There are a few published research that evaluate the knowledge and attitude of the society toward AD in Saudi Arabia. This community-based study was designed to investigate the knowledge, awareness, and attitude of Madinah city residents toward AD, which include basic levels of public knowledge on AD definition, risk factors, symptoms, and treatments, source of information. In general, the majority of the participants have heard about AD (98.2%) which is higher in comparison to a study done in Uganda by Phillip Musoke et al., 78% of the participants(9). Furthermore, in our study, 95.7% were able to identify one correct manifestation related to AD.
Knowledge
In the current study, identifying hypertension, high cholesterol level as risk factors for AD was only recognized by (24.3%, 13.6%) of the participants respectively. This was quite similar to a study done in Aseer region (10), were 15.7%, 14.9% for hypertension and Hypercholesterolemia, respectively. In different study done in Ohio by Hicks and Miller et al., (11)reported that 25% of the respondents were aware that hypertension and high cholesterol level increase the individual’s risk of developing dementia (11). (12)
The current study also revealed that more than half of the participants (64.7%) know that genetics could be a risk factor for developing AD. This result was contradicted by the work of Adel et al., (10) who found that only (38%) knew that genetics increase the risk of AD. These differences could be explained by that, variety of information sources for individual is more in the present time, for instance, social media help to distribute the information faster and more efficient.
Knowing of the age attribution as a risk factor for dementia seems good in most studies reviewed (13) and, in our population, it reached 90%. Also, in our study we demonstrate that knowledge towards genetic predisposition for AD as a risk factor was significantly higher than a similar study was done in Aseer region(10).
There is a significant inverse association between overall knowledge and the age group, as younger participants have higher knowledge compared to older ones. In our study, 58% of the respondents had great or fair (the mean level of knowledge was 7 ± 2 out of 12 possible points.) knowledge of AD. This is consistent with the results of knowledge among public hospitals and health clinics pharmacists in Malaysia(14). Furthermore, participants' awareness of AD symptoms and their familiarity with risk factors and other aspects of the disease were both good (13).
Attitude
When our population were asked about their attitudes towards AD, there was a high agreement that persons with dementia are unable to make decisions about their health or financial matters (72.4%) which was similar to a study done among primary health care attenders in Lebanon (15). Also, it was found that 23.5% of our sample agreed on using traditional medicine if symptoms such as memory loss and dementia appear in a family member which is quite low but not as low as a study done in Uganda(16)(3.2%) (15). Around 79% of the respondents in the current study was fine with going to a public place with persons with AD, in contrast to a nearby study done in Jeddah city which reported 54% (17). More than half of the participants 70.8% of this study think that AD led to psychological and societal burden, which was more common than a study done in Jeddah (45.8%).
Moreover, our study revealed that (69.1%) said that they would not hide the reality of Alzheimer’s disease in a family member which was similar (72%) to a study done in Jeddah (17).
The majority of this study participants (83.4%) believed that people with AD should be watched constantly and more than 80% of the participants think that persons with AD should not be admitted to the nursing home which is more than what was reported by H. Algahtani et al., (17) (56.2%) which could indicate societal differences between Madinah and Jeddah residents, respectively.
More than half of the participants received their information about AD from physicians which is very high in comparison to a study done in Jeddah by H. Algahtani et al (17)(6.3%) but was similar to a study done in Makkah 68% by N. Alorfi et al.(18), and these findings could indicate the strong rule of physicians in advocating of AD in our region and society.
Finally, only 25.6% of our sample knew about Saudi Alzheimer's Disease Association.