Table 2. Patient characteristics in each age category.

	20≤Age<40			p value	40≤Age<65			p value	65≤Age			p value
	(N=2,437)				(N=3,181)				(N=378)
	Lean	Normal	Obese		Lean	Normal	Obese		Lean	Normal	Obese
	N=315	N=1,860	N=262		N=292	N=2,401	N=488		N=38	N=297	N=43
Age (years)	30.8 (5.5)	31.3 (5.5)	32.0 (5.1)	0.047	49 (6)	49 (7)	49 (6)	>0.9	75.1 (9.7)	72.5 (6.4)	71.3 (6.1)	0.073
Sex (female), n (%)	249 (79.0%)	1,175 (63.2%)	107 (40.8%)	<0.001	253 (86.6%)	1,534 (63.9%)	221 (45.3%)	<0.001	30 (78.9%)	172 (57.9%)	20 (46.5%)	0.01
Body Mass Index (kg/m2)	17.5 (0.8)	21.3 (1.7)	27.9 (2.8)	<0.001	17.5 (0.9)	21.6 (1.8)	27.7 (2.7)	<0.001	17.0 (1.3)	21.8 (1.7)	27.1 (2.4)	<0.001
Shannon-index	6.18 (0.60)	6.23 (0.58)	6.09 (0.63)	0.005	6.30 (0.61)	6.29 (0.60)	6.14 (0.61)	<0.001	6.20 (0.62)	6.44 (0.57)	6.33 (0.59)	0.082
Alcohol, n (%)
Never	215 (68.2%)	1,077 (57.9%)	130 (49.6%)	<0.001	173 (59.2%)	1,201 (50.0%)	241 (49.4%)	0.026	27 (71.1%)	164 (55.2%)	28 (65.1%)	0.3
Current	88 (27.9%)	723 (38.9%)	118 (45.0%)		104 (35.6%)	1,097 (45.7%)	223 (45.7%)		9(23.7%)	108 (36.4%)	11 (25.6%)
Past	12 (3.8%)	56 (3.0%)	14 (5.4%)		14(4.8%)	101 (4.2%)	23(4.7%)		2 (5.3%)	22 (7.4%)	4 (9.3%)
Unknown	0 (0.0%)	4 (0.2%)	0 (0.0%)		1 (0.3%)	2 (0.1%)	1 (0.2%)		0 (0.0%)	3 (1.0%)	0 (0.0%)
Smoking, n (%)
Never	255 (81.0%)	1,477 (79.4%)	170 (64.9%)	<0.001	225 (77.1%)	1,536 (64.0%)	268 (54.9%)	<0.001	29 (76.3%)	190 (64.0%)	23 (53.5%)	0.1
Current	25(7.9%)	136 (7.3%)	40 (15.3%)		15(5.1%)	201 (8.4%)	72 (14.8%)		2 (5.3%)	15 (5.1%)	4 (9.3%)
Past	35 (11.1%)	243 (13.1%)	52 (19.8%)		52 (17.8%)	658 (27.4%)	147 (30.1%)		5(13.1%)	88 (29.6%)	15 (34.9%)
Unknown	0 (0.0%)	4 (0.2)	0 (0.0%)		0 (0.0%)	6 (0.2%)	1 (0.2%)		2 (5.3%)	4 (1.3%)	1 (2.3%)

( )=standard deviation: S.D.