Navigation Links
Research shows negative effects of half-siblings
Date:8/10/2013

NEW YORK CITY Adolescents who have half-siblings with a different father are more likely to have used drugs and had sex by age 15 than those who have only full siblings. That's according to new research from Karen Benjamin Guzzo, an assistant professor of sociology at Bowling Green State University, and Cassandra Dorius, an assistant professor of human development and family studies at Iowa State University.

Using data from the National Longitudinal Study of Youth, they examined a phenomenon known as "multi-partnered fertility" or MPF. This happens when parents who are not romantically involved with each other form new relationships and have another child with a new partner.

"It's not new behavior, but it's happening more often as more people are having children outside of marriage," said Guzzo.

According to Guzzo, this is one of the first studies to examine the effect of parental MPF on children over the long-term, and the only study that takes into account background factors (such as the mother's level of education and household poverty) and the number of changes in family structure the adolescent experienced.

The researchers looked at the connections between this re-partnering and additional childbearing on adolescent drug use and early sex. They focused on mothers and first-born children who lived with their mother most of their lives.

"For children, MPF means having a half-sibling, but it also means, for first-born children, that they usually experienced their biological parents splitting up if they were together at all, lived in a single mother household for some time, experienced their mother finding a new partner at least once and perhaps lived with a stepfather, and finally experienced their mother having a baby with a new partner," Guzzo explained.

Researchers looked at the mother's educational background, her own family structure growing up, and whether the child experienced bouts of poverty. They also examined family factors whether the father lived with them at birth, how many family transitions the adolescents experienced, and whether the mother ever married or cohabited, with the child's father or another partner.

"We find that first-born adolescents with half-siblings with the same mother but a different father do have less favorable outcomes compared to their peers with only full siblings, even after accounting for the mother's background characteristics, socioeconomic factors the child experienced growing up, and family instability and structure," Guzzo said.

"Adolescents with a half-sibling with a different father are about 65 percent more likely to have used marijuana, uppers, inhalants, cocaine, crack, hallucinogens, sedatives, or other drugs by the time of their 15th birthday than those who have only full siblings. They are also about 2.5 times more likely to have had sex by their 15th birthday than their peers with only full siblings."

Guzzo said it's not clear yet what drives these outcomes, but that in the future she and Dorius plan to explore differences in maternal behaviors, father and stepfather involvement, and adolescent perceptions of their relationship with their mother to see if these factors explain the association between having half-siblings with a different father and risky adolescent behavior.

"We are also planning to look at whether this association holds for children other than the first-born, who tend to experience the most instability," Guzzo said.


'/>"/>

Contact: Daniel Fowler
pubinfo@asanet.org
202-527-7885
American Sociological Association
Source:Eurekalert

Related medicine news :

1. UCLA Brain Injury Research Center gets NCAA funding for research on sports concussions
2. NIH awards $20 million over 5 years to train next generation of global health researchers
3. Researchers develop a new cell and animal model of inflammatory breast cancer
4. Researchers uncover a viable way for colorectal cancer patients to overcome drug resistance
5. Sexually abused boys at risk for more unsafe sex: UBC research
6. Researchers Find Gene Mutations That May Be a Key to Autism
7. LSUHSC research finds HPV-related head & neck cancers rising, highest in middle-aged white men
8. Researchers find evidence of banned antibiotics in poultry products
9. Presidential keynote address and new research highlights from the American Society of Pediatric Otolaryngology meeting
10. Scientific session and new research highlights
11. NJ stroke researchers report advances in spatial neglect research at AAN Conference
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/12/2017)... MD (PRWEB) , ... October 12, 2017 , ... The ... of Excellence to Carol Friedman, PhD, FACMI, during the Opening Session of AMIA’s Annual ... – 8. , In honor of Morris F. Collen, a pioneer in the field ...
(Date:10/12/2017)... ... 2017 , ... Information about the technology: , Otomagnetics has ... prevention of a major side effect of chemotherapy in children. Cisplatin and carboplatin ... cisplatin, hearing loss is FDA listed on-label as a dose limiting toxicity. Hearing ...
(Date:10/12/2017)... ... 12, 2017 , ... HMP , a leader in healthcare events and ... Eddie Digital Award for ‘Best B-to-B Healthcare Website.’ Winners were announced during the Eddie ... annual award competition recognizes editorial and design excellence across a range of sectors. This ...
(Date:10/12/2017)... ... 2017 , ... On Saturday, October 21, the Health & Wellness Center at ... raise money for the American Heart Association Heart Walk. Teams of up to 10 ... to keep their treadmills moving for 5 hours. Treadmills will start at 7:00 p.m. ...
(Date:10/12/2017)... ... , ... Health Literacy Innovations (HLI), creator of the Health ... Cancer Patient Education Network (CPEN), an independent professional organization that shares best practices ... , As CPEN’s strategic partner, HLI will help support CPEN members by ...
Breaking Medicine News(10 mins):
(Date:9/28/2017)... CHICAGO , Sept. 28, 2017 Hill-Rom ... quarter 2017 earnings conference call and webcast on Friday, ... 8:00 a.m. (EDT) and ending at approximately 8:30 a.m. ... to discussing the company,s 2017 financial performance and guidance ... growth opportunities, initiatives to enhance operational performance, and long-range ...
(Date:9/25/2017)... 2017   Montrium , an industry leader ... the IQPC Trial Master Files & Inspection Readiness ... EastHORN Clinical Services has selected eTMF Connect ... management. EastHORN, a leading European contract research organization ... transparency to enable greater collaboration with sponsors, improve ...
(Date:9/22/2017)... 2017 AVACEN Medical (AVACEN) announced that its ... helping those with the widespread pain associated with fibromyalgia ... in Essex, England commented, "I ... experiencing no sleep at all, tremendous pain, with every ... recommend [the AVACEN 100] enough, how this has and ...
Breaking Medicine Technology: