Navigation Links
Swan Study Authors Note Results 'Not Straightforward'
Date:11/15/2009

ARLINGTON, Va., Nov. 16 /PRNewswire-USNewswire/ -- Acknowledging that their results are "not straightforward," the authors of a new study published in the International Journal of Andrology nevertheless attempt to link reduced masculine play in boys, as reported by their mothers, to maternal exposure to phthalates. The researchers, led by Dr. Shanna Swan, asked mothers who had participated in a previous, and much publicized, study of phthalate exposure to evaluate the play habits of their sons, aged 2 1/2 to 6 years old.

The mothers used a standard questionnaire - the Preschool Activities Inventory (PSAI) - but the questions and the results were adjusted by Dr. Swan and her colleagues to incorporate parental attitudes about male behavior. The authors note that such adjustments "have not been used previously" in evaluating PSAI results and "remain to be validated."

The study found an association between reduced masculine behavior and some, but not all, metabolites of dibutyl phthalate (DBP) and di-2-ethylhexyl phthalate (DEHP). Dr. Swan has previously reported sexual morphological differences in these boys, as infants, but these findings have never been replicated or verified by other researchers.

The following statement can be attributed to Steve Risotto, senior director, phthalate esters, American Chemistry Council.

"This study shows once more that Dr. Swan uses unproven methods to compile questionable data to reach conclusions that are consistent with her well-publicized opinion, which is not based on the weight of the scientific evidence surrounding the safety of phthalates. Dr. Swan's recognition that the study results are 'not straightforward' is an understatement. The researchers biased the results by using mothers from their previous study. These mothers may have had much higher levels of concern about their young boys' behavior, because Dr. Swan has repeatedly declared that phthalate exposure is reason for alarm.

"It appears that the researchers selectively excluded data, eliminating certain subjects from the analysis, in order to strengthen their conclusion. Even the phraseology of the paper is more sensationalistic than scientific."

www.americanchemistry.com/newsroom

The American Chemistry Council (ACC) represents the leading companies engaged in the business of chemistry. ACC members apply the science of chemistry to make innovative products and services that make people's lives better, healthier and safer. ACC is committed to improved environmental, health and safety performance through Responsible Care(®), common sense advocacy designed to address major public policy issues, and health and environmental research and product testing. The business of chemistry is a $689 billion enterprise and a key element of the nation's economy. It is one of the nation's largest exporters, accounting for ten cents out of every dollar in U.S. exports. Chemistry companies are among the largest investors in research and development.

SOURCE American Chemistry Council


'/>"/>
SOURCE American Chemistry Council
Copyright©2009 PR Newswire.
All rights reserved

Related medicine news :

1. Penn study finds pro-death proteins required to regulate healthy immune function
2. New study shows promise in reducing surgical risks associated with surgical bleeding
3. Study, meta-analysis examine factors associated with death from heatstroke
4. Study suggests loss of 2 types of neurons -- not just 1 -- triggers Parkinsons symptoms
5. Study says COPD testing is not measuring up
6. Preclinical study suggests organ-transplant drug may aid in lupus fight
7. Ability to cope with stress can increase good cholesterol in older white men, study finds
8. High alcohol consumption increases stroke risk, Tulane study says
9. Mailman School of Public Health study examines link between racial discrimination and substance use
10. Pitt study finds inequality in tobacco advertising
11. Stanford study highlights cost-effective method of lowering heart disease risks
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/27/2016)... ... June 27, 2016 , ... "FCPX editors can now reveal their media with ... X," said Christina Austin - CEO of Pixel Film Studios. , ProSlice Color ... users can now reveal the media of their split screens with growing colorful ...
(Date:6/27/2016)... ... June 27, 2016 , ... TopConsumerReviews.com recently awarded their ... Eyeglasses . , Millions of individuals in the United States and Canada wear eyeglasses. ... way to both correct vision and make a fashion statement. Even celebrities use glasses ...
(Date:6/26/2016)... ... , ... PawPaws brand pet supplements owned by Whole Health Supply ... health of felines. The formula is all-natural and is made from Chinese herbs that ... Cat Kidney Support Supplement Soft Chews are Astragalus Root Extract and Rehmannia Root ...
(Date:6/25/2016)... ... June 25, 2016 , ... Austin residents seeking Mohs surgery services, can ... Surgery and to Dr. Russell Peckham for medical and surgical dermatology. , Dr. Dorsey ... cancer. The selective fellowship in Mohs Micrographic Surgery completed by Dr. Dorsey was under ...
(Date:6/25/2016)... ... June 25, 2016 , ... As a lifelong Southern Californian, Dr. Omkar ... M.D from the David Geffen School of Medicine at UCLA. He trained in Internal ... complete his fellowship in hematology/oncology at the UCLA-Olive View-Cedars Sinai program where he had ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... -- MedSource announced today that it has selected Datatrial,s ... choice.  This latest decision demonstrates MedSource,s commitment to ... by offering a state-of-the-art electronic data capture (EDC) ... the EDC platform of choice in exchange for ... long been a preferred EDC platform by our ...
(Date:6/23/2016)... , June 23, 2016  In a startling report released ... failing their residents by lacking a comprehensive, proven plan to eliminate ... a definitive ranking of how states are tackling the worst drug ... only four states – Kentucky , ... Vermont . Of the 28 failing states, three – ...
(Date:6/23/2016)... 2016 Research and Markets has announced ... report to their offering. ... a favourable commercial environment for MedImmune to enter. The US ... will serve to drive considerable growth for effective anti-influenza medications. ... cap sales considerably, but development is still in its infancy. ...
Breaking Medicine Technology: