Table 4

Decomposition of inequality of adult obesity in China 1997–2011

Obesity	1997		2000		2004		2006		2009		2011
Obesity	Cont.	%	Cont.	%	Cont.	%	Cont.	%	Cont.	%	Cont.	%
LNINCOME	0.0704	53.45	0.0212	19.95	0.0568	57.08	0.0506	54.63	0.0247	42.68	−0.0095	−53.90
Male	−0.0001	−0.11	−0.0002	−0.21	−0.0004	−0.45	0.0004	0.47	0.0006	1.05	0.0001	0.40
Urban	0.0293	22.29	0.0274	25.73	0.0171	17.20	0.0169	18.22	0.0128	22.05	0.0094	52.94
Health insurance	0.0180	13.68	0.0325	30.60	0.0048	4.84	0.0029	3.13	−0.0009	−1.51	−0.0008	−4.61
Primary school	−0.0005	−0.36	0.0012	1.12	0.0010	1.03	−0.0004	−0.41	−0.0017	−2.96	−0.0023	−12.99
Middle school	−0.0005	−0.34	0.0003	0.25	0.0009	0.93	−0.0003	−0.37	−0.0004	−0.77	−0.0013	−7.50
High school	−0.0047	−3.57	−0.0050	−4.70	−0.0060	−6.08	−0.0055	−5.91	−0.0036	−6.15	−0.0021	−11.68
College and above	−0.0042	−3.16	−0.0139	−13.10	−0.0121	−12.20	−0.0143	−15.43	−0.0111	−19.20	−0.0097	−54.71
Married	0.0009	0.68	0.0022	2.11	0.0024	2.39	0.0036	3.92	0.0036	6.19	0.0010	5.69
Else	−0.0033	−2.49	−0.0002	−0.22	−0.0006	−0.57	−0.0037	−4.02	−0.0044	−7.66	−0.0031	−17.34
31–45	0.0009	0.69	0.0005	0.48	−0.0003	−0.30	0.0006	0.61	−0.0017	−2.86	−0.0003	−1.64
46–60	0.0102	7.74	0.0076	7.19	0.0041	4.12	0.0035	3.78	0.0054	9.34	0.0033	18.39
>60	−0.0147	−11.13	−0.0044	−4.13	−0.0024	−2.38	−0.0050	−5.44	−0.0020	−3.47	−0.0017	−9.78
Smoke	0.0021	1.60	0.0020	1.84	0.0000	−0.03	−0.0015	−1.64	0.0008	1.38	0.0003	1.61
Drink	0.0004	0.31	0.0015	1.41	0.0019	1.89	0.0008	0.81	−0.0004	−0.68	0.0019	10.88
Tea	0.0014	1.05	0.0012	1.16	0.0010	0.98	0.0051	5.53	−0.0001	−0.15	0.0012	7.00
Activity	0.0001	0.11	−0.0006	−0.54	0.0043	4.30	0.0041	4.40	0.0018	3.15	−0.0032	−17.83
Middle	0.0005	0.37	−0.0040	−3.80	−0.0016	−1.62	0.0004	0.46	0.0000	−0.07	0.0040	22.42
West	0.0147	11.19	0.0068	6.43	0.0220	22.14	0.0170	18.40	0.0180	31.09	0.0261	147.58

Cont. means contribution to concentration index; % means the percentage of contribution to concentration index.