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The remaining questionnaire, background information and eye tracking data were analysed using Mann–Whitney U-tests for group comparisons and χ2-tests/Fisher's exact tests to analyse categorical data.
From the first questionnaire, background data (age, civil status, level of education, country of birth, use of tobacco, Body Mass Index and parity) was collected.
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We conduct online accredited investor questionnaires, background checks and reviews prior to a transaction, and contact each potential buyer to understand his or her investment intent.
After written consent was obtained, the participants completed self-administered questionnaires (background, demographics and a set of pre-assessment measures).
A short questionnaire determining background details was administered before a semi-structured taped interview.
After the valuation tasks, participants filled out a questionnaire on background characteristics and their obstetric history.
At baseline the participants completed a questionnaire on background information (Table 1).
They explained the study and filled in a questionnaire on background factors and vaccination status.
If they are interested they receive first a questionnaire on background characteristics.
Added to the questionnaire were background variables for age, sex and year.
All subjects underwent oral clinical examination and answered a questionnaire assessing background variables such as socioeconomic status and smoking.
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