To do so, we grouped patients based on established outcomes and surveyed for differences in BCAR3 expression between groups.
In order to justify pooling of encounter rates per transect over surveys for statistical analyses, we tested specific encounter rates of replicate surveys for differences (F-tests in RBD with transects as blocks).
We corrected the spatial data from the aerial surveys for differences in sampling intensity and area sampled between surveys using equations described in Grech and Marsh (2007) [21].
In addition to a survey for differences in enhancer activity between zebrafish and mouse, we have observed that the genes that present changes in expression patterns are associated to enhancers that drive more divergent reporter expression between zebrafish and mouse.
For the survey, baseline differences will be tested using chi statistics for the categorical and dichotomous variables and t-tests for the continuous variables, where appropriate.
In addition to testing racial disparities in short sleep duration for each survey period, differences in linear trends in short sleep from 2004 to 2011 between Asians and Whites within each industry category were formally tested using multivariable-adjusted linear regression models where survey year was treated as a dummy variable.
The unit cost of a completed survey was €4.48 in Survey 1, €6.65 in Survey 2 and €15.65 in Survey 3. The major reason for differences in survey costs were relatively high interviewer salaries in Survey 3; costs not off-set by the lower per unit phone charges availed of by the institution.
Overall, our results demonstrate that online recruitment and surveying are valuable tools for studying large populations cost-effectively; however, care must be taken to account for underlying differences between participants surveyed online and those surveyed in person.
Logistic regression models were computed to assess survey mode differences for 13 self-reported items related to cancer screenings, adjusting for age, education, income, race, marital status, partner gender, and recruitment source.
Data analysis was performed with the Statistical Package for Social Sciences (SPSS) version 21 (IBM Corporation, Somers, NY, USA) using descriptive statistics and chi squared and z tests to investigate group- and survey-specific differences for socio-demographic variables as well as the respondents' attitudes towards the importance of confidentiality in adolescent sexual healthcare.
