RESUMEN
OBJECTIVE: Systemic Therapy conceives mental health symptoms in the context of social systems. Previous meta-analyses on Systemic Therapy focused on symptoms. This meta-analysis aims to focus on family system functioning while including all types of outcomes. METHOD: We conducted a systematic literature research in multiple databases (PsycInfo, PubMed, Embase, Cochrane Central). We included RCT-studies on adults with psychiatric diagnoses, which compared Systemic Therapy with active psychosocial control. The literature research resulted in 171 coded effect sizes of 32 RCTs. We conducted a random-effects three-level meta-analysis. We categorized outcomes into symptoms of patients, family system functioning, further secondary outcomes of patients, and psychopathology of family members. RESULTS: The results show a small significant overall effect size of g = .30 (CI: .15-.45, p < .001, k = 171, s = 32) for all outcomes. Systemic Therapy revealed small effect sizes with regard to family system functioning (g = .34, z = 3.51, p = .0004, k = 26, s = 12), symptoms (g = .30, z = 3.74, p = .0002, k = 73, s = 29), and further secondary outcomes (g = .32, z = 3.83, p = .0001, k = 63, s = 19). The effect sizes for psychopathology of family system members were reported rarely (k = 9, s = 6). CONCLUSION: This meta-analysis shows the potential relevance of investigating family system functioning as a primary outcome for Systemic Therapy.
RESUMEN
Human-directed selective breeding has modified the phenotype of the modern Persian cat towards an extreme brachycephalic phenotype ('peke-face' Persian), which originates from a spontaneous mutation that first appeared in the 1950s in traditional Persian types. It was suggested that the peke-face phenotype results from pathologic skull development and might represent a craniosynostosis of the coronal sutures. We followed this hypothesis and investigated the time dependent status of the neurocranial sutures and synchondroses in an ontogenetic series of doll-faced and peke-faced Persian cats compared to Domestic Shorthair cats (DSHs). Cranial suture closure was assessed by examining an ontogenetic series of formalin-fixed head specimens (n = 55) and dry skulls (n = 32) using micro-computed tomography. Sagittal, metopic, coronal and lambdoid sutures as well as intersphenoidal, spheno-occipital and spheno-ethmoid synchondroses were examined. Logistic regression analysis was performed to test the global effect of age on suture closure within a group of peke-face Persians, doll-face Persians and DSHs and the 50% probability of having a closed suture was calculated and compared between groups. Age was a perfect predictor for the condition of the coronal sutures in peke-face Persians. Coronal sutures were found to be closed at 0-0.3 months. In doll-face and DSHs, coronal sutures were open throughout the lifetime with the exception of a few very old cats. Results of this study confirmed a coronal craniosynostosis that likely causes the extreme brachycephalic skull morphology in the peke-face Persian.