The relationship between spinal pain and temporomandibular joint disorders in Korea: a nationwide propensity score-matched study

Table 7 Medical Expenditure on Spinal Pain in TMD Patients^a

	Model 1^b			Model 2^c			Model 3^d
	Estimates	SE	Pr > \|t\|	Estimates	SE	Pr > \|t\|	Estimates	SE	Pr > \|t\|
Sex (Ref = Male)
Female	0.59	0.10	0.000	0.60	0.10	0.000	0.54	0.10	0.000
Age (ref = 20–29)
30–39	1.43	0.15	0.000	1.40	0.15	0.000	1.35	0.14	0.000
40–49	2.28	0.15	0.000	2.18	0.15	0.000	1.13	0.22	0.000
50–59	3.44	0.16	0.000	3.33	0.16	0.000	1.91	0.24	0.000
60–69	4.43	0.19	0.000	4.31	0.19	0.000	2.13	0.33	0.000
70 or older	5.69	0.20	0.000	5.46	0.20	0.000	2.9	0.37	0.000
Insurance type (ref = NHI)
Others^e				0.96	0.33	0.003	0.85	0.33	0.010
Region (ref = Seoul)
Capital area				0.06	0.15	0.687	0.1	0.15	0.499
Metropolitan				0.24	0.14	0.084	0.24	0.14	0.091
Rural areas				0.57	0.14	0.000	0.58	0.14	0.000
Medical institution type (ref = general hospital)
Hospital				1.13	0.24	0.000	1.11	0.24	0.000
Clinic				1.97	0.21	0.000	2.04	0.21	0.000
CCI (ref = 0)
2 or less							1.22	0.19	0.000
3–4							2.16	0.30	0.000
5 or more							2.96	0.38	0.000
TMD grade (ref = 1)^f
2							1.06	0.19	0.000
3							1.57	0.26	0.000
Surgery (ref = no)
Yes							−0.63	0.32	0.053
Hospitalization (ref = no)
Yes							2.31	0.93	0.013
R square			0.097			0.108			0.118

^aLinear regression analysis on medical expenditure due to spinal pain
^bModel1: sex, age
^cModel2: Model1 + insurance type, region, medical institution type
^dModel3: Model2 + CCI, TMD grade, surgery, hospitalization
^eOthers: beneficiaries, veterans
^fTMD grade 1, Outpatient days due to TMD, fewer than 6; TMD grade 2, Outpatient days due to TMD, more than 6 and fewer than 12; TMD grade 3, Outpatient days due to TMD, more than 12 or use of hospitalization services
TMD Temporomandibular Disorder, NHI National Health Insurance, CCI Charlson Comorbidity Index, OR Odds Ratio, CI Confidence Interval

ISSN: 1471-2474