Table 1.

Use of adult preventive health services among the intellectual disability: basic characteristics and bivariate analysis

			Used		Did not use		χ 2
Variables	N = 21042	%	n 1  = 3503	%	n 2  = 17539	%	p-value
Overall rate of use				16.65
Gender							< .001
Female	9897	47.03	1808	18.27	8089	81.73
Male	11145	52.97	1695	15.21	9450	84.79
Age							< .001
40-44 years	3753	17.84	628	16.73	3125	83.27
45-49 years	5609	26.66	921	16.42	4688	83.58
50-54 years	4420	21.01	774	17.51	3646	82.49
55-59 years	3089	14.68	609	19.72	2480	80.28
60-64 years	1817	8.64	367	20.20	1450	79.80
65-69 years	1028	4.89	94	9.14	934	90.86
≥ 70 years	1326	6.30	110	8.30	1216	91.70
Educational level							0.535
Elementary school and under	15327	72.84	2566	16.74	12761	83.26
Junior high school	2645	12.57	454	17.16	2191	82.84
Senior (vocational) high school	550	2.61	80	14.55	470	85.45
Junior college and university or above	99	0.47	16	16.16	83	83.84
Unclear	2421	11.51	387	15.99	2034	84.01
Marital status							< .001
Married	6386	30.35	1239	19.40	5147	80.60
Unmarried	8463	40.22	1346	15.90	7117	84.10
Divorced or widowed	677	3.22	139	20.53	538	79.47
Unclear	5516	26.21	779	14.12	4737	85.88
Level of urbanizationa							< .001
Level one	1802	8.56	201	11.15	1601	88.85
Level two	3394	16.13	553	16.29	2841	83.71
Level three	2865	13.62	468	16.34	2397	83.66
Level four	1809	8.60	295	16.31	1514	83.69
Level five	3483	16.55	562	16.14	2921	83.86
Level six	3006	14.29	589	19.59	2417	80.41
Level seven	3173	15.08	569	17.93	2604	82.07
Level eight	1510	7.18	266	17.62	1244	82.38
Premium-based monthly payroll							< .001
Dependents	5303	25.20	720	13.58	4583	86.42
< 15,840	10877	51.69	1898	17.45	8979	82.55
16,500-22,800	4143	19.69	770	18.59	3373	81.41
24,000-28,800	358	1.70	57	15.92	301	84.08
30,300-36,300	210	1.00	31	14.76	179	85.24
> 38,200	151	0.72	27	17.88	124	82.12
Low-income household							< .001
Yes	3713	17.65	799	21.52	2914	78.48
No	17329	82.35	2704	15.60	14625	84.40
Aborigine							0.001
Yes	267	1.27	66	24.72	201	75.28
No	20775	98.73	3437	16.54	17338	83.46
Catastrophic illness/injury							< .001
Yes	2538	12.06	602	23.72	1936	76.28
No	18504	87.94	2901	15.68	15603	84.32
Relevant chronic diseases
Cancer							0.344
Yes	266	1.26	50	18.80	216	81.20
No	20776	98.74	3453	16.62	17323	83.38
Endocrine and metabolic disease							< .001
Yes	4319	20.53	1324	30.66	2995	69.34
No	16723	79.47	2179	13.03	14544	86.97
Mental illness							< .001
Yes	5564	26.44	1416	25.45	4148	74.55
No	15478	73.56	2087	13.48	13391	86.52
Disease of the nervous system							< .001
Yes	2636	12.53	686	26.02	1950	73.98
No	18406	87.47	2817	15.30	15589	84.70
Disease of the circulatory system							< .001
Yes	5035	23.93	1435	28.50	3600	71.50
No	16007	76.07	2068	12.92	13939	87.08
Disease of the respiratory system							< .001
Yes	3047	14.48	886	29.08	2161	70.92
No	17995	85.52	2617	14.54	15378	85.46
Disease of the digestive system							< .001
Yes	4861	23.10	1398	28.76	3463	71.24
No	16181	76.90	2105	13.01	14076	86.99
Disease of the urinary system							< .001
Yes	459	2.18	136	29.63	323	70.37
No	20583	97.82	3367	16.36	17216	83.64
Disease of the skeletal and muscular system and connective tissue							< .001
Yes	3830	18.20	1078	28.15	2752	71.85
No	17212	81.80	2425	14.09	14787	85.91
Disease of the eyes and auxiliary organs							< .001
Yes	640	3.04	161	25.16	479	74.84
No	20402	96.96	3342	16.38	17060	83.62
Infectious diseases							< .001
Yes	839	3.99	210	25.03	629	74.97
No	20203	96.01	3293	16.30	16910	83.70
Congenital malformation							< .001
Yes	277	1.32	71	25.63	206	74.37
No	20765	98.68	3432	16.53	17333	83.47
Skin and subcutaneous tissue disorders							< .001
Yes	1861	8.84	551	29.61	1310	70.39
No	19181	91.16	2952	15.39	16229	84.61
Diseases of the blood and blood-forming organs							< .001
Yes	761	3.62	227	29.83	534	70.17
No	20281	96.38	3276	16.15	17005	83.85
Diseases of the ear and mastoid process							< .001
Yes	735	3.49	232	31.56	503	68.44
No	20307	96.51	3271	16.11	17036	83.89
Severity of intellectual disability							< .001
Mild	3673	17.46	712	19.38	2961	80.62
Moderate	6775	32.20	1194	17.62	5581	82.38
Severe	6385	30.34	1015	15.90	5370	84.10
Very severe	4209	20.00	582	13.83	3627	86.17

^aLevel one: the most urbanized areas.