Table 3.

Phenotypic, additive genetic correlations (r_g), and non-shared environmental correlations (r_e) between PTSD and chronic pain conditions, along with 95% confidence intervals (in parentheses) from ACE-AE models.

Condition	Phenotypic Correlation with PTSD (95% CI)	Proportion of Phenotypic Correlation (Actual Value [%])		rg (95% CI)	re (95% CI)
		Genetic Influences	Environmental Influences
Any Pain	0.46 (0.42; 0.50)	0.25 (0.54)	0.21 (0.46)	0.61 (0.46; 0.89)	0.41 (0.30; 0.51)
TMD	0.30 (0.20; 0.42)	0.09 (0.31)	0.21 (0.69)	0.24 (−0.08; 0.64)	0.40 (0.17; 0.63)
Tension Headaches	0.57 (0.54; 0.62)	0.29 (0.51)	0.28 (0.49)	0.75 (0.52; 1.00)	0.54 (0.39; 0.67)
Migraine Headaches	0.38 (0.32; 0.43)	0.19 (0.49)	0.19 (0.51)	0.44 (0.24; 0.77)	0.40 (0.23; 0.52)
Chronic Back Pain	0.38 (0.34; 0.41)	0.24 (0.63)	0.14 (0.37)	0.56 (0.40; 0.88)	0.28 (0.16; 0.40)
Chronic Joint Pain	0.45 (0.42; 0.47)	0.27 (0.59)	0.18 (0.41)	0.63 (0.51; 0.86)	0.36 (0.25; 0.47)

Note: Results presented from models which include the A, C, and E components for PTSD, and A and E components for the pain variables. PTSD = posttraumatic stress disorder based on PCL 33 score cutoff; TMD = temporomandibular disorder; Any Pain= the presence of any pain condition. 95% confidence intervals are presented in parentheses. CI = Confidence Interval; r_g = genetic correlation; r_e = non-shared environmental correlation.