The authors do not discard the possibility that cultural habits and socioeconomic conditions may also explain familial aggregation
. Publications show divergent findings regarding this issue.
and excess maternal transmission of type 2 diabetes in Tunisia.
In India, nearly 75% of type-2 diabetics are reported to have first degree family history of diabetes, indicating a strong familial aggregation
.  However, we could not find any association with familial aggregation
in our study, because of the fact that family history of diabetes may not be noted down in the record.
Pachman, "Familial aggregation
of autoimmune disease in juvenile dermatomyositis," Pediatrics, vol.
of Parkinson's disease [Letter].
and segregation analysis studies of ARM have resulted in valuable information about the genetics of ARM.
The familial aggregation
pattern of the quantitative data from each measure in the battery was analyzed (Raskind et al., 2001).
Dropping both A and C from the model, resulted in a significantly worse fit for each measure ([[Delta][Chi]2.sup.2] = 37.24 (IQ), 22.06 (HITS), 19.03 (MAE), 8.90 (SD)) confirming that there was significant familial aggregation
. However, dropping only one of A [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] from the ACE model resulted in a nonsignificant [[Delta][Chi-square] indicating that either, or both, could be the cause of the familial correlation.
Letter: Familial aggregation
in nasopharyngeal carcinoma.
Camilla Krogh, of the Statens Serum Insti-tut, Copenhagen, Denmark, and colleagues examined the familial aggregation
of py-loric stenosis from monozygotic twins (derived from a single fertilized egg) to fourth-generation relatives in the population of Denmark.
Family history and genetic predisposition: Familial aggregation
and genetics factors are thought to play a role in the development of OSA.
Thus, both case-control and cohort studies strongly support the hypothesis that familial aggregation
and genetic susceptibility play an important role in the development of pancreatic cancer.