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:8/22/2017)... , ... August 22, 2017 , ... “Wilderness Voices”: a ... world travel. “Wilderness Voices” is the creation of published author, Martha McKown, an ... McKown was inspired as a very young child when her older sisters studied High ...
(Date:8/22/2017)... ... August 22, 2017 , ... “Glimpses Of Light”: is a unique ... Of Light” is the creation of published author, J.M. Shepherd, a writer, teacher, traveler, ... to life’s perplexing mysteries. , Shepherd shares, “Love is one of the least understood ...
(Date:8/22/2017)... ... 22, 2017 , ... “Call Of Spiritual Duty”: a revelation in an era ... C.S. Lizarde. Growing up on the streets of North Visalia, California, Carlos Lizarde ... apply the Biblical keys to his life, he noticed immediately that opportunities and blessings ...
(Date:8/21/2017)... Ca (PRWEB) , ... August 22, 2017 , ... ... industries, but not without risk to health and safety. By learning and implementing ... be eliminated. , In this webinar, attendees will gain a better understanding ...
(Date:8/21/2017)... Aliso Viejo, CA (PRWEB) , ... August 21, 2017 , ... ... Pixel Film Studios. Editors can quickly and easily add washed color grades to ... an image. The LUT changes every pixel’s color to the corresponding color indicated by ...
Breaking Medicine News(10 mins):
(Date:8/4/2017)... Md. , Aug. 4, 2017 The ... or shortly after a physician/patient consult has long been ... and was a notable focus of the largest meeting ... is according to healthcare market research firm Kalorama Information. ... care testing (POCT) offerings or related supplies and software ...
(Date:8/2/2017)... -- Life Flight Network and PeaceHealth Oregon Network announced they renewed ... operational efficiency for patients at hospitals in Eugene ... Grove , and Florence, Oregon , ... Network work collaboratively to move patients who require the highest ... sensitive emergency exists. ...
(Date:7/31/2017)... 7D Surgical, developer of ground breaking surgical navigation ... Surgical System to support its strategic sales plan in ... and Virginia.  7D Surgical has entered into an exclusive sales ... medical facilities within those markets. ... Spartan Medical Purchases ...
Breaking Medicine Technology: