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:1/21/2017)... ... ... Salveo for life, a company that distributes an effervescent lime-flavored drink called ... part of its presence to expand its market reach. , Using a formula developed ... nasty toxins as a result of drinking alcohol, eliminating those toxins quickly, whilst supporting ...
(Date:1/21/2017)... ... January 21, 2017 , ... ... Family Dermatology has recently joined their multi-specialty medical group. The dermatology practice ... cosmetic services. , “We’re excited to add this excellent dermatology practice to our ...
(Date:1/20/2017)... Hagerstown, MD (PRWEB) , ... January 20, 2017 , ... ... people to donate items they no longer use or need, from clothes to couches ... up any unwanted items and take them to the nearest Goodwill donation center through ...
(Date:1/20/2017)... ... ... Lice Troopers, the lice removal company based in South Florida, has seen a ... , “It happens every year around this time,” says owner, Arie Harel. “Many ... the head-to-head gateway that lice need to spread.” , As children return to classrooms ...
(Date:1/20/2017)... ... January 20, 2017 , ... Vitamin Well has launched two ... drinks have been produced in collaboration with Zlatan Ibrahimovic and have been developed ... After a successful launch in Sweden last year, the next generation sports drinks ...
Breaking Medicine News(10 mins):
(Date:1/21/2017)... , Jan. 20, 2017  Faruqi & Faruqi, LLP, ... Inc. ("KemPharm" or the "Company") (NASDAQ: KMPH ) ... Company and certain officers and directors and underwriters of the ... seek the role of lead plaintiff. The lawsuit ... District Court for Johnson County on ...
(Date:1/20/2017)... Research and Markets has announced the addition of the ... to their offering. ... This research service on the global pharmaceutical stability testing market ... of the key participants in the market. The ... 2020. The market is expected to grow at a CAGR of ...
(Date:1/19/2017)... 2017 Germany Cataract Surgery ... new report, "Germany Cataract Surgery Devices Market Outlook to ... Surgery Devices market. The report provides value, in millions ... (USD) within market segements - Phacoemulsification Equipment and Ophthalmic ... shares and distribution shares data for each of these ...
Breaking Medicine Technology: