. Author manuscript; available in PMC: 2022 Jan 1.

Published in final edited form as: Psychosom Med. 2021 Feb-Mar;83(2):109–117. doi: 10.1097/PSY.0000000000000899

Table 2.

Standardized variance components from the univariate models.

	Model	Standardized Estimates (95% CI)

Condition		a²	c²	e²
PTSD	ACE	0.43 (0.15; 0.63)	0.13 (0.00; 0.38)	0.44 (0.36; 0.52)
Any Pain	ACE	0.34 (0.09; 0.41)	0.00 (0.00; 0.21)	0.66 (0.60; 0.73)
Any Pain	AE	0.34 (0.27; 0.41)	–	0.66 (0.59; 0.73)
TMD	ACE	0.38 (0.00; 0.59)	0.00 (0.00; 0.40)	0.62 (0.41; 0.85)
TMD	AE	0.38 (0.15; 0.59)	–	0.62 (0.41; 0.85)
Tension Headaches	ACE	0.15 (0.00; 0.48)	0.19 (0.00; 0.42)	0.66 (0.52; 0.80)
Migraine Headaches	ACE	0.38 (0.00; 0.54)	0.03 (0.00; 0.44)	0.59 (0.46; 0.74)
Migraine Headaches	AE	0.41 (0.27; 0.54)	–	0.59 (0.46; 0.73)
Chronic Back Pain	ACE	0.38 (0.09; 0.48)	0.02 (0.00; 0.27)	0.60 (0.52; 0.69)
Chronic Back Pain	AE	0.40 (0.32; 0.48)	–	0.60 (0.52; 0.68)
Chronic Joint Pain	ACE	0.36 (0.12; 0.44)	0.00 (0.00; 0.20)	0.64 (0.56; 0.73)
Chronic Joint Pain	AE	0.36 (0.28; 0.44)	–	0.64 (0.56; 0.73)

Note: Results presented from ACE and AE models, best-fitting model in bold. PTSD = posttraumatic stress disorder based on PCL 33 score cutoff. TMD = temporomandibular disorder; Any Pain= the presence of any pain condition; a²: additive genetic; e²: non-shared environment.