Twelve (48 %) studies examined data from private health plans in the US [ 22– 33].
The researchers examined data from cancer registries in Los Angeles, Seattle and Detroit.
Adrion's team examined data from three major insurers covering 50 million people, including 7.3 million hospitalizations.
Researchers examined data from a large birth cohort to identify the IQ of 1,881 individuals at age eight.
The WHO chief, Dr Margaret Chan, yesterday examined data from eight countries with large numbers of swine flu cases.
He has examined data from languages as varied as Tongan, Lakota, Japanese, Turkish, and Korean.
The report, commissioned by the Centers for Disease Control and Prevention, examined data from 11 studies from communities in Canada, Italy, Scotland and the United States.
Cassels examined data from a longitudinal study carried out by the Centre for Family Research at Cambridge University, which tracked children from the age of two.
Lee and Solon examined data from the Panel Study of Income Dynamics, a long-running survey that tracks income and other characteristics of about five thousand families nationwide.
The study, funded by the Wellcome Trust, examined data from 3,594 female twins.
Researchers examined data from 36 studies including more than 20,000 people who underwent both cognitive evaluations and hearing tests.
