Table 6.

Bivariate and multivariate logistic regression showing predictors for LOS in patients with IBD hospitalized with COVID-19 infection.

Bivariate logistic regressionMultivariate logistic regression
Coefficient95% Confidence IntervalPCoefficient95% Confidence IntervalP
COVID-19 Infection2.66(2.27-3.04)< .011.13(0.76-1.5)< .01
Female−0.19(−0.31 to −0.07)< .01−0.14(−0.26 to −0.03).02
Race
 WhiteReferenceReference
 Black0.31(0.09-0.52).010.17(−0.05-0.39).14
 Hispanic0.06(−0.25-0.37).70.08(−0.23-0.39).6
 Other0.57(0.18-0.96)< .010.39(0.04-0.73).03
Age (mean)0.03(0.02-0.03)< .01−0.01(−0.02-0)< .01
 18-34ReferenceReference
 35-440.16(−0.06-0.37).160.07(−0.18-0.32).6
 45-640.97(0.79-1.14)< .010.57(0.24-0.89)< .01
 ≥651.32(1.15-1.49)< .010.76(0.24-1.29).01
Charlson comorbidity index
 1ReferenceReference
 21.19(0.99-1.38)< .010.6(0.37-0.82)< .01
 3 or more2.04(1.88-2.19)< .011.1(0.87-1.34)< .01
Median income based on the zip code
 $1-$38 999ReferenceReference
 $39 000-$47 999−0.14(−0.3-0.02).09−0.02(−0.18-0.13).77
 $48 000-$62 999−0.16(−0.33-0).05−0.09(−0.26-0.07).26
 >$63 000−0.03(−0.23-0.17).80.02(−0.18-0.22).87
Insurance provider
 MedicareReferenceReference
 Medicaid−0.48(−0.68 to −0.28)< .010.17(−0.07-0.41).17
 Private−0.93(−1.06 to −0.8)< .01−0.18(−0.37-0.01).07
 Uninsured−1.14(−1.44 to −0.85)< .01−0.23(−0.55-0.1).17
Comorbidities
Diabetes mellitus1(0.09-1.91).03−0.16(−1.06-0.73).72
Hypertension1.38(−0.1-2.87).070.49(−0.94-1.93).5
Smoking Status−0.57(−0.7 to −0.44)< .01−0.51(−0.64 to −0.38)< .01
Alcohol Disorder0.36(−0.17-0.89).190.14(−0.41-0.69).62
ESRD2.87(2.27-3.46)< .010.72(0.16-1.27).01
Congestive Heart Failure1.87(1.66-2.08)< .010.51(0.27-0.75)< .01
COPD0.23(0.09-0.37)< .01−0.55(−0.71 to −0.39)< .01
Hospital teaching status
 Non-teachingReferenceReference
 Teaching1.06(0.92-1.2)< .011.07(0.94-1.21)< .01
Hospital size
 SmallReferenceReference
 Medium0.55(0.39-0.71)< .011.13(0.96-1.29)< .01
 Large1.09(0.93-1.26)< .011.13(0.96-1.29)< .01
Hospital region
 NortheastReferenceReference
 Midwest−0.62(−0.86 to −0.38)< .01−0.7(−0.92 to −0.48)< .01
 South−0.45(−0.66 to −0.25)< .01−0.42(−0.61 to −0.23)< .01
 West−0.49(−0.75 to −0.23)< .01−0.59(−0.85 to −0.34)< .01
Complications
 Intensive Care Unit8.42(7.73-9.1)< .012.25(1.04-3.47)< .01
 Mechanical ventilation9.03(8.26-9.81)< .012.51(1.08-3.95)< .01
 Septic Shock7.64(6.93-8.34)< .013.57(2.83-4.31)< .01
Bivariate logistic regressionMultivariate logistic regression
Coefficient95% Confidence IntervalPCoefficient95% Confidence IntervalP
COVID-19 Infection2.66(2.27-3.04)< .011.13(0.76-1.5)< .01
Female−0.19(−0.31 to −0.07)< .01−0.14(−0.26 to −0.03).02
Race
 WhiteReferenceReference
 Black0.31(0.09-0.52).010.17(−0.05-0.39).14
 Hispanic0.06(−0.25-0.37).70.08(−0.23-0.39).6
 Other0.57(0.18-0.96)< .010.39(0.04-0.73).03
Age (mean)0.03(0.02-0.03)< .01−0.01(−0.02-0)< .01
 18-34ReferenceReference
 35-440.16(−0.06-0.37).160.07(−0.18-0.32).6
 45-640.97(0.79-1.14)< .010.57(0.24-0.89)< .01
 ≥651.32(1.15-1.49)< .010.76(0.24-1.29).01
Charlson comorbidity index
 1ReferenceReference
 21.19(0.99-1.38)< .010.6(0.37-0.82)< .01
 3 or more2.04(1.88-2.19)< .011.1(0.87-1.34)< .01
Median income based on the zip code
 $1-$38 999ReferenceReference
 $39 000-$47 999−0.14(−0.3-0.02).09−0.02(−0.18-0.13).77
 $48 000-$62 999−0.16(−0.33-0).05−0.09(−0.26-0.07).26
 >$63 000−0.03(−0.23-0.17).80.02(−0.18-0.22).87
Insurance provider
 MedicareReferenceReference
 Medicaid−0.48(−0.68 to −0.28)< .010.17(−0.07-0.41).17
 Private−0.93(−1.06 to −0.8)< .01−0.18(−0.37-0.01).07
 Uninsured−1.14(−1.44 to −0.85)< .01−0.23(−0.55-0.1).17
Comorbidities
Diabetes mellitus1(0.09-1.91).03−0.16(−1.06-0.73).72
Hypertension1.38(−0.1-2.87).070.49(−0.94-1.93).5
Smoking Status−0.57(−0.7 to −0.44)< .01−0.51(−0.64 to −0.38)< .01
Alcohol Disorder0.36(−0.17-0.89).190.14(−0.41-0.69).62
ESRD2.87(2.27-3.46)< .010.72(0.16-1.27).01
Congestive Heart Failure1.87(1.66-2.08)< .010.51(0.27-0.75)< .01
COPD0.23(0.09-0.37)< .01−0.55(−0.71 to −0.39)< .01
Hospital teaching status
 Non-teachingReferenceReference
 Teaching1.06(0.92-1.2)< .011.07(0.94-1.21)< .01
Hospital size
 SmallReferenceReference
 Medium0.55(0.39-0.71)< .011.13(0.96-1.29)< .01
 Large1.09(0.93-1.26)< .011.13(0.96-1.29)< .01
Hospital region
 NortheastReferenceReference
 Midwest−0.62(−0.86 to −0.38)< .01−0.7(−0.92 to −0.48)< .01
 South−0.45(−0.66 to −0.25)< .01−0.42(−0.61 to −0.23)< .01
 West−0.49(−0.75 to −0.23)< .01−0.59(−0.85 to −0.34)< .01
Complications
 Intensive Care Unit8.42(7.73-9.1)< .012.25(1.04-3.47)< .01
 Mechanical ventilation9.03(8.26-9.81)< .012.51(1.08-3.95)< .01
 Septic Shock7.64(6.93-8.34)< .013.57(2.83-4.31)< .01
Table 6.

Bivariate and multivariate logistic regression showing predictors for LOS in patients with IBD hospitalized with COVID-19 infection.

Bivariate logistic regressionMultivariate logistic regression
Coefficient95% Confidence IntervalPCoefficient95% Confidence IntervalP
COVID-19 Infection2.66(2.27-3.04)< .011.13(0.76-1.5)< .01
Female−0.19(−0.31 to −0.07)< .01−0.14(−0.26 to −0.03).02
Race
 WhiteReferenceReference
 Black0.31(0.09-0.52).010.17(−0.05-0.39).14
 Hispanic0.06(−0.25-0.37).70.08(−0.23-0.39).6
 Other0.57(0.18-0.96)< .010.39(0.04-0.73).03
Age (mean)0.03(0.02-0.03)< .01−0.01(−0.02-0)< .01
 18-34ReferenceReference
 35-440.16(−0.06-0.37).160.07(−0.18-0.32).6
 45-640.97(0.79-1.14)< .010.57(0.24-0.89)< .01
 ≥651.32(1.15-1.49)< .010.76(0.24-1.29).01
Charlson comorbidity index
 1ReferenceReference
 21.19(0.99-1.38)< .010.6(0.37-0.82)< .01
 3 or more2.04(1.88-2.19)< .011.1(0.87-1.34)< .01
Median income based on the zip code
 $1-$38 999ReferenceReference
 $39 000-$47 999−0.14(−0.3-0.02).09−0.02(−0.18-0.13).77
 $48 000-$62 999−0.16(−0.33-0).05−0.09(−0.26-0.07).26
 >$63 000−0.03(−0.23-0.17).80.02(−0.18-0.22).87
Insurance provider
 MedicareReferenceReference
 Medicaid−0.48(−0.68 to −0.28)< .010.17(−0.07-0.41).17
 Private−0.93(−1.06 to −0.8)< .01−0.18(−0.37-0.01).07
 Uninsured−1.14(−1.44 to −0.85)< .01−0.23(−0.55-0.1).17
Comorbidities
Diabetes mellitus1(0.09-1.91).03−0.16(−1.06-0.73).72
Hypertension1.38(−0.1-2.87).070.49(−0.94-1.93).5
Smoking Status−0.57(−0.7 to −0.44)< .01−0.51(−0.64 to −0.38)< .01
Alcohol Disorder0.36(−0.17-0.89).190.14(−0.41-0.69).62
ESRD2.87(2.27-3.46)< .010.72(0.16-1.27).01
Congestive Heart Failure1.87(1.66-2.08)< .010.51(0.27-0.75)< .01
COPD0.23(0.09-0.37)< .01−0.55(−0.71 to −0.39)< .01
Hospital teaching status
 Non-teachingReferenceReference
 Teaching1.06(0.92-1.2)< .011.07(0.94-1.21)< .01
Hospital size
 SmallReferenceReference
 Medium0.55(0.39-0.71)< .011.13(0.96-1.29)< .01
 Large1.09(0.93-1.26)< .011.13(0.96-1.29)< .01
Hospital region
 NortheastReferenceReference
 Midwest−0.62(−0.86 to −0.38)< .01−0.7(−0.92 to −0.48)< .01
 South−0.45(−0.66 to −0.25)< .01−0.42(−0.61 to −0.23)< .01
 West−0.49(−0.75 to −0.23)< .01−0.59(−0.85 to −0.34)< .01
Complications
 Intensive Care Unit8.42(7.73-9.1)< .012.25(1.04-3.47)< .01
 Mechanical ventilation9.03(8.26-9.81)< .012.51(1.08-3.95)< .01
 Septic Shock7.64(6.93-8.34)< .013.57(2.83-4.31)< .01
Bivariate logistic regressionMultivariate logistic regression
Coefficient95% Confidence IntervalPCoefficient95% Confidence IntervalP
COVID-19 Infection2.66(2.27-3.04)< .011.13(0.76-1.5)< .01
Female−0.19(−0.31 to −0.07)< .01−0.14(−0.26 to −0.03).02
Race
 WhiteReferenceReference
 Black0.31(0.09-0.52).010.17(−0.05-0.39).14
 Hispanic0.06(−0.25-0.37).70.08(−0.23-0.39).6
 Other0.57(0.18-0.96)< .010.39(0.04-0.73).03
Age (mean)0.03(0.02-0.03)< .01−0.01(−0.02-0)< .01
 18-34ReferenceReference
 35-440.16(−0.06-0.37).160.07(−0.18-0.32).6
 45-640.97(0.79-1.14)< .010.57(0.24-0.89)< .01
 ≥651.32(1.15-1.49)< .010.76(0.24-1.29).01
Charlson comorbidity index
 1ReferenceReference
 21.19(0.99-1.38)< .010.6(0.37-0.82)< .01
 3 or more2.04(1.88-2.19)< .011.1(0.87-1.34)< .01
Median income based on the zip code
 $1-$38 999ReferenceReference
 $39 000-$47 999−0.14(−0.3-0.02).09−0.02(−0.18-0.13).77
 $48 000-$62 999−0.16(−0.33-0).05−0.09(−0.26-0.07).26
 >$63 000−0.03(−0.23-0.17).80.02(−0.18-0.22).87
Insurance provider
 MedicareReferenceReference
 Medicaid−0.48(−0.68 to −0.28)< .010.17(−0.07-0.41).17
 Private−0.93(−1.06 to −0.8)< .01−0.18(−0.37-0.01).07
 Uninsured−1.14(−1.44 to −0.85)< .01−0.23(−0.55-0.1).17
Comorbidities
Diabetes mellitus1(0.09-1.91).03−0.16(−1.06-0.73).72
Hypertension1.38(−0.1-2.87).070.49(−0.94-1.93).5
Smoking Status−0.57(−0.7 to −0.44)< .01−0.51(−0.64 to −0.38)< .01
Alcohol Disorder0.36(−0.17-0.89).190.14(−0.41-0.69).62
ESRD2.87(2.27-3.46)< .010.72(0.16-1.27).01
Congestive Heart Failure1.87(1.66-2.08)< .010.51(0.27-0.75)< .01
COPD0.23(0.09-0.37)< .01−0.55(−0.71 to −0.39)< .01
Hospital teaching status
 Non-teachingReferenceReference
 Teaching1.06(0.92-1.2)< .011.07(0.94-1.21)< .01
Hospital size
 SmallReferenceReference
 Medium0.55(0.39-0.71)< .011.13(0.96-1.29)< .01
 Large1.09(0.93-1.26)< .011.13(0.96-1.29)< .01
Hospital region
 NortheastReferenceReference
 Midwest−0.62(−0.86 to −0.38)< .01−0.7(−0.92 to −0.48)< .01
 South−0.45(−0.66 to −0.25)< .01−0.42(−0.61 to −0.23)< .01
 West−0.49(−0.75 to −0.23)< .01−0.59(−0.85 to −0.34)< .01
Complications
 Intensive Care Unit8.42(7.73-9.1)< .012.25(1.04-3.47)< .01
 Mechanical ventilation9.03(8.26-9.81)< .012.51(1.08-3.95)< .01
 Septic Shock7.64(6.93-8.34)< .013.57(2.83-4.31)< .01
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