Table 2

Results of ordered logistic regression

Self-rated health	China			US			Overall
Self-rated health	OR	P value	95% CI	OR	P value	95% CI	OR	P value	95% CI
USA versus China	–	–	–	–	–	–	4.88	< 0.001	4.06 to 5.86
Age	1.00	0.753	0.99 to 1.02	1.02	< 0.001	1.01 to 1.03	1.01	0.140	1.00 to 1.02
Female	1.13	0.268	0.91 to 1.41	1.06	0.321	0.95 to 1.17	1.13	0.051	1.00 to 1.27
Living arrangements
Living alone	1.25	0.043	1.01 to 1.56	0.96	0.528	0.86 to 1.08	1.10	0.125	0.97 to 1.24
Living with others without spouse or partner	1.06	0.605	0.85 to 1.31	0.85	0.049	0.73 to 1.00	1.01	0.931	0.85 to 1.19
Number of living children	1.00	0.840	0.96 to 1.05	1.02	0.166	0.99 to 1.04	1.01	0.355	0.99 to 1.04
Currently working	1.11	0.180	0.95 to 1.29	1.31	< 0.001	1.16	1.15	0.016	1.03 to 1.29
Educational level
Upper secondary andvocational training	1.26	0.302	0.81 to 1.94	1.23	0.005	1.07 to 1.41	1.20	0.125	0.95 to 1.52
Tertiary	0.94	0.787	0.62 to 1.43	1.48	< 0.001	1.28 to 1.71	1.40	< 0.001	1.17 to 1.68
ADLs
1	0.52	< 0.001	0.40 to 0.67	0.48	< 0.001	0.40 to 0.57	0.51	< 0.001	0.43 to 0.62
2	0.35	< 0.001	0.24 to 0.51	0.25	< 0.001	0.18 to 0.33	0.31	< 0.001	0.23 to 0.41
3	0.31	0.001	0.16 to 0.62	0.23	< 0.001	0.14 to 0.40	0.29	< 0.001	0.17 to 0.50
IADLs	0.91	0.288	0.76 to 1.08	0.90	0.302	0.74 to 1.10	0.91	0.233	0.78 to 1.06
Self-reported memory
Very good	0.47	0.159	0.17 to 1.34	1.06	0.792	0.69 to 1.61	0.78	0.313	0.48 to 1.27
Good	0.22	0.004	0.08 to 0.61	0.57	0.008	0.38 to 0.86	0.40	< 0.001	0.24 to 0.64
Fair	0.09	< 0.001	0.03 to 0.24	0.31	< 0.001	0.20 to 0.47	0.18	< 0.001	0.11 to 0.29
Poor	0.05	< 0.001	0.02 to 0.15	0.20	< 0.001	0.12 to 0.32	0.11	< 0.001	0.06 to 0.18
Recall summary score	0.98	0.124	0.96 to 1.00	1.02	0.006	1.01 to 1.04	0.99	0.467	0.98 to 1.01
Number of mental health problems
1	0.75	0.002	0.62 to 0.90	0.60	< 0.001	0.53 to 0.67	0.70	< 0.001	0.61 to 0.79
2	0.46	< 0.001	0.37 to 0.57	0.39	< 0.001	0.33 to 0.46	0.44	< 0.001	0.38 to 0.52
3	0.38	< 0.001	0.30 to 0.49	0.26	< 0.001	0.21 to 0.32	0.35	< 0.001	0.29 to 0.43
4	0.27	< 0.001	0.20 to 0.35	0.20	< 0.001	0.15 to 0.26	0.26	< 0.001	0.21 to 0.32
5	0.24	< 0.001	0.17 to 0.33	0.19	< 0.001	0.14 to 0.27	0.23	< 0.001	0.17 to 0.30
6	0.15	< 0.001	0.10 to 0.24	0.29	< 0.001	0.18 to 0.45	0.18	< 0.001	0.12 to 0.25
High blood pressure	0.75	< 0.001	0.64 to 0.86	0.67	< 0.001	0.60 to 0.75	0.73	< 0.001	0.65 to 0.81
Diabetes	0.84	0.110	0.67 to 1.04	0.61	< 0.001	0.55 to 0.68	0.72	< 0.001	0.63 to 0.82
Cancer	0.43	0.004	0.25 to 0.76	0.59	< 0.001	0.53 to 0.67	0.60	< 0.001	0.52 to 0.68
Lung disease	0.64	< 0.001	0.52 to 0.78	0.52	< 0.001	0.44 to 0.60	0.61	< 0.001	0.52 to 0.72
Heart problem	0.65	< 0.001	0.54 to 0.79	0.57	< 0.001	0.52 to 0.63	0.64	< 0.001	0.57 to 0.72
Stroke	0.54	< 0.001	0.38 to 0.75	0.72	< 0.001	0.62 to 0.85	0.62	< 0.001	0.51 to 0.75
Psychiatric problems	0.61	0.032	0.39 to 0.96	0.86	0.040	0.75 to 0.99	0.77	0.001	0.67 to 0.89
Arthritis	0.73	< 0.001	0.63 to 0.84	0.64	< 0.001	0.57 to 0.71	0.70	< 0.001	0.63 to 0.78
Ever drinking	0.97	0.736	0.82 to 1.15	1.41	< 0.001	1.28 to 1.57	1.11	0.087	0.99 to 1.24
Ever smoking	1.04	0.686	0.85 to 1.27	0.93	0.150	0.84 to 1.03	0.98	0.691	0.87 to 1.09

Bold p-values indicate statistically significant.