The potential predictors were vessel type (research or commercial), year, month, time of day, fish length (TL), sex, position of the tow in longitude, latitude, and depth (average of tow start and end positions), and two categorical location predictors derived from tow location and prior knowledge of environmental and faunal gradients; west-east and subtropical front (STF).
All models were adjusted for potential confounding caused by location and age with categorical location and age terms in the model.
For the first categorical factor (location in the host gene), the effects of 3′UTR and 5′UTR were evaluated with CDS as the baseline.
The first step (by Model-1) evaluates the effects of the quantitative predictors (ELN and RTE) and categorical predictors (location in the host gene and TE family) on the presence or absence of TE exons in the transcripts of their host genes.
Categorical factors included location, species, age, sex, and capture season.
Pearson's Chi-square test was used to compare frequencies in the groups for the categorical variable 'Pain location'.
For cases with missing information in any of categorical variables (tumour location (1.2%), MSI (1.9%), BRAF (1.7%), KRAS (1.3%), PIK3CA (10%), TP53 (0.6%) and FASN (1.0%)), we included those cases in a majority category of a given covariate to avoid overfitting.
Each report contains categorical information about location, patient demographics, and reporter perception of severity of harm — collected in a structured report form — as well as free-text descriptions of the incident, potential contributory factors, and planned actions to prevent reoccurrence.
Following preliminary meta-regressions (not shown), a "fixed model" was fitted to examine the effect on the results of six different categorical variables (sex, location, start year of study, major study type, number of lung cancer cases and number of adjustment factors).
Each report contains categorical information about location, patient demographics and reporter perception of severity of harm collected in a structured report form as well as free-text descriptions of the incident, potential contributory factors and planned actions to prevent re-occurrence.
For predictor variables that were categorical in nature (geographic location and setting of the study, zinc salt used, co-intervention used, and adequacy of blinding procedures) we used subgroup meta-analyses.
