBD (40.9%) than in LO-PIBD (78.8%) (P< 0.001). Compared to other Asian and Western studies, extensive UC (72.5%) and complicated CD (stricturing/penetrating: 42.7%) were relatively more common. Perianal CD was relatively less frequent (7.4%). PIBD had a significantly higher number of complicated and ileal CD and extensive UC comparison to adult cohort of the registry. Conclusions: VEOIBD has more aggressive phenotype than LO-PIBD. Disease appears distinct from other Asian and Western studies and adult onset disease, with more complicated CD and extensive UC. (Intest Res 2021;19:398-407)

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