View Article |
Correlation of mean cycle threshold value of GeneXpert MTB/RIF and time to detection in Mycobacterium growth indicator tubes for Mycobacterium tuberculosis isolates of Kota Kinabalu, Sabah
Nor Fazirah Jamal1, Zaw Lin2, Zainal Arifin Mustafa3, Ahmad Faris Abdullah4, Naing Oo Tha5, Nor Amalina Emran6, Myo Thura Zaw7, Jiloris F. Dony8, Zarina Amin9, Kenneth Francis Rodrigues10, Vijay Kumar11, Richard Avoi12, Shaila Kabir13, Kamruddin Ahmed14, Chin Kai Ling15, Jaeyres Jani16, Cindy Chin Yeen Ling17, Tin Sabai Aung18.
Introduction: Tuberculosis (TB) is the ninth leading cause of mortality in the world while it is the most prevalent infection which is ranked abolve HIV/AIDS. In Malaysia, tuberculosis is still a public health problem. Sabah State on Malaysian Borneo had 20-30% of total TB cases of the country. In Sabah, case notification rate of almost 200 per 100,000 population was still present in the last 10 years. Hotspots are defined as TB notification rate more than 100/100.000 in a district or TB notification rate more than 100/100,000 in the squatters’ area. In this study, cycle threshold (ct) values in GeneXpertMTB/RIF (Xpert) were tried to be correlated with growth in Mycobacterim growth indicator tubes (MGIT) by measurement of time to detection (TTD). Methods: Sputum samples from six hotspots of Kota Kinabalu were studied by Xpert as well as MGIT culture after processing of sputum samples. The correlation between Mean ct value of Xpert and TTD in MGIT was analysed by using IBM SPSS Statistic 25 and the statistical test used was Pearson Correlation test. Results: The results of Xpert indicated 35 of 204 sputum samples were pos-itive whereas only one sample was rifampicin resistant. The mean ct values were very low, low and medium in all the hotspots with sputum from one hotspot showed medium ct values predominantly. The sputum from remaining hotspots showed mainly very low and low ct values. MGIT results showed no growth in five samples with two very low, two low and one medium mean ct values. Conclusion: The finding indicated that there were correlations be-tween mean ct values of Xpert and TTD in MGIT with a few exceptions.
Affiliation:
- Universiti Malaysia Sabah, Malaysia
- Universiti Malaysia Sabah, Malaysia
- Universiti Malaysia Sabah, Malaysia
- Universiti Malaysia Sabah, Malaysia
- Universiti Malaysia Sabah, Malaysia
- Universiti Malaysia Sabah, Malaysia
- Universiti Malaysia Sabah, Malaysia
- Kudat Area Health Office, Malaysia
- Universiti Malaysia Sabah, Malaysia
- Universiti Malaysia Sabah, Malaysia
- Universiti Malaysia Sabah, Malaysia
- Universiti Malaysia Sabah, Malaysia
- Universiti Malaysia Sabah, Malaysia
- Universiti Malaysia Sabah, Malaysia
- Universiti Malaysia Sabah, Malaysia
- Universiti Malaysia Sabah, Malaysia
- Universiti Malaysia Sabah, Malaysia
- Universiti Malaysia Sabah, Malaysia
|
|
Indexation |
Indexed by |
MyJurnal (2021) |
H-Index
|
3 |
Immediacy Index
|
0.000 |
Rank |
0 |
Indexed by |
Scopus 2020 |
Impact Factor
|
CiteScore (0.2) |
Rank |
Q4 (Medicine (all)) |
Additional Information |
SJR (0.144) |
|
|
|