Palmaris longus (PL) tendon is regularly used in reconstructive surgeries as a donor tendon because it is observed as an accessory muscle and has little practical use to the human hands. It is only found in mammals. For example, the orangutan has PL but it is absent variable in the higher class of apes such as gorillas and chimpanzees. The absence of PL in humans appears to be hereditary, but the genetic transmission is unclear. The main objective of this study is to determine the prevalence of PL tendon absence in pre-clinical medical students of UMS and to compare the lack between gender and ethnic groups. By using standard Schaffer’s test, we examined the presence or absence of PL tendon among the first and second-year medical students of UMS. Four additional tests, Thompson’s test, Mishra’s test I, and II, Pushpakumar’s tests were used to determine whether PL present or not. A total of 134 volunteers were examined, and 91.8% were right-handed, and 8.2% were left-handed. The overall absence (bilateral and unilateral) of PL tendon was 23.9%, whereas unilateral absent was 17.9%, and bilateral absent was 6.0%. The high prevalence of absence of PL tendon among females 25.5% compared to males 20.0%. Chinese and Indian have a higher incidence of PL tendon absence followed by Kadazandusun and Malay. In this study, there were different figures for each ethnic group. The prevalence of absence of PL varies depending on the populations.
Introduction: Hypertension is a condition where there is persistently raised pressure in the blood vessels. In Malay-sia, higher prevalence of hypertension could be explained by lifestyle factors such as higher rates of obesity, excess dietary intake of sodium and fat and lack of physical activity. The main objective of this study was to determine the prevalence, risk factors and co-morbidities of hypertension in villagers aged 18 years and above in Kampung Tajau Laut, Kudat, Sabah. Methods: Non-probability convenience sampling method was used to select a total of 210 villagers for interview, anthropometric examinations and blood pressure measurements. House to house and face to face interview by trained year four medical students done using a pretested validated questionnaire. The ques-tionnaire contained data on socioeconomic status, tobacco use, physical activity, diet, extra-salt use, family history of hypertension, co-morbidity, anthropometric measurements and blood pressure. Results: Respondents noted to be hypertensive were 67.6%, and out of this, 61.3% were undiagnosed. There was a significant association between hypertension and family history (Chi-squared test=38.280, p=0.000), hypertension and smoking status (Chi-squared test=7.673, p= 0.006), hypertension and obesity (Chi-squared test= 8.731, p=0.003), hypertension and gender (Chi-squared test=5.126, p=0.024), hypertension and age (Chi-squared test=26.110, p=0.000) of respondents. There was no significant association between hypertension with vegetable intake, fruit intake, physical activity, marital status, ethnicity, economic status, level of education, and occupational status of respondents. Half of the known hyperten-sive respondents have comorbidities with most commonly being dyslipidaemia and diabetes mellitus. Conclusion: Hypertension was found to have a significant association with family history, smoking status, obesity, age and gender among the studied population.