Sentence examples similar to study using mailed questionnaires from inspiring English sources

In epidemiological studies using mailed questionnaires, it is important to determine whether differences exist between participants and non-responders.

However, fish consumption was a risk factor for gastric cancer in studies using mailed questionnaires (summary OR = 1.26, 95% CI = 1.03-1.55) (Table 2).

The results of the 2 studies using mailed questionnaires indicated that fish consumption increased gastric cancer risk, although underlying factors, such as response rate to mailed questionnaires, may have affected these results.

We therefore decided to conduct a survey using mailed questionnaires.

Regarding exposure assessment, only two studies used mailed questionnaires to ascertain NSAID exposure.

In addition, 2 studies used mailed questionnaires to assess dietary patterns, while the other 15 used interview assessments.

White and collaborators [ 7] performed a study in Victoria, Australia in 2004 with a similar design using mailed questionnaires.

Both studies assessed self-reported home and workplace ETS exposure in Canadian populations using mailed questionnaires.

Using mailed questionnaires, the low-fat food consumption frequency was recorded and stratified in number of portions a day.

We assessed participants using mailed questionnaires, randomly ordering instruments within questionnaires to eliminate order effects.

Additional follow-up assessments were done at 12 and 26 weeks using mailed questionnaires.