Prevalence of nonalcoholic fatty liver among administrative officers in Shanghai: an epidemiological survey

Table 1 Obesity indices and lipid parameters in males and females

Parameters	Male	Female	P value
BMI	23.5 ± 2.7	21.5 ± 2.6	< 0.001
WHR	0.86 ± 0.05	0.79 ± 0.06	< 0.001
TG (mg/dl)	126.3 ± 87.7	97.2 ± 75.2	< 0.001
TCh (mg/dl)	188.8 ± 56.7	189.3 ± 56.6	> 0.050
HDL-Ch (mg/dl)	81.4 ± 75.4	84.4 ± 57.0	> 0.050
LDL-Ch (mg/dl)	143.1 ± 166.0	133.5 ± 153.7	> 0.050

Table 2 Difference of prevalences of several diseases in males and females

Diseases	Male%	Female%	P value
Abnormal ALT	2.1	0.35	< 0.001
Positive HBsAg	7.3	4.8	< 0.001
Arteriosclerosis of optic fundus	13.4	6.3	< 0.001
Diabetes mellitus	5.1	3.3	< 0.001
Coronary artery disease	3.5	2.3	< 0.001
Hypertension	15.3	8.2	< 0.001
Gallstone	8.9	8.9	> 0.050
Fatty liver	15.8	7.5	< 0.001

Table 3 Relation between hyperlipidemia and age in males and females

Age(yr)	Sex	n	Hypertriglyc erinemia%	Hyperchole sterolemia%	Mixed Hyperlipide mia%	Sum%
< 30	Male	314	11.6	1.5	1.2	14.3
	Female	257	1.1	2.7	0.7	4.5
	Total	571	6.9	2.1	1.0	9.0
30-50	Male	1202	17.3	3.9	4.9	26.1
	Female	726	4.5	4.9	1.3	10.7
	Total	1928	12.5	4.3	3.6	20.3
51-64	Male	702	22.6	6.9	9.2	38.7
	Female	324	16.9	18.5	17.5	52.9
	Total	1026	20.8	10.6	11.8	43.2
≥ 65	Male	365	28.5	12.9	11.3	52.7
	Female	119	24.2	25.0	14.3	63.5
	Total	484	27.4	27.4	12.0	55.4

Table 4 Prevalence of fatty liver in groups of different sex and ages

Age(years)	Sex	Number	Fatty liver n%
< 30	Males	314	11 (6.4)
	Females	257	2 (1.6)
	Total	571	13 (2.3)
30-50	Males	1202	190 (20.7)
	Females	726	25 (5.4)
	Total	1928	215 (11.2)
51-64	Males	702	125 (17.9)
	Females	324	57 (19.7)
	Total	1026	182 (17.7)
≥ 65	Males	365	83 (22.7)
	Females	119	23 (19.3)
	Total	484	106 (21.9)

Table 5 Obesity indices and lipid parameters in groups with and without fatty liver

	Age (years)	BMI (kg/m2)	WHR	TG (mg/dl)	TCh (mg/dl)
Group without fatty liver	44.6 ± 14.3	22.2 ± 2.4	0.8 ± 0.1	105.0 ± 78.4	186.2 ± 59.5
Group with fatty liver	52.3 ± 13.0	26.0 ± 2.4	0.9 ± 0.1	168.6 ± 93.4	202.2 ± 37.7

Table 6 Results of monovariant regression analysis of fatty liver and various parameters

Parameters	B value	β value	T value	P value
Sex	0.038	0.063	2.59	0.0000
Age	0.53	0.062	2.79	0.0018
BMI	0.073	0.522	23.89	0.0000
Waist circumference	0.010	0.216	5.87	0.0000
WHR	0.782	0.129	4.96	0.0000
TG	0.000	0.084	3.08	0.0021
TCh	-0.0000	-0.079	-3.12	0.0016
HDL-Ch	-0.000	-0.047	-2.17	0.0300
LDL-Ch	-0.000	0.332	2.61	0.0092
Hyperlipidemia	0.094	0.160	7.27	0.0000
Arteriosclerosis	0.062	0.087	3.59	0.0000
Hypertension	0.068	0.099	4.45	0.0000
Diabetes mellitus	0.149	0.130	3.42	0.0000
Coronary heart disease	0.142	0.067	3.14	0.0018
Abnormal ALT	0.156	0.069	3.24	0.0012
Positive HBsAg	-0.09	0.063	-3.02	0.0026

Table 7 Results of Logistic multivariant regression analysis

	B	SE	Wald	df	Sig	R	Exp (B)
WHR	2.2	0.19	139.2	1	0.00	0.30	9.1
Abnormal ALT	1.3	0.26	27.0	1	0.00	0.08	3.8
BMI	0.9	0.15	35.3	1	0.00	0.15	2.4
Positive HBsAg	-0.7	0.24	9.3	1	0.00	-0.04	0.05
Hyperlipidemia	0.6	0.06	99.9	1	0.00	0.16	1.8
Diabetes mellitus	0.5	0.11	21.5	1	0.00	0.07	1.7
Hyperlipidemia	0.4	0.05	81.0	1	0.00	0.15	1.5
Sex	0.4	0.05	55.1	1	0.00	0.12	1.5
Arteriosclerosis	0.2	0.09	6.8	1	0.01	0.04	1.3