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. 2022 Dec;23(12):4275–4284. doi: 10.31557/APJCP.2022.23.12.4275

Table 3.

Knowledge of Oncologists Toward Chemotherapy Resistance

Items Strongly
Disagree
Disagree Uncertain Agree Strongly
Agree
1. I know what chemotherapy resistance is 0 (0) 1 (1.6) 9 (14.1) 40 (62.5) 14 (21.8)
2. I am aware that chemotherapy resistance can exist among cancer patients. 0 (0) 2 (3.2) 5 (7.8) 43 (67.2) 14 (21.8)
3. I am aware that chemotherapy resistance can happen at any stage of cancer disease 0 (0) 2 (3.2) 14 (21.8) 35 (54.7) 13 (20.3)
4. I have sufficient knowledge about how to use chemotherapy appropriately for my current practice 0 (0) 10 (15.7) 14 (21.8) 25 (39.1) 15 (23.4)
5. I am aware of the activities and lifestyle habits that should be avoided to counter chemotherapy resistance. 2 (3.2) 12 (18.8) 16 (25) 22 (34.4) 12 (18.8)
6. I have sufficient knowledge about Chemotherapy-Resistance-Test
(CRT-test)
1 (1.6) 10 (15.6) 25 (39.1) 21 (32.8) 7 (10.9)
7.I used to ask for CTR-test prior to chemotherapy administration 3 (4.8) 20 (31.3) 21 (32.8) 15 (23.4) 5 (8)
8. When CTR-test result showed slight resistance (SR), this means
the treatment plan most likely would not lead to an effective chemotherapy
0 (0) 13 (20.3) 30 (46.9) 18 (28.1) 3 (4.8)
9. When CTR-test result showed extreme resistance (ER), a new
chemotherapy treatment should be planned
0 (0) 4 (6.3) 15 (23.4) 37 (57.8) 8 (12.5)
10. When CTR-test result showed medium resistance (MR), this means
the probability of therapeutic failure is low
0 (0) 10 (15.6) 36 (56.3) 17 (26.6) 1 (1.6)
11. Chemotherapy resistance is a critical health issue worldwide 3 (4.7) 6 (9.4) 16 (25) 29 (45.3) 10 (15.6)
12. Chemotherapy resistance can be transmitted from one cancer patient to another 20 (31.3) 27 (42.2) 12 (18.8) 5 (7.8) 0 (0)
13. Every cancer patient treated with chemotherapy is at high risk of
chemotherapy resistance
3 (4.7) 25 (39.1) 16 (25) 16 (25) 4 (6.3)
14. Misuse of chemotherapy can lead to chemotherapy resistance 1 (1.6) 14 (21.9) 20 (31.3) 23 (35.9) 4 (6.3)
15. Chemotherapy resistance occurs when cancer cells become resistant to chemotherapy, and they no longer work as well 2 (3.2) 13 (20.3) 24 (37.5) 24 (37.5) 1 (1.6)
16. Chemotherapy resistance occurs because of a gene-mutation happened in the cancer tissue 2 (3.2) 2 (3.2) 22 (34.3) 35 (54.7) 3 (4.7)
17. Chemotherapy resistance occurs because of cancer cells may pump the drug out of the cell as fast as it is going in using a molecule called
p-glycoprotein
0 (0) 12 (18.8) 37 (57.8) 13 (20.3) 2 (3.2)
18. Chemotherapy resistance occurs because of cancer cells may stop taking
in the drugs because the protein that transports the drug across the cell wall
stops working
0 (0) 5 (7.8) 33 (51.6) 23 (35.9) 3 (4.7)
19. Chemotherapy resistance occurs because of the cancer cells may learn how to repair the DNA breaks caused by some anti-cancer drugs. 0 (0) 4 (6.3) 35 (54.7) 17 (26.6) 8 (12.5)
20. Chemotherapy resistance occurs because of cancer cells may develop
a mechanism that inactivates the drug
2 (3.2) 6 (9.4) 28 (43.8) 24 (37.5) 4 (6.3)
21. Chemotherapy resistance occurs because of some of the cancer cells that are not killed by the chemotherapy mutate (change) and become resistant to the drug.  0 (0) 2 (3.2) 17 (26.6) 34 (53.1) 11 (17.2)
22. Delaying chemotherapy plays a major role in incidence of chemotherapy resistance. 2 (3.2) 15 (23.4) 23 (35.9) 22 (34.4) 2 (3.2)
23. Reducing chemotherapy dose plays a major role in incidence of
chemotherapy resistance.
1 (1.6) 12 (18.8) 25 (39.1) 26 (40.6) 0 (0)
24. Using of mono-chemotherapy rather than combination-chemotherapy plays a major role in incidence of chemotherapy resistance 0 (0) 23 (35.9) 23 (35.9) 17 (26.6) 1 (1.6)
25. Chemotherapy resistance is associated with the use of specific types of chemotherapy 0 (0) 13 (20.3) 23 (35.9) 25 (39.1) 3 (4.7)
26. The use oradministration of multiple types of chemotherapy treatments can cause chemotherapy resistance 1 (1.6) 20 (39.3) 26 (40.6) 15 (23.4) 2 (3.2)
27. Long duration (i.e., number of cycles) of chemotherapy can cause chemotherapy resistance 1 (1.6) 30 (46.9) 16 (25) 13 (20.3) 4 (6.3)
28. High dose of chemotherapy can cause chemotherapy resistance 2 (3.2) 35 (54.7) 13 (20.3) 10 (15.6) 4 (6.3)
29. Route of chemotherapy administration can play role in incidence of chemotherapy resistance 1 (1.6) 29 (45.3) 21 (32.8) 10 (15.6) 3 (4.7)
30. Anemia plays a major role in incidence of chemotherapy resistance. 3 (4.7) 21 (32.8) 24 (37.5) 15 (23.4) 1 (1.6)
31. Hormonal factors contribute to chemotherapy resistance in breast cancer. 0 (0) 10 (15.6) 21 (32.8) 31 (48.4) 2 (3.2)
32. Age is a determinant of chemotherapy resistance. 0 (0) 23 (35.9) 23 (35.9) 17 (26.6) 1 (1.6)
Knowledge level (N=64) Low knowledge: 46 (71.9%)
Moderate knowledge: 18 (28.1%)
High: 0 (0%)