HOME >> MEDICINE >> NEWS
Twins' lower IQ levels than single-born children not down to social factors

Social and economic circumstances do not explain why twins have significantly lower IQ in childhood than single-born children, according to a study in this week's BMJ.

Researchers studied 9,832 single-born children and 236 twins born in Aberdeen, Scotland between 1950 and 1956, using a previous child development survey as a base. They also gathered further information on mother's age at delivery, birth weight, at what stage of the child's gestation they were born, their father's occupational social class, and information on other siblings.

They found that at age seven, the average IQ score for twins was 5.3 points lower than that for single-born children of the same family, and 6.0 points lower at age nine.

The study also showed that taking into account factors such as the child's sex, mother's age, and number of older siblings made little difference to the IQ gap.

Despite advances in recent years in obstetric practice and neonatal care, the authors argue that the likely explanation is because some twins have a shorter length of time in the womb than other children and are prone to impaired fetal growth.


'"/>

Contact: Teresa Hagan
thagan@bma.org.uk
44-20-7383-6174
BMJ-British Medical Journal
18-Nov-2005


Page: 1

Related medicine news :

1. Childhood sun exposure may lower risk of MS
2. 6 out of 10 doctors arent frustrated that patients cant lower cholesterol
3. College students who pull all-nighters and get no sleep more likely to have a lower GPA
4. Exercise lowers insulin in breast cancer survivors
5. Folic acid supplementation lowers stroke risk
6. Intake of vitamin D and calcium associated with lower risk of breast cancer before menopause
7. Coffee consumption may lower blood uric acid levels -- the precursor of gout
8. Moderate drinking lowers womens risk of heart attack
9. Erectile dysfunction and lower urinary tract symptoms
10. Statin use linked with decreased prostate cancer mortality rates, lower PSA levels
11. Grain fiber and magnesium intake associated with lower risk for diabetes

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Twins lower levels than single born children not down social factors

(Date:7/31/2015)... ... 2015 , ... When the weather turned hot and warm-season turfgrasses, such as ... called Leisure Time(TM) zoysia . It's nicknamed LTZ(TM) for short. Incidentally, both names ... new type of sod, Super-Sod is giving away red Adirondack chairs with the Leisure ...
(Date:7/31/2015)... ... 31, 2015 , ... Precision Aesthetics is New York’s only Thermage skin tightening ... first provider of Exilis non-surgical fat reduction in New York. Due to its ... large International clientele. Many patients travel to New York to get their non-surgical ...
(Date:7/31/2015)... ... July 31, 2015 , ... Sculpted Contours Luxury Medical Aesthetics announces the arrival ... Zeltiq Aesthetics released this new applicator in the United States as an upgrade to ... thighs. The original applicator required a 2 hour treatment time. The new ...
(Date:7/31/2015)... (PRWEB) , ... July 31, 2015 , ... Coco Libre ... athletes, judges, media, and VIPs at the 2015 Vans US Open of Surfing, July ... water that can claim “no added sugar” on the market, is a natural choice ...
(Date:7/31/2015)... CA (PRWEB) , ... July 31, 2015 , ... According ... and cosmetic experts gathered to see if they could reach a consensus on the ... breast augmentation and facelifts. Overall, the group reached 90 percent consensus on a series ...
Breaking Medicine News(10 mins):Health News:Super-Sod Introduces Leisure Time(TM) Zoysia Grass with an Adirondack Chair Promotion 2Health News:Cooler Coolsculpting in Atlanta: Treatments Now Twice As Fast 2Health News:Cooler Coolsculpting in Atlanta: Treatments Now Twice As Fast 3Health News:Coco Libre Brings Eco-conscious Hydration to Vans US Open of Surfing 2Health News:Article on Plastic Surgery Consensus Highlights the Duties of Veteran Plastic Surgeons, says Beverly Hills Physicians 2Health News:Article on Plastic Surgery Consensus Highlights the Duties of Veteran Plastic Surgeons, says Beverly Hills Physicians 3
(Date:7/30/2015)...  Unichem Pharmaceuticals ( USA ), Inc. ... 25 mg 1000-count bottle to the consumer level. This ... to the identification of a Clopidogrel tablet found in ... risk associated with mistakenly taking a Clopidogrel tablet instead ... experiencing Clopidogrel,s side effects which include bleeding and/or bruising. ...
(Date:7/30/2015)... 30, 2015  Amgen (NASDAQ: AMGN ) today announced ... director of Warburg Pincus LLC, to the Amgen Board of ... Fred Hassan and the deep, global experience he brings ... Robert A. Bradway , chairman and chief executive officer of Amgen. ... serve Amgen well." Mr. Hassan has been Partner ...
(Date:7/30/2015)... -- Growth of the U.S. nonprescription market is primarily driven ... to the OTC market. Due to an increasingly favorable ... activity over the next five years with several all ... entering the market into existing categories. If ... those with low to moderate likelihood), the market is ...
Breaking Medicine Technology:Unichem Pharmaceuticals (USA), Inc. Issues a Voluntary Nationwide Recall of Hydrochlorothiazide Tablets Due to the Potential Presence of Foreign Tablets 2Amgen Announces Appointment Of Fred Hassan To Board Of Directors 2Amgen Announces Appointment Of Fred Hassan To Board Of Directors 3Rx-to-OTC Switches -- Game Changers for the U.S. OTC Drugs Market through 2019, Sees Kline 2Rx-to-OTC Switches -- Game Changers for the U.S. OTC Drugs Market through 2019, Sees Kline 3
Cached News: