Body Composition in Crohn’s Disease and Ulcerative Colitis: Correlation with Disease Severity and Duration

Table 6

Effect of disease duration on body composition in patients of ulcerative colitis (UC) and Crohn’s disease (CD) with active disease (excluding patients in remission).

Disease duration (years)	BMI	Fat percentage	Fat mass in kg	Lean mass in kg	FFMI
Ulcerative colitis
<1 year	20.9 ± 2.8	13.9 ± 6.7	7.6 ± 4.3	45.0 ± 6.5	17.4 ± 1.1
1–5 years	20.3 ± 3.2	12.8 ± 8.1	7.7 ± 5.7	47.6 ± 8.1	16.9 ± 1.8
>5 years	17.1 ± 2.2	6.1 ± 3.9	3.4 ± 2.7	49.5 ± 5.2	15.5 ± 1.3
value	0.19	0.31	0.43	0.67	0.28
Crohn’s disease
<1 year	20.8 ± 5.6	11.4 ± 8.6	7.7 ± 7.6	50.7 ± 8.4	17.6 ± 2.7
1–5 years	19.4 ± 2.8	15.6 ± 9.2	7.8 ± 4.9	40.5 ± 7.0	15.7 ± 1.4
>5 years	20.2 ± 2.5	13.5 ± 8.9	7.0 ± 4.6	44.0 ± 5.6	16.8 ± 1.0
value	0.65	0.62	0.95	0.03	0.05