In each selected venue, a convenience sample of FSWs was recruited for questionnaire survey and cervical specimen collection.
We continued to enrol controls until all the required cases of cerebral malaria were recruited A questionnaire was used to collect information such as the socioeconomic, demographic characteristics, clinical history, and physical examination as well as laboratory findings.
For phase 1 of the study, 30 subjects who had high occupational exposure to Ni for at least 1 year at a Ni refinery in Jinchang, China, having worked in the flash smelting workshop where sulfidic Ni ores are processed, were recruited through questionnaire interview.
In Study 1, 484 UK Royal Marine recruits completed questionnaires about their trainers' leadership behaviors and their own attitudes towards training.
Although a total 400 participants were recruited, 355 questionnaires were complete and used in the validity sample.
In addition to recruiting participants, administering questionnaires and delivering the intervention, the Indigenous research officers play an invaluable role in providing ongoing cultural advice for investigators.
We developed and pilot-tested a self-administered questionnaire where recruiting physicians were asked to express their agreement with statements about recruitment barriers on a Likert-type scale from 1 (full agreement with statement = very substantial recruitment barrier) to 7 (no agreement with statement = no recruitment barrier).
Recruiting investigators completed a questionnaire with the patients' clinical data, including family history of early cardiovascular disease, cardiovascular risk factors (such as smoking, diabetes, hypertension or dyslipidemia) and current medications.
In their study of abuse prevalence among patients visiting gynaecology clinics, Wijma et al. noted response rates as low as 67percentt among recruiting clinics that mailed questionnaires to eligible participants [ 4]. Campbell et al., in their attempt to assess the physical consequences of IPV with a questionnaire that was mailed, reported a response rate of only 12percentt [ 17].
Women with BD were recruited to the questionnaire survey from the waiting room at the Copenhagen Affective Disorder Clinic, Psychiatric Centre Copenhagen.
