Table 1.

Comparison of socio-demographic factors and co-morbidities between Chinese medicine (CM) users and nonusers in patients with uterine fibroids

	CM
	Nonusers		Users		Total		P -value a
	N = 32710		N = 11412		N = 44122
	n	%	n	%	n	%
Age, years							< 0.0001
<20	202	0.6	47	0.4	249	0.5
20-29	2634	8.1	1030	9.0	3664	8.3
30-39	8998	27.5	3665	32.1	12663	28.7
40-49	15559	47.6	5167	45.3	20726	47.0
≥50	5317	16.5	1503	13.2	6820	15.5
Mean ± SD	42.4 ± 8.9		41.4 ± 8.5		42.2 ± 8.8
Income, US$ per month							0.1800
<520	8075	24.7	2725	23.9	10800	24.5
520 - 639	8173	25.0	2966	26.0	11139	25.3
640- 759	8556	26.2	2921	25.6	11477	26.0
≥760	7906	24.2	2800	24.5	10706	24.3
Mean ± SD	20098 ± 12630		20333 ± 12136		20158 ± 12505
Occupational status							<0.0001
White collar	19243	58.8	6972	61.1	26215	59.4
Blue collar	9900	30.1	3312	29.0	13212	29.9
Others	3567	10.9	1128	9.9	4695	10.6
Area							<0.0001
Northern Taiwan	16281	50.0	4820	42.2	21101	47.8
Central Taiwan	5758	17.6	2656	23.3	8414	19.1
Southern Taiwan	9265	28.3	3511	30.8	12776	29.0
Eastern Taiwan and offshore islands	1406	4.3	425	3.7	1831	4.15
Co-morbidity
Iron-deficiency anemia	5259	16.1	2213	19.4	7472	16.9	<0.0001
Hypermenorrhea	8388	25.6	3650	32.0	12038	27.3	<0.0001
Dysmenorrhea	7456	22.8	4246	37.2	11702	26.5	<0.0001
Infertility	2570	7.9	1358	11.9	3928	8.9	<0.0001

^aChi-square test and Wilcoxon rank sum test.