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Coulter I, Hardy M, Shekelle P, et al. Effect of the Supplemental Use of Antioxidants Vitamin C, Vitamin E, and Coenzyme Q10 for the Prevention and Treatment of Cancer. Rockville (MD): Agency for Healthcare Research and Quality (US); 2003 Aug. (Evidence Reports/Technology Assessments, No. 75.)
This publication is provided for historical reference only and the information may be out of date.
Effect of the Supplemental Use of Antioxidants Vitamin C, Vitamin E, and Coenzyme Q10 for the Prevention and Treatment of Cancer.
Show detailsRAND EPC, CAM Project
Quality Review Form, Topic = ANTIOXIDANT
Article ID:____ Reviewer:________________
First Author: _______________________________________
(Last Name Only)
Study Number: ___of____Description:___________________
(Enter ‘1of 1’ if only one) (if more than one study)
1. Design: (Circle one) | ||
RCT | 1 | |
CCT | 2 | |
Other | 3 (STOP) | |
(If not RCT or CCT, change study design on cover sheet and STOP) | ||
2 What topic(s) does the study report on? (check all that apply) | ||
Vitamin C | □ | |
Vitamin E | □ | |
Co-Q10 | □ | |
None of the above | □ (STOP) | |
2. What condition(s) does the study report on? (circle one) | ||
Cardiovascular | 1 | |
Cancer | 2 | |
Both | 3 | |
None | 4 (STOP) | |
3. Is the study described as randomized? (circle one) | ||
Yes | 1 | |
No | 2 | |
4. If the study was randomized, was method of randomization appropriate? (circle one) | ||
Yes | 1 | |
No | 2 | |
Method not described | 8 | |
Not applicable | 9 | |
5. Is the study described as: (circle one) | ||
Double blind | 1 | |
Single blind, patient | 2 | |
Single blind, outcome assessment | 3 | |
Open | 4 | |
Blinding not described | 8 | |
Not applicable | 9 | |
6. If reported, was the method of double blinding appropriate? (circle one) | ||
Yes | 1 | |
No | 2 | |
Double blinding method not described | 8 | |
Not applicable | 9 | |
7. If study was randomized, did the method of randomization provide for concealment of allocation? (circle one) | ||
Yes | 1 | |
No | 2 | |
Concealment not described | 8 | |
Not applicable | 9 | |
8. Are withdrawals (W) and dropouts (D) described? (circle one) | ||
Yes, reason described for all W and D | 1 | |
Yes, reason described for some W and D | 2 | |
Not described | 8 | |
Not applicable | 9 | |
9. Is this a cross-over study design? (circle one) | ||
Yes | 1 | |
No | 2 | |
Not described | 8 | |
10. Does the study population include a purposefully selected group of individuals chosen because they have any of the following characteristics? (check all that apply) | ||
Race: | ||
African-American | □ (01) | |
Asian | □ (02) | |
Hispanic | □ (03) | |
Gender: | ||
Male | □(04) | |
Female | □ (05) | |
Age: | ||
Children (under 18) | □ (06) | |
Elderly (over 65) | □ (07) | |
Miscellaneous: | ||
Smokers | □ (08) | |
Other: | ||
(Enter code: ____ ____, ____ ____, ____ ___, ____ ____, ____ ____ ) | ||
None of the above | □ (97) | |
11. Does the study population include a purposefully selected group of individuals chosen because they have any of the following comorbidities? (enter code or circle) | ||
Code: ____ ____, ____ ____, ____ ___, ____ ____, ____ ____ | ||
Not applicable | 99 | |
12. Does the study population include a purposefully selected group of individuals chosen because they have any of the following predisposing factors? (enter code or circle) | ||
Code: ____ ____, ____ ____, ____ ___, ____ ____, ____ ____ | ||
Not applicable | 99 | |
13. If this study is from a larger trial, please note the name of original trial. (circle one or enter code) | ||
ADMT | □ (01) | |
ATBC | □ (02) | |
CGPPP | □ (03) | |
CHAOS | □ (04) | |
GISSI/GIZZI | □ (05) | |
HOPE | □ (06) | |
MRC/BHF | □ (07) | |
PHS II | □ (08) | |
SPACE | □ (09) | |
SUVIMAX | □ (10) | |
WHI | □ (11) | |
WHS | □ (12) | |
Code: ____ ____ | ||
Not from a larger trial | □ (99) | |
Patient Characteristics - CARDIOVASCULAR | ||
14. What type of cardiovascular disease did the study report on? (check all that apply and/or add code) | ||
CAD | π (01) | |
CVA/TIA | ρ (02) | |
PVD | ρ (03) | |
CHF | ρ (04) | |
Angina | ρ (05) | |
Code: ____ ____ | ||
____ ____ | ||
____ ____ | ||
____ ____ | ||
Not Applicable | ρ (99) | |
15. What was the severity of the disease? | ||
Enter code: ____ ____ (enter 99 if not applicable) | ||
Patient Characteristics - CANCER | ||
16. What type of cancer did the study report on? (check all that apply and/or add code) | ||
Breast | ρ (01) | |
Lung | ρ (02) | |
Prostate | ρ (03) | |
Oral | ρ (04) | |
Cervix | ρ (05) | |
Gastric | ρ (06) | |
Colon | ρ (07) | |
Code: ____ ____ | ||
____ ____ | ||
____ ____ | ||
____ ____ | ||
Not Applicable | 99 | |
17. What was the severity of the disease? (check all that apply and/or add code) | ||
Pre-cancerous | ρ (01) | |
Localized | ρ (02) | |
Metastatic | ρ (03) | |
Other code: ____ ____ | ||
Not Applicable | 99 | |
If the study has a control/usual care arm, enter that data in arm 1. Otherwise, enter data for the groups in order of first mention. |
Arm 1 of Description
18. What type of arm is this? (circle one) | |
Placebo | 1 |
Usual care | 2 |
Primary Antioxidant | 3 |
Other active treatment | 4 |
19. What was the sample size in this arm? | |
___ ___ ___ , ___ ___ ___ | ___ ___ ___ , ___ ___ ___ |
Entering | Completing |
(Enter 999,999 if not reported.) |
20. Intervention
Intervention | Daily Dose | Units | Route of administration | Duration | Units | ||
---|---|---|---|---|---|---|---|
1 _______ | _______ | ________ | taken | _________ | _________ | ________ | |
2 _______ | _______ | ________ | taken | _________ | _________ | ________ | |
3 _______ | _______ | ________ | taken | _________ | _________ | ________ | |
4 _______ | _______ | ________ | taken | _________ | _________ | ________ | |
Enter code | Enter a number | 1. μg | 1. PO | Enter a number | 1. Hour | 8. Mean Year | |
2. mg | 2. IV | 2. Day | 9. Median Year | ||||
998. ND | 3. gm | 8. ND | 998. ND | 3. Week | 10. Maximum Month | ||
999. NA | 4. IU | 9. NA | 999. NA | 4. Month | 11. Minimum Month | ||
8. ND | 5. Year | 12. Maximum Year | |||||
9. NA | 6. Mean Month | 13. Minimum Year | |||||
7. Median Month | 98. ND | ||||||
99. NA |
Arm 2 of Description
18. What type of arm is this? (circle one) | |
Placebo | 1 |
Usual care | 2 |
Primary Antioxidant | 3 |
Other active treatment | 4 |
19. What was the sample size in this arm? | |
___ ___ ___ , ___ ___ ___ | ___ ___ ___ , ___ ___ ___ |
Entering | Completing |
(Enter 999,999 if not reported.) |
20. Intervention
Intervention | Daily Dose | Units | Route of administration | Duration | Units | ||
---|---|---|---|---|---|---|---|
1 _______ | _______ | ________ | taken | _________ | _________ | ________ | |
2 _______ | _______ | ________ | taken | _________ | _________ | ________ | |
3 _______ | _______ | ________ | taken | _________ | _________ | ________ | |
4 _______ | _______ | ________ | taken | _________ | _________ | ________ | |
Enter code | Enter a number | 1. μg | 1. PO | Enter a number | 1. Hour | 8. Mean Year | |
2. mg | 2. IV | 2. Day | 9. Median Year | ||||
998. ND | 3. gm | 8. ND | 998. ND | 3. Week | 10. Maximum Month | ||
999. NA | 4. IU | 9. NA | 999. NA | 4. Month | 11. Minimum Month | ||
8. ND | 5. Year | 12. Maximum Year | |||||
9. NA | 6. Mean Month | 13. Minimum Year | |||||
7. Median Month | 98. ND | ||||||
99. NA |
Arm 3 of Description
18. What type of arm is this? (circle one) | |
Placebo | 1 |
Usual care | 2 |
Primary Antioxidant | 3 |
Other active treatment | 4 |
19. What was the sample size in this arm? | |
___ ___ ___ , ___ ___ ___ | ___ ___ ___ , ___ ___ ___ |
Entering | Completing |
(Enter 999,999 if not reported.) |
20. Intervention
Intervention | Daily Dose | Units | Route of administration | Duration | Units | ||
---|---|---|---|---|---|---|---|
1 _______ | _______ | ________ | taken | _________ | _________ | ________ | |
2 _______ | _______ | ________ | taken | _________ | _________ | ________ | |
3 _______ | _______ | ________ | taken | _________ | _________ | ________ | |
4 _______ | _______ | ________ | taken | _________ | _________ | ________ | |
Enter code | Enter a number | 1. μg | 1. PO | Enter a number | 1. Hour | 8. Mean Year | |
2. mg | 2. IV | 2. Day | 9. Median Year | ||||
998. ND | 3. gm | 8. ND | 998. ND | 3. Week | 10. Maximum Month | ||
999. NA | 4. IU | 9. NA | 999. NA | 4. Month | 11. Minimum Month | ||
8. ND | 5. Year | 12. Maximum Year | |||||
9. NA | 6. Mean Month | 13. Minimum Year | |||||
7. Median Month | 98. ND | ||||||
99. NA |
Arm 4 of Description
18. What type of arm is this? (circle one) | |
Placebo | 1 |
Usual care | 2 |
Primary Antioxidant | 3 |
Other active treatment | 4 |
19. What was the sample size in this arm? | |
___ ___ ___ , ___ ___ ___ | ___ ___ ___ , ___ ___ ___ |
Entering | Completing |
(Enter 999,999 if not reported.) |
20. Intervention
Intervention | Daily Dose | Units | Route of administration | Duration | Units | ||
---|---|---|---|---|---|---|---|
1 _______ | _______ | ________ | taken | _________ | _________ | ________ | |
2 _______ | _______ | ________ | taken | _________ | _________ | ________ | |
3 _______ | _______ | ________ | taken | _________ | _________ | ________ | |
4 _______ | _______ | ________ | taken | _________ | _________ | ________ | |
Enter code | Enter a number | 1. μg | 1. PO | Enter a number | 1. Hour | 8. Mean Year | |
2. mg | 2. IV | 2. Day | 9. Median Year | ||||
998. ND | 3. gm | 8. ND | 998. ND | 3. Week | 10. Maximum Month | ||
999. NA | 4. IU | 9. NA | 999. NA | 4. Month | 11. Minimum Month | ||
8. ND | 5. Year | 12. Maximum Year | |||||
9. NA | 6. Mean Month | 13. Minimum Year | |||||
7. Median Month | 98. ND | ||||||
99. NA |
Outcomes
21. Type of outcomes measured:
Enter the code for each outcome measured. |
____ ____ |
____ ____ |
____ ____ |
____ ____ |
____ ____ |
____ ____ |
____ ____ |
____ ____ |
____ ____ |
____ ____ |
____ ____ |
____ ____ |
Evaluation
22. When, relative to the start of the intervention, were outcomes reported?
Enter the number and letters in the appropriate box
Number | Unit | |
---|---|---|
1st follow-up | ||
2nd follow-up | ||
3rd follow-up | ||
4th follow-up | ||
5th follow-up | ||
6th follow-up | ||
Additional follow-ups: |
Use the following abbreviations for units:
MI | minute |
HR | hour |
DY | day |
WK | week |
MO | month |
YR | year |
YRMN | mean for year |
YRME | median for year |
YRMX | maximum for year |
YRMI | minimum for year |
MOMN | mean for month |
MOME | median for month |
MOMX | maximum for month |
MOMI | minimum for month |
ND | not described |
NA | not applicable |
23. Is there a sub-group analysis? (circle one) | |
Yes | 1 |
No | 2 |
If yes, code | _____ _____ _____ _____ |
_____ _____ _____ _____ | |
_____ _____ _____ ____ |
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