Table 2.

Distribution of COMT genotypes and alleles in controls and different chronic MSCs groups separated by gender

	Men						Women
	Met/Met		Met/Val		Val/Val		Met/Met		Met/Val		Val/Val
Genotypes
Controls (%)	259	34.7	351	47.1	136	18.2	246	33.2	360	48.5	136	18.3
Chronic MSCs (%)	185	29.4	332	52.8	112	17.8	272	30.2	458	50.9	170	18.9
Chronic neck pain (%)	58	26.5	118	53.9	43	19.6	91	29.3	166	53.4	54	17.4
Chronic shoulder pain (%)	72	28.3	132	52.0	50	19.7	109	31.4	182	52.4	56	16.1
Chronic elbow pain (%)	20	22.7	52	59.1	16	18.2	52	32.1	81	50.0	29	17.9
Chronic wrist/hand pain (%)	36	27.9	71	55.0	22	17.1	68	28.9	118	50.2	49	20.9
Chronic chest/abdomen pain (%)	17	28.3	37	61.7	6	10.0	37	35.9	49	47.6	17	16.5
Chronic upper back pain (%)	30	37.5	32	40.0	18	22.5	63	33.7	99	52.9	25	13.4
Chronic lower back pain (%)	67	30.7	110	50.5	41	18.8	87	28.2	161	52.3	60	19.5
Chronic hip pain (%)	44	28.0	87	55.4	26	16.6	94	32.1	141	48.1	58	19.8
Chronic knee pain (%)	46	28.4	76	46.9	40	24.7	91	30.3	161	53.7	48	16.0
Chronic ankle/foot pain (%)	40	29.0	76	55.1	22	15.9	75	28.8	138	53.1	47	18.1
Chronic widespread pain (%)	60	30.0	103	51.5	37	18.5	102	30.7	170	51.2	60	18.1
Alleles	Met		Val				Met		Val
Controls (%)	869	58.2	623	41.8			852	57.4	632	42.6
Chronic MSCs (%)	702	55.8	556	44.2			1002	55.7	798	44.3
Chronic neck pain (%)	234	53.4	204	46.6			348	55.9	274	44.1
Chronic shoulder pain (%)	276	54.3	232	45.7			400	57.6	294	42.4
Chronic elbow pain (%)	92	52.3	84	47.7			185	57.1	139	42.9
Chronic wrist/hand pain (%)	143	55.4	115	44.6			254	54.0	216	46.0
Chronic chest/abdomen pain (%)	71	59.2	49	40.8			123	59.7	83	40.3
Chronic upper back pain (%)	92	57.5	68	42.5			225	60.2	149	39.8
Chronic lower back pain (%)	244	56.0	192	44.0			335	54.4	281	45.6
Chronic hip pain (%)	175	55.7	139	44.3			329	56.1	257	43.9
Chronic knee pain (%)	168	51.9	156	48.1			343	57.2	257	42.8
Chronic ankle/foot pain (%)	156	56.5	120	43.5			288	55.4	232	44.6
Chronic widespread pain (%)	223	55.8	177	44.2			374	56.3	290	43.7