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:4/30/2016)... ... ... all of us, but there are things we can do to improve the odds of staying ... and more that there are simple, yet important steps that can be taken to maintain good ... recommends for her patients include;, , exercise , healthy ...
(Date:4/29/2016)... ... 2016 , ... Since launching its annual volunteer campaign on ... footwear industry, has broken all previous participation records in its first two weeks ... during the months of April and May, the 2016 Footwear Cares initiative is ...
(Date:4/29/2016)... ... 29, 2016 , ... The American workforce is on everyone’s ... Most importantly, employees are the single most important asset in creating value and ... , Just under half of American workers are emotionally checked out with low ...
(Date:4/29/2016)... ... April 29, 2016 , ... ... infants born with severe congenital diaphragmatic hernia have better survival rates if surgery ... diaphragmatic hernia (CDH)—a condition where the diaphragm fails to form completely, letting abdominal ...
(Date:4/29/2016)... ... April 29, 2016 , ... The Gluten-Free Certification Program ... to announce the launch of the GFCP Scoop in response to ... purpose of the GFCP Scoop site is to keep the gluten-free ...
Breaking Medicine News(10 mins):
(Date:4/27/2016)... 2016   ... sur le trimestre, soutenu par une croissance de ... Croissance de +16% des ventes aux hôpitaux et ... Technologies (Euronext : MKEA, FR0010609263 ; OTCQX : MKEAY), inventeur de ... son chiffre d,affaires pour le premier trimestre clos ...
(Date:4/27/2016)... , April 27, 2016 ... titled, "Skincare Devices Market - Global Industry Analysis, Size, ... to the report, the global skincare devices market was ... anticipated to expand at a CAGR of 10.1% from ... 2023. Browse the full Skincare Devices Market (Treatment ...
(Date:4/27/2016)... Kan. , April 27, 2016  Bayer ... , a senior from the University of Florida ... of the Bayer Excellence in Communication Award (BECA). ... schools, which were awarded a total of $70,000 ... the last four years, Bayer has provided a ...
Breaking Medicine Technology: