Of 2000 households originally approached for this study, 218
(10.9%) refused participation. A total of 1782 households participated
in the study. Mean age of participants was 31.74 ± 12.7 years
and ranged from 20 to 68 years. Sixty-three percent of the
participants were female. Approximately 65% (n = 1163) of the
participants were married. Ninety-six (5.4%) participants did not