Facing unknown risks while travelling abroad, we will buy insurance in advance to prepare; in the journey of life, we should also be aware of the risks of developing NPC and nip it in the bud.
The early NPC detection test enables patients with non-specific symptoms to be identified at early-stage for timely treatment, resulting in increasing survival rate, reducing the side effects of treatments, and minimising the impact on our lives. By well-preparing the “insurance” for your health – regularly taking early NPC detection test, NPC would no longer seem frightening, allowing us to focus on enjoying a quality life.
How can we define a reliable and effective NPC detection test?
High sensitivity, low false positive rate is critical
Sensitivity refers to the proportion of patients with NPC being correctly identified by a positive detection result. Therefore, the higher the test’s sensitivity, the lower the chance of missing the diseased ones in the screened population; which means the test is more reliable.
On the contrary, if the sensitivity of a detection test is not high enough, it might miss the detection of true NPC patients. Those missed NPC patients may assume themselves as disease-free, resulting in a delay in diagnosis and treatment at the best timing.
False positive means that a person who does not have NPC gets a positive detection test result. The higher the test’s false-positive rate, the more non-NPC individuals are being reported as "diseased", which exposes the non-diseased ones to unnecessary mental burden and additional medical procedures.
All in all, we should choose an early detection test that has a high sensitivity and a low false-positive rate. These criteria reflect that the test could effectively detect true patients so that patients would not be missed and result in a delay in their treatments; while the screened population are also less likely to be reported as "diseased" wrongly so that they would not suffer unnecessary worries.