Table 1.

Participant demographics and reported pain diagnoses

	Total sample	Respondents	Used Chiro Only	Used Acu Only	Used both	No Acu/chiro use	p-value1
	N=8264	N=6068	n=1579	n=677	n=1278	n=2534	N=6068
Female (%)	69	71	68	75	76	68	<.0001
Age (mean/sd)	61 ± 14	61 ± 13	59 ± 13	61 ± 14	58 ± 13	64 ± 13	<.0001
Caucasian (%)	93	94	95	94	94	94	0.6374
Self-reported diagnoses from survey (%)
Back		64	75	62	76	51	<.0001
Joint pain		57	57	56	57	57	0.9719
Arthritis		54	54	56	49	56	0.0018
Extremity		56	55	57	56	56	0.6739
Neck		38	47	36	53	26	<.0001
Muscle		31	32	31	41	25	<.0001
Headache		23	26	22	33	15	<.0001
Fibromyalgia		15	16	17	22	11	<.0001
Abdomen/pelvis		10	12	9	13	9	<.0001
Other		10	9	13	11	9	0.0190

¹two-tailed p-value for comparing four usage groups based on 1-way ANOVA (continuous data) or Pearson chi-square test (proportions)