scholarly journals Endoscopic screening of relatives of patients with colorectal cancer

Gut ◽  
1998 ◽  
Vol 42 (1) ◽  
pp. 71-75 ◽  
Author(s):  
L M Hunt ◽  
P S Rooney ◽  
J D Hardcastle ◽  
N C Armitage

Background—The risk of colorectal cancer is higher among relatives of those affected. The neoplastic yield reported from screening such individuals varies enormously between studies and depends on the age and strength of the family history of those screened.Aims—To ascertain the neoplastic yield of endoscopic screening of first degree relatives of patients with colorectal cancer by age and familial risk.Subjects—A total of 330 individuals with a family history of colorectal cancer.Method—Endoscopic screening conducted according to a protocol.Results—Adenomas were found in 12%, and adenomas larger than 1 cm in 8%, of “high risk” individuals screened primarily by colonoscopy. Of those with neoplasia, 26% had lesions at or proximal to the splenic flexure. Neoplasia was found in 9.5% of individuals at lower familial risk, screened primarily by 60 cm flexible sigmoidoscopy, 4% of whom had neoplasia larger than 1 cm in size or cancer. Neoplastic yield was greatest in the fourth and fifth decades in those at highest risk, but increased with age in those at lower risk.Conclusions—For individuals with two or more first degree relatives, or relatives who have developed colorectal cancer at a young age, colonoscopy appears to be the only satisfactory method of screening, but 60 cm flexible sigmoidoscopy may be useful in those at lower levels of risk.

1993 ◽  
Vol 23 (4) ◽  
pp. 915-923 ◽  
Author(s):  
A. E. Korten ◽  
A. F. Jorm ◽  
A. S. Henderson ◽  
G. A. Broe ◽  
H. Creasey ◽  
...  

SynopsisFamily history of Alzheimer's disease (AD) was investigated using a telephone re-interview of 99 cases and 116 controls selected from a case–control study of 170 matched pairs. It was found that the family history method used in the initial interview was satisfactory in identifying first-degree relatives and assessing their ages of birth and death, but the number of first-degree relatives suffering from AD was probably under-estimated. Family history of AD was confirmed as a risk factor for AD. Higher estimates of cumulative incidence were obtained among case relatives than among control relatives. No evidence was found to support the hypothesis that a familial form of AD is more common in those with earlier onset AD (before age 75) in those who display early, prominent features of aphasia or apraxia, or that an AD gene may be sex-linked. The curves for cumulative incidence showed no tendency to reach an asymptote, as is implied by the theory that some forms of AD are due to the action of an autosomal dominant gene. Estimates of lifetime risk by age 90 were within the range found by other investigators. Much larger samples of the very old are needed to obtain estimates of total lifetime risk with smaller standard errors.


2017 ◽  
Vol 19 (6) ◽  
pp. 690-695 ◽  
Author(s):  
Esther B. Dupépé ◽  
Daxa M. Patel ◽  
Brandon G. Rocque ◽  
Betsy Hopson ◽  
Anastasia A. Arynchyna ◽  
...  

OBJECTIVE Although there are known risk factors for the development of neural tube defects (NTDs), little is known regarding the role of family history. The authors' goal in this study is to describe the family history in their population of patients with NTDs. METHODS Surveys were completed for 254 patients who were accompanied by their biological mother during their annual visit to the multidisciplinary Spina Bifida Clinic at Children's of Alabama. An NTD has been diagnosed in all patients who are seen in this clinic (myelomeningocele, lipomeningocele, split cord malformation, and congenital dermal sinus tract). Each mother answered questions regarding known NTD risk factors and their pregnancy, as well as the family history of NTDs, other CNS disorders, and birth defects. RESULTS The overall prevalence of family history of NTDs in children with an NTD was 16.9% (n = 43), of which 3.1% (n = 8) were in first-degree relatives. In patients with myelomeningocele, 17.7% (n = 37) had a positive family history for NTDs, with 3.8% in first-degree relatives. Family history in the paternal lineage for all NTDs was 8.7% versus 10.6% in the maternal lineage. Twenty-two patients (8.7%) had a family history of other congenital CNS disorders. Fifteen (5.9%) had a family history of Down syndrome, 12 (4.7%) had a family history of cerebral palsy, and 13 (5.1%) patients had a family history of clubfoot. Fourteen (5.5%) had a family history of cardiac defect, and 13 (5.1%) had a family history of cleft lip or palate. CONCLUSIONS The family history of NTDs was 16.9% in children with NTD without a difference between maternal and paternal lineage. This high rate of positive family history suggests that genetics and epigenetics may play a larger role in the pathogenesis of NTD in the modern era of widespread folate supplementation.


Author(s):  
Yu Tian ◽  
Elham Kharazmi ◽  
Hermann Brenner ◽  
Xing Xu ◽  
Kristina Sundquist ◽  
...  

Background: The aim of this study was to explore the risk of invasive colorectal cancer (CRC) in relatives of patients with colorectal carcinoma in situ (CCIS), which is lacking in the literature. Patients and Methods: We collected data from Swedish family-cancer datasets and calculated standardized incidence ratio (SIR) and cumulative risk of CRC in family histories of CCIS in first- and second-degree relatives. Family history was defined as a dynamic (time-dependent) variable allowing for changes during the follow-up period from 1958 to 2015. Of 12,829,251 individuals with available genealogical data, 173,796 were diagnosed with CRC and 40,558 with CCIS. Results: The lifetime (0–79 years) cumulative risk of CRC in first-degree relatives of patients with CCIS was 6.5%, which represents a 1.6-fold (95% CI, 1.5–1.7; n=752) increased risk. A similarly increased lifetime cumulative risk (6.7%) was found among first-degree relatives of patients with CRC (SIR, 1.6; 95% CI, 1.6–1.7; n=6,965). An increased risk of CRC was also found in half-siblings of patients with CCIS (SIR, 1.9; 95% CI, 1.1–3.0; n=18) and also in half-siblings of patients with CRC (SIR, 1.7; 95% CI, 1.3–2.1; n=78). Moreover, the increased risk of CRC was higher for younger age at diagnosis of CCIS in the affected first-degree relative and for younger age at diagnosis of CRC in the index person. Conclusions: Results of this study show that first-degree relatives and half-siblings of patients with CCIS have an increased risk of CRC, which is comparable in magnitude to the risk of those with a family history of invasive CRC. These findings extend available evidence on familial risk of CRC and may help to refine guidelines and recommendations for CRC screening.


2016 ◽  
Vol 150 (4) ◽  
pp. S836
Author(s):  
Elizabeth T. Jacobs ◽  
Samir Gupta ◽  
John A. Baron ◽  
Amanda Cross ◽  
David Lieberman ◽  
...  

2008 ◽  
Vol 38 (12) ◽  
pp. 1793-1802 ◽  
Author(s):  
B. J. Milne ◽  
T. E. Moffitt ◽  
R. Crump ◽  
R. Poulton ◽  
M. Rutter ◽  
...  

BackgroundThere is increased interest in assessing the family history of psychiatric disorders for both genetic research and public health screening. It is unclear how best to combine family history reports into an overall score. We compare the predictive validity of different family history scores.MethodProbands from the Dunedin Study (n=981, 51% male) had their family history assessed for nine different conditions. We computed four family history scores for each disorder: (1) a simple dichotomous categorization of whether or not probands had any disordered first-degree relatives; (2) the observed number of disordered first-degree relatives; (3) the proportion of first-degree relatives who are disordered; and (4) Reed's score, which expressed the observed number of disordered first-degree relatives in terms of the number expected given the age and sex of each relative. We compared the strength of association between each family history score and probands' disorder outcome.ResultsEach score produced significant family history associations for all disorders. The scores that took account of the number of disordered relatives within families (i.e. the observed, proportion, and Reed's scores) produced significantly stronger associations than the dichotomous score for conduct disorder, alcohol dependence and smoking. Taking account of family size (i.e. using the proportion or Reed's score) produced stronger family history associations depending on the prevalence of the disorder among family members.ConclusionsDichotomous family history scores can be improved upon by considering the number of disordered relatives in a family and the population prevalence of the disorder.


2019 ◽  
Vol 5 ◽  
pp. 237802311982933 ◽  
Author(s):  
Peter K. Enns ◽  
Youngmin Yi ◽  
Megan Comfort ◽  
Alyssa W. Goldman ◽  
Hedwig Lee ◽  
...  

What percentage of Americans have ever had a family member incarcerated? To answer this question, we designed the Family History of Incarceration Survey (FamHIS). The survey was administered in the summer of 2018 by NORC at the University of Chicago using their AmeriSpeak Panel. It was funded by FWD.us, which released a separate report using the data. The data show that 45 percent of Americans have ever had an immediate family member incarcerated. The incarceration of an immediate family member was most prevalent for blacks (63 percent) but common for whites (42 percent) and Hispanics (48 percent) as well. College graduates had a lower risk of having a family member incarcerated, but the risk for black college graduates was comparatively high. The most common form of family member incarceration was the incarceration of a sibling.


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