She says one possibility is a decrease in the number of school nurses during the period they studied.

VOA: special.2009.08.06

He says a decrease in the use of salt and unhealthful fats probably also helped.

VOA: special.2011.02.15

And studies have found that it helps protect against a decrease in mental ability.

VOA: special.2009.03.24

State officials expect a decrease this year of another two percent.

VOA: special.2009.03.02

That was a decrease of ten percent from the year before.

VOA: special.2009.03.02

That was a decrease of 41%.

VOA: special.2009.01.07

"Women who had their ovaries removed had a decrease in the risk of breast cancer, a decrease in the risk of ovarian cancer and,in addition,they were less likely to die of breast cancer, less likely to die of ovarian cancer and also had an improvement in their overall survival."

VOA: special.2010.09.22

The expanding U.S.advisory role coincides with a decrease in combat operations in the months before U.S.troops are due to withdraw by the end of December 2011.

VOA: standard.2009.07.28

Reports indicate there's a decrease in the risk of in-hospital deaths.

VOA: standard.2010.03.07

In other new research, a study has found that circumcision does not decrease the risk that H.I.V.positive men will infect women.

VOA: special.2009.07.29

A city report says economic activity last year totaled almost three billion dollars, a four percent decrease from two thousand seven.

VOA: special.2009.03.30

The study identified factors that seem to increase or decrease the risk that a child will be a bully.

VOA: special.2010.05.06

Last month the World Bank predicted a 2% decrease this year - the largest drop since the 1940s.

VOA: special.2009.01.16

It also found that every additional friend can decrease loneliness by about five percent, or two and a half fewer lonely days.

VOA: special.2009.12.22

The researchers found a major decrease in unwanted chemicals by preparing the meat with spice and herb marinades.

VOA: special.2009.05.19

But every additional friend can decrease loneliness by about five percent, or two and a half days.

VOA: special.2010.01.06

The electronics industry is hoping a new crop of products will help it recover from an eight percent decrease in sales last year.

VOA: special.2010.01.26

They found a major decrease in unwanted chemicals by preparing the meat with spice and herb marinades.

VOA: special.2010.06.01

It says there has been a major decrease in AIDS deaths in many countries as a result.

VOA: special.2010.03.10

The discovery could help farmers meet a growing demand for food as water supplies decrease.

VOA: special.2010.01.26

The Millennium Development Goals for two thousand fifteen call for a fifty percent decrease in the number of people without safe drinking water and basic sanitation.

VOA: special.2010.04.05

It can decrease intelligence, create behavior problems and slow a child's growth.

VOA: special.2009.08.31

But the report noted a nine percent decrease for intensive English-language programs.

VOA: special.2010.11.18

No states showed a rate decrease.

VOA: special.2009.07.21