TY - JOUR
T1 - Impact of Vitamin D on the hospitalization rate of Crohn's disease patients seen at a tertiary care center
AU - Venkata, Krishna V.R.
AU - Arora, Sumant S.
AU - Xie, Feng Long
AU - Malik, Talha A.
N1 - Publisher Copyright:
© The Author(s) 2017.
PY - 2017/4/14
Y1 - 2017/4/14
N2 - AIM To study the association between vitamin D level and hospitalization rate in Crohn's disease (CD) patients. METHODS We designed a retrospective cohort study using adult patients (> 19 years) with CD followed for at least one year at our inflammatory bowel disease center. Vitamin D levels were divided into: low mean vitamin D level (< 30 ng/mL) vs appropriate mean vitamin D level (30-100 ng/mL). Generalized Poisson Regression Models (GPR) for Rate Data were used to estimate partially adjusted and fully adjusted incidence rate ratios (IRR) of hospitalization among CD patients. We also examined IRRs for vitamin D level as a continuous variable. RESULTS Of the 880 CD patients, 196 patients with vitamin D level during the observation period were included. Partially adjusted model demonstrated that CD patients with a low mean vitamin D level were almost twice more likely to be admitted (IRR = 1.76, 95%CI: 1.38-2.24) compared to those with an appropriate vitamin D level. The fully adjusted model confirmed this association (IRR = 1.44, 95%CI: 1.11-1.87). Partially adjusted model with vitamin D level as a continuous variable demonstrated, higher mean vitamin D level was associated with a 3% lower likelihood of admission with every unit (ng/mL) rise in mean vitamin D level (IRR = 0.97, 95%CI: 0.96-0.98). The fully adjusted model confirmed this association (IRR = 0.98, 95%CI: 0.97-0.99). CONCLUSION Normal or adequate vitamin D stores may be protective in the clinical course of CD. However, this role needs to be further characterized and understood.
AB - AIM To study the association between vitamin D level and hospitalization rate in Crohn's disease (CD) patients. METHODS We designed a retrospective cohort study using adult patients (> 19 years) with CD followed for at least one year at our inflammatory bowel disease center. Vitamin D levels were divided into: low mean vitamin D level (< 30 ng/mL) vs appropriate mean vitamin D level (30-100 ng/mL). Generalized Poisson Regression Models (GPR) for Rate Data were used to estimate partially adjusted and fully adjusted incidence rate ratios (IRR) of hospitalization among CD patients. We also examined IRRs for vitamin D level as a continuous variable. RESULTS Of the 880 CD patients, 196 patients with vitamin D level during the observation period were included. Partially adjusted model demonstrated that CD patients with a low mean vitamin D level were almost twice more likely to be admitted (IRR = 1.76, 95%CI: 1.38-2.24) compared to those with an appropriate vitamin D level. The fully adjusted model confirmed this association (IRR = 1.44, 95%CI: 1.11-1.87). Partially adjusted model with vitamin D level as a continuous variable demonstrated, higher mean vitamin D level was associated with a 3% lower likelihood of admission with every unit (ng/mL) rise in mean vitamin D level (IRR = 0.97, 95%CI: 0.96-0.98). The fully adjusted model confirmed this association (IRR = 0.98, 95%CI: 0.97-0.99). CONCLUSION Normal or adequate vitamin D stores may be protective in the clinical course of CD. However, this role needs to be further characterized and understood.
KW - Crohn's disease
KW - Hospitalization rate
KW - Inflammatory bowel disease
KW - Vitamin D
KW - Vitamin D deficiency
UR - http://www.scopus.com/inward/record.url?scp=85017514471&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85017514471&partnerID=8YFLogxK
U2 - 10.3748/wjg.v23.i14.2539
DO - 10.3748/wjg.v23.i14.2539
M3 - Article
C2 - 28465638
AN - SCOPUS:85017514471
SN - 1007-9327
VL - 23
SP - 2539
EP - 2544
JO - World journal of gastroenterology
JF - World journal of gastroenterology
IS - 14
ER -