Questionnaire Implementation
The questionnaire was administered to 342 active
divers in six communities by the health care
workers. Divers were interviewed by health care
workers on a one-to-one basis in the Thai language
and the responses were recorded on the
questionnaire form. The process was actively
monitored to insure that the instructions provided
were followed. Responses were analysed using
Epi info software (U.S. Department of Health,
1996) and the Generalised Linear Interactive
Modelling Package