• Saadi Ahmad Kamaruddin Centre of Testing, Measurement and Appraisal (CeTMA), Universiti Utara Malaysia, 06010 Sintok, Kedah, Malaysia
  • Abdul Malek Yaakob Institute of Strategic Industrial Decision Modelling (ISIDM), School of Quantitative Sciences, Universiti Utara Malaysia, Persiaran Perdana, (UUM), 06010 Sintok, Kedah, Malaysia.
  • Nor Anis Nadhirah Md Nasir School of Quantitative Sciences, Department of Mathematics and Statistics, Universiti Utara Malaysia, Persiaran Perdana, 06010 Sintok, Kedah, Malaysia.
  • Siti Fatimah Abdul Rahman Faculty of Mathematical and Computer Sciences, Universiti Teknologi MARA, Cawangan Perlis, 02600 Arau, Perlis, Malaysia.


Consumption, therapeutic essential oils, COVID-19, adults


The COVID-19 pandemic has emphasized the significance of utilizing essential oils (EO) as one of the holistic ways of supporting and enhancing health. As a consequence of growing knowledge of connected health concerns, people all over the world are looking for natural ways to avoid different ailments. It has been proven that excellent health and psychological awareness increase the human body's immune response, therefore boosting disease resistance. Essential oils are derived in a number of ways from valued plants containing active chemicals with medicinal qualities. In Malaysia, many have used EO in their daily lives. This paper identifies the hierarchy of importance among factors which contribute towards the usage frequency of essential oils in Malaysia using an artificial neural network. Two-layer neural network (NN) models have been applied, which are multilayer perceptron (MLP) and radial basis function (RBF). Based on the analysis done, RBF-NN performed the best with SSE=4.436 and RE=0.548. It can be concluded that, based on sensitivity analysis, the top five factors toward usage frequency are consumption, age, external use, clinic visit, and occasion, with normalized importance of 100%, 90.8%, 89.3%, 68.2%, and 42.2% respectively.


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