Study questionnaire:
A structured questionnaire was used to collect the study data. The
questionnaire was adapted from several instruments used elsewhere
considering the aim of the current study29-34. Face
and content validity of the questionnaire was achieved through an expert
panel of physicians, pharmacists, and biostatisticians. The
questionnaire was then piloted in a sample of 20 doctors and 20 students
and necessary edits were made. Those were not included in the final
results.
The questionnaire consisted of five main sections with a total of 35
questions; sociodemographic characteristics, PG knowledge, attitudes,
future expectations, and barriers to practice. Sociodempgraphics
included questions regarding age, gender, level of seniority, and
primary work setting of the respondents. PG knowledge was assessed using
ten questions covering general information about PG, such as definition,
availability in Jordan, and inter-individual gene variation. Attitudes
towards PG were assessed using eight questions regarding the proposed
clinical and therapeutic advantages of PG testing. Future expectations
and practice questions (n=4) identified drugs with current and/or
potential PG application. Nine barriers to practicing PG were utilized
to identify the top perceived barriers to practice PG.