Liver Governs Tendon: A Theory from Traditional Chinese Medicine—Evidence from a Population-Based Matched Cohort Study in Taiwan for the Association of Chronic Liver Disease and Common Diseases in the Chiropractic Office

Table 3

Incidence rates and hazard ratio for internal derangement of knee to chronic liver disease stratified by demographic factors.

Variables	Chronic liver disease						Crude HR	Adjusted HR
	No			Yes
	()			()
	Event	Person-years	IR	Event	Person-years	IR	(95% CI)	(95% CI)
Total	357	491080	0.73	125	124335	1.01	1.38 (1.13–1.69)	1.26 (1.02–1.54)
Sex
Female	104	159884	0.65	44	40611	1.08	1.66 (1.17–2.37)	1.53 (1.07–2.18)
Male	253	331196	0.76	81	83724	0.97	1.27 (0.99–1.63)	1.14 (0.89–1.47)
Age, years
18–39	233	316173	0.74	78	81066	0.96	1.30 (1.01–1.69)	1.22 (0.95–1.58)
40–64	115	162922	0.71	42	40432	1.04	1.47 (1.03–2.09)	1.29 (0.90–1.83)
More than 65	9	11985	0.75	5	2837	1.76	2.35 (0.79–7.01)	1.74 (0.57–5.29)
Major trauma	319	348970	0.91	116	98409	1.18	1.29 (1.04–1.59)	1.26 (1.02–1.56)
Anemic disorder	13	17316	0.75	22	9713	2.26	3.01 (1.52–5.97)	2.80 (1.40–5.59)

IR: incidence rates, per 1,000 person-years; HR: hazard ratio; CI: confidence interval.
Adjusted HR: mutually adjusted for age, gender, and comorbidities in Cox proportional hazards regression.
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