Geographic differences in the attitudes, knowledge and infection control practices of Ontario dentists

Geographic differences in the HIV related attitudes, knowledge and behaviours of 5,997 dentists in Ontario were investigated using mailed questionnaires (response rate 70%). Proportionately more respondents from larger population centres reported that they knowingly treated HIV-infected patients (p < 0.00001), they were unwilling to treat HIV-infected patients (p < 0.05), they had an exaggerated perception of the risk of HIV infection after a needlestick injury (p < 0.01), they were concerned about personal risk (p < 0.01) and staff fears (p < 0.05) related to HIV/AIDS, and that patients with HIV or AIDS should be treated in hospitals/specialized practices (p < 0.001). Multiple logistic regression analysis controlling for age, sex, and specialty, showed that respondents who practised in smaller population centres were significantly more willing to treat HIV-infected patients ( < 10,000, odds ratio = 1.6; 10,000-49,999, odds ratio = 1.3). Significantly fewer respondents in the Central West, and Central East Health Planning Region, where AIDS is most prevalent, reported that they were willing to treat HIV patients.