Table 4a.

Descriptive statistics

CPGa	Mean	SD	n
PTSDb
No disabilities	0.00	0.000	66
Grade I no disabilities	1.79	0.418	28
Grade II moderate limitation	1.53	0.507	34
Grade III and IV severe limitation	1.27	0.785	30
Total	0.89	0.889	158
Miscarriagec
No disabilities	0.32	0.469	66
Grade I no disabilities	0.54	0.508	28
Grade II moderate limitation	0.82	0.387	34
Grade III and IV severe limitation	0.70	0.466	30
Total	0.54	0.500	158

^aCPG of TMD symptomatology scoring system of RDC⁄TMD,[18] ^bPTSD intensity scoring system, the sample categorized into three subgroups according to their IES-R scores,[16] ^cStudy group and control group. RDC⁄TMD=Research Diagnostic Criteria for Temporomandibular Disorders, PTSD=Posttraumatic stress disorder, SD=Standard deviation, CPG=Chronic pain grade, IES-R=Impact of Events Scale-Revised, TMD=Temporomandibular joint disorder