Statistics of Mental Illnesses/Statistik berkenaan dengan Penyakit Kejiwaan

Various researches on mental illnesses conclude the following few points:
* 25% of population may have mental illnesses, and most of them are not diagnosed
* Mental illnesses affect and are affected by other chronic illnesses, such as hypertension and coronary heart disease.
* Mentally ill group of people have higher morbidity and mortality rates than non mentally ill group of people
* The higher the severity of a depressive condition, the higher morbidity and mortality rates of the depressed patients
* Among depressed elderly, men tend to have higher mortality rates than women
* However, studies show that mild depression does not affect or does not significantly affect morbidity and/or mortality rates