PTSD Among Shidu Parents in China: The Roles of Personality Types and Social Support.

: The psychological problems of Shidu Parents (SDP) under the China's One-Child Policy have been documented. The purpose of this study was to investigate the relationships among personality types, social support, and post-traumatic stress disorder (PTSD) in SDP. : The PTSD Checklist-Civilian Version (PCL-C), The Big Five Personality Traits (NEO), and Social Support Revalued Scale (SSRS) were administered to the sample of 149 SDP who were over 50 years old and had lost their only child more than one year ago. : Among SDP, mothers were more likely to develop PTSD than fathers (χ = 11.16, < 0.01). Parents who were extraverted had a lower risk of developing PTSD-related symptoms (χ = 8.58, < 0.01), and the effect of neuroticism was significant (χ = 23.73, < 0.01). The more social support parents utilized, the lower the incidence of PTSD ( = 4.56, < 0.01). The result of multilevel linear regression showed that sex, neuroticism, and objective social support remained significantly different after combining all personality types and social support systems in the same model. Social support partially mediated the relationship between neuroticism and PTSD. Meanwhile, it was a complete mediator between extraversion and PTSD. : Female sex/gender, neuroticism, and introversion were risk factors of developing PTSD, while receiving social support protected SDP from developing PTSD symptoms. Losing an only child is undoubtedly an enormous disaster for the family, which has become a huge, unavoidable social problem that must be addressed in China.