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Table 1 Main characteristics of the included studies in this meta-analysis

From: Bone mineral density is negatively correlated with ulcerative colitis: a systematic review and meta-analysis

AuthorCountryYearSex M/FAge mean age ± SD (range age) yearsDisease duration mean duration ± SDBMD measurementUlcerative colitis diagnosisDetection siteOutcomeCasesControlsTotalQuality scores
KrelaPoland201849/5639.6 ± 15.07.48 ± 7.0 yearsDXAEndoscopic, histopathologic and radiologic criteriaLumber spine, femoral neckBMD (g/cm2), T score, Z score, number of low bone density105411467
LimaBrazil201726/4238.2 ± 9.0NoneDXAClinical, endoscopic, histopathologic and radiologic dataLumber spine and femoral neckNumber of low bone density68671357
BastosBrazil2012None41.7 ± 14.3NoneDXANoneLumber spine, hipBMD (g/cm2), number of low bone density1440544
ZanettiBrazil2011None(20–50)NoneDXANoneLumbar spine, proximal femoral neck and total hipNumber of low bone density2044644
KayaTurkey201127/1341.53 ± 11.9338.6 ± 36.1 monthsDXAClinical, endoscopic and histopathological dataLumber spine, femoral neckNumber of low bone density4029696
PluskiewiczPoland200920/2747.64 ± 14.838.6 ± 7.2 yearsDXANoneLumber spineBMD (g/cm2), T score, Z score4747947
LiuChina2009NoneNone50 ± 44 monthsNoneNoneNoneT score4337803
SakellariouGreece2006Male25.8 ± 4.6NoneUltrasoundHistological findingRight calcaneousT score1428426
LambUK200215/845< 3 monthsDXANoneLumber spine, femoral neckBMD (g/cm2), T score, Z score2318419
UlivieriItaly200121/22Male: 36.5 ± 8.4, Female: 35.3 ± 6.28 yearsDXARadiologic, endoscopic and histopathological dataLumber spineBMD (g/cm2)431111547
SchoonThe Netherlands200024/2038.4 ± 14.43.4 ± 7.7 monthsDXARadiologic, endoscopic and histopathological dataLumber spine, femoral neckBMD (g/cm2)4444889
DincaItaly199933/16388 ± 1 yearsDXARadiologic, endoscopic and histopathological dataLumber spineBMD (g/cm2), T score4918678
JahnsenNorway199924/36387 yearsDXARadiologic, endoscopic and histopathological dataLumber spine, femoral neckBMD (g/cm2)60601208
  1. BMD bone mineral density, DXA dual energy X-ray absorptiometry