Age
Item
1. aged 40 years or older (no upper limit).
boolean
C0001779 (UMLS CUI [1])
Mild or moderate copd and spirometry
Item
2. established respirologist-diagnosed mild or moderate copd, according to the canadian thoracic society (cts) lung function guidelines.(33) for a diagnosis of mild copd, patients must have fev1 60% to 79% predicted and fev1 / fvc < 0.7. for a diagnosis of moderate copd, patients must have fev1 40% to 59% predicted and fev1 / fvc < 0.7.
boolean
C0730604 (UMLS CUI [1,1])
C0037981 (UMLS CUI [1,2])
C0730605 (UMLS CUI [2,1])
C0037981 (UMLS CUI [2,2])
Smoking History
Item
3. current or former smokers with > 20 pack-year smoking history.
boolean
C1519384 (UMLS CUI [1])
Informed consent
Item
4. ability to provide informed consent.
boolean
C0021430 (UMLS CUI [1])
Female subjects must be post-menopausal
Item
5. women subjects must be post-menopausal.
boolean
C0206159 (UMLS CUI [1])
Acute exaverbation of chronic bronchitis
Item
1. current or recent (within 4 weeks) acute exacerbation of chronic bronchitis
boolean
C0856695 (UMLS CUI [1])
Current daily use of Supplements that provide a daily dose of selenium that is greater than 100 µg
Item
2. current daily use of mineral or vitamin + mineral supplements or other natural health products that provide a daily dose of selenium that is greater than 100 µg
boolean
C0724359 (UMLS CUI [1,1])
C0036581 (UMLS CUI [1,2])
C1566558 (UMLS CUI [2,1])
C0036581 (UMLS CUI [2,2])
Current daily use of vitamins
Item
3. current daily use of >5000 u of vitamin a, >1000 mg of vitamin c, or >800 u vitamin e
boolean
C3661611 (UMLS CUI [1])
C3661608 (UMLS CUI [2])
C3661607 (UMLS CUI [3])
Comorbidity due to kidney or liver disease
Item
4. known significant co-morbidity such as renal (creatinine > 150 mol/l) or hepatic disease (ast or alt >3 times normal). measurement of these will be a requirement of the study. creatinine and alanine aminotransferase (alt) will be measured at the beginning and at the end of the study.
boolean
C0009488 (UMLS CUI [1,1])
C0022658 (UMLS CUI [1,2])
C0201975 (UMLS CUI [1,3])
C0009488 (UMLS CUI [2,1])
C0023895 (UMLS CUI [2,2])
C0428321 (UMLS CUI [2,3])
Known or susspected active caner
Item
5. known or suspected active cancer other than non-melanoma skin cancer.
boolean
C1882062 (UMLS CUI [1,1])
C0011900 (UMLS CUI [1,2])
C1882062 (UMLS CUI [2,1])
C0332147 (UMLS CUI [2,2])
Other concurrent polmunary diseases
Item
6. other concurrent major respiratory diagnosis other than copd/asthma.
boolean
C0009488 (UMLS CUI [1,1])
C0024115 (UMLS CUI [1,2])
Concomitant medication with Hydroxymethylglutaryl-CoA Reductase Inhibitors
Item
7. plan to start statin drugs during the 12 weeks of study drug (may enroll if statins started >1 month before current study enrollment or deferred until study completion).
boolean
C2826666 (UMLS CUI [1,1])
C0360714 (UMLS CUI [1,2])
Consumption of brazil nuts
Item
8. consumption of brazil nuts.
boolean
C0440287 (UMLS CUI [1,1])
C0013470 (UMLS CUI [1,2])
Comorbidity due to homocystinuria
Item
9. individuals who have homocystinuria
boolean
C0009488 (UMLS CUI [1,1])
C0019880 (UMLS CUI [1,2])
Concomitant medication with niacin
Item
10. on niacin at a daily dose of 500 mg or higher for hyperlipidemia.
boolean
C2826666 (UMLS CUI [1,1])
C0027996 (UMLS CUI [1,2])
Allergies to products
Item
11. if you have allergies to products that contain dicalcium phosphate, talc sugarloaf, stearic acid, or silica.
boolean
C0020517 (UMLS CUI [1,1])
C0795598 (UMLS CUI [1,2])
C0020517 (UMLS CUI [2,1])
C0039267 (UMLS CUI [2,2])
C0020517 (UMLS CUI [3,1])
C0038229 (UMLS CUI [3,2])
C0020517 (UMLS CUI [4,1])
C0037098 (UMLS CUI [4,2])