Table 2.

Standardized annual person-times and person-days of inpatient cancer care per thousand populations

Grouping criteria	Person-times of hospital admissions							Person-days of hospital stay
	Total	Males (M)	Females (F)	P (M vs. F)	Urban	Rural	P (U vs. R)	Total	Males	Females	P (M vs F)	Urban	Rural	P (U vs R)
Age (years)
Under 45	2.25	0.91	3.58	<0.001	2.98	1.47	0.005	34.05	23.35	44.61	<0.001	31.63	36.63	<0.001
45 to 54	5.93	5.94	5.93	0.994	6.86	4.94	0.202	126.40	143.10	111.70	<0.001	168.64	81.26	<0.001
55 to 64	10.19	13.67	6.72	0.001	9.06	11.20	0.291	180.98	233.13	128.91	<0.001	191.34	171.75	<0.001
65 to 74	7.26	10.34	3.84	0.003	7.54	7.00	0.805	158.80	219.21	91.49	<0.001	157.08	160.46	0.405
75 or over	12.69	22.11	4.06	<0.001	14.05	11.47	0.509	233.54	382.28	97.33	<0.001	275.21	196.21	<0.001
P (value)	<0.001	<0.001	0.026	NA	<0.001	<0.001	NA	<0.001	<0.001	<0.001	NA	<0.001	<0.001	NA
Type of health insurance
NCMC	3.53	4.22	2.78	0.021	2.74	3.97	0.061	54.87	63.05	45.72	<0.001	43.51	60.90	0.032
CEMI	6.16	4.65	7.46	0.131	6.47	0.00	0.076	145.62	152.11	135.65	<0.001	154.34	34.08	<0.001
CRMI	6.23	3.24	9.76	0.002	6.54	1.66	0.142	74.68	83.85	80.73	<0.001	80.74	16.05	<0.001
URMI	2.64	3.75	1.59	0.139	1.17	3.43	0.142	86.95	137.16	45.82	<0.001	32.30	116.34	<0.001
Others	2.29	2.49	2.07	0.714	2.67	1.40	0.259	61.25	56.23	61.65	<0.001	56.18	61.44	<0.001
P (value)	<0.001	0.537	<0.001	NA	<0.001	0.125	NA	<0.001	<0.001	<0.001	NA	<0.001	<0.001	NA
Household income (quartile)
Q1	4.93	5.08	4.79	0.828	3.85	5.44	0.235	63.51	66.98	58.44	<0.001	47.75	73.02	<0.001
Q2	3.65	2.45	5.00	0.004	5.38	2.14	<0.001	53.17	48.67	58.08	0.051	72.82	35.64	<0.001
Q3	4.64	5.43	3.76	0.116	4.63	4.66	0.769	73.91	85.42	61.15	<0.001	69.73	78.88	0.083
Q4	5.19	5.32	4.77	0.603	6.10	4.33	0.092	144.32	160.27	129.58	<0.001	157.88	133.54	<0.001
P (value)	<0.001	<0.001	0.021	NA	0.008	<0.001	NA	<0.001	<0.001	<0.001	NA	<0.001	<0.001	NA
Education
No education	2.34	2.91	2.01	0.232	3.02	1.96	0.155	47.00	45.47	44.70	0.378	50.09	45.28	0.052
Primary school	4.41	4.70	3.15	0.112	3.16	5.28	0.039	74.65	76.13	62.51	<0.001	52.94	91.74	<0.001
Middle school	4.27	4.36	2.77	0.092	4.03	4.79	0.457	86.66	100.52	39.69	<0.001	88.96	81.11	<0.001
Secondary or higher school	5.80	3.65	7.76	0.006	7.48	2.26	0.003	108.23	93.19	119.02	<0.001	140.40	13.03	<0.001
P (value)	<0.001	0.327	<0.001	NA	<0.001	<0.001	NA	<0.001	<0.001	<0.001	NA	<0.001	<0.001	NA
Total	4.24	4.04	4.40	0.492	4.77	3.69	0.040	76.78	82.97	70.50	<0.001	82.52	71.97	<0.001

Note: NCMC new corporative medical care, CEMI city employee medical insurance, CRMI city resident medical insurance, URMI urban and rural medical insurance, the power for the differences in person-times of hospital admissions among different groups was calculated using χ ² test and that in person-days of hospital stay, rank sum test