PMID- 26634215 OWN - NLM STAT- MEDLINE DCOM- 20161005 LR - 20190723 IS - 2314-6753 (Electronic) IS - 2314-6745 (Print) VI - 2016 DP - 2016 TI - New Methods in Exploring Old Topics: Case Studying Brittle Diabetes in the Family Context. PG - 6437452 LID - 10.1155/2016/6437452 [doi] LID - 6437452 AB - BACKGROUND: In questing for a more refined quantitative research approach, we revisited vector autoregressive (VAR) modeling for the analysis of time series data in the context of the so far poorly explored concept of family dynamics surrounding instable diabetes type 1 (or brittle diabetes). METHOD: We adopted a new approach to VAR analysis from econometrics referred to as the optimized multivariate lag selection process and applied it to a set of raw data previously analyzed through standard approaches. RESULTS: We illustrated recurring psychosomatic circles of cause and effect relationships between emotional and somatic parameters surrounding glycemic control of the child's diabetes and the affective states of all family members. CONCLUSION: The optimized multivariate lag selection process allowed for more specific, dynamic, and statistically reliable results (increasing R(2) tenfold in explaining glycemic variability), which were derived from a larger window of past explanatory variables (lags). Such highly quantitative versus historic more qualitative approaches to case study analysis of psychosomatics surrounding diabetes in adolescents were reflected critically. FAU - Gunther, Moritz Philipp AU - Gunther MP AD - Psychoanalytic Family Therapy, Center of Child and Adolescent Medicine, Justus-Liebig-University, Feulgenstrasse 10-12, 35392 Giessen, Germany. FAU - Winker, Peter AU - Winker P AD - Department of Economics, Justus-Liebig-University Giessen, Licher Strasse 64, 35394 Giessen, Germany. FAU - Wudy, Stefan A AU - Wudy SA AD - Pediatric Endocrinology & Diabetology, Center of Child and Adolescent Medicine, Justus-Liebig-University, Feulgenstrasse 10-12, 35392 Giessen, Germany. FAU - Brosig, Burkhard AU - Brosig B AD - Psychoanalytic Family Therapy, Center of Child and Adolescent Medicine, Justus-Liebig-University, Feulgenstrasse 10-12, 35392 Giessen, Germany. LA - eng PT - Case Reports PT - Journal Article DEP - 20151108 PL - England TA - J Diabetes Res JT - Journal of diabetes research JID - 101605237 RN - 0 (Blood Glucose) SB - IM MH - Adolescent MH - *Blood Glucose MH - Diabetes Mellitus, Type 1/blood/*diagnosis/*genetics MH - Humans MH - Male PMC - PMC4655046 EDAT- 2015/12/04 06:00 MHDA- 2016/10/07 06:00 PMCR- 2015/11/08 CRDT- 2015/12/04 06:00 PHST- 2014/10/31 00:00 [received] PHST- 2015/03/07 00:00 [accepted] PHST- 2015/12/04 06:00 [entrez] PHST- 2015/12/04 06:00 [pubmed] PHST- 2016/10/07 06:00 [medline] PHST- 2015/11/08 00:00 [pmc-release] AID - 10.1155/2016/6437452 [doi] PST - ppublish SO - J Diabetes Res. 2016;2016:6437452. doi: 10.1155/2016/6437452. Epub 2015 Nov 8.