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ohdsi-questions [2018/04/13 23:48]
rohit
ohdsi-questions [2018/04/14 00:00]
rohit
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   -Outcome - All-cause mortality as the primary outcome and asthma-related mortality as a secondary outcome.   -Outcome - All-cause mortality as the primary outcome and asthma-related mortality as a secondary outcome.
   -Risk Window - 1st day of treatment exposure to end of the study.    -Risk Window - 1st day of treatment exposure to end of the study. 
 +
  
 ===Question - 8=== ===Question - 8===
 +(Not sure what C/D stand for, I’ve asked this on the forum and will update once get a reply).
 +To compare the risk of asthma exacerbations between patients with Chronic Obstructive Pulmonary Disease (COPD) C/D and inhaled corticosteroids withdrawal versus patients with COPD C/D who have never used ICS.
 +  -Treatment Cohort - Patients with COPD and inhaled corticosteroids withdrawal.
 +  -Comparator Cohort - Patients with COPS not exposed to inhaled corticosteroids. 
 +  -Outcome - Asthma Exacerbations.
 +  -Risk Window - 1 day after last exposure start to 180 days after the exposure end.
 +
 +
 +===Question - 9===
 To compare the risk of serious cardiovascular events (sudden cardiac death, acute myocardial infarction, and stroke) between the new users of triptans versus patients who used triptans for one year (short-term) and more than one year (long-term). To compare the risk of serious cardiovascular events (sudden cardiac death, acute myocardial infarction, and stroke) between the new users of triptans versus patients who used triptans for one year (short-term) and more than one year (long-term).
   -Treatment Cohort - New users treated with triptans.   -Treatment Cohort - New users treated with triptans.
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   -Risk Window - 1 day after treatment exposure starts to 0 days after treatment exposure ends.    -Risk Window - 1 day after treatment exposure starts to 0 days after treatment exposure ends. 
  
-===Question - 9===+===Question - 10===
 To compare the risk of osteoporosis or fracture increase in postmenopausal hypothyroid patients using high strength levothyroxine versus patients using low strength levothyroxine. To compare the risk of osteoporosis or fracture increase in postmenopausal hypothyroid patients using high strength levothyroxine versus patients using low strength levothyroxine.
   -Treatment Cohort - On treatment postmenopausal (age >=50 years) patients with hypothyroidism exposed to high strength of levothyroxine (>=0.044 mg/day).    -Treatment Cohort - On treatment postmenopausal (age >=50 years) patients with hypothyroidism exposed to high strength of levothyroxine (>=0.044 mg/day). 
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   -Risk Window: From the first day of treatment with high or low strength levothyroxine until the end of cohort study, end of follow-up or death.   -Risk Window: From the first day of treatment with high or low strength levothyroxine until the end of cohort study, end of follow-up or death.
  
-===Question - 10===+===Question - 11===
 To compare the risk of chronic kidney disease (CKD) among patients exposed to proton pump inhibitors versus patients not exposed to proton pump inhibitors. To compare the risk of chronic kidney disease (CKD) among patients exposed to proton pump inhibitors versus patients not exposed to proton pump inhibitors.
   -Treatment Cohort - Patients with chronic exposure to proton pump inhibitors, age >= 18 years heaving no evidence of chronic kidney disease (eGFR < 60ml/min).   -Treatment Cohort - Patients with chronic exposure to proton pump inhibitors, age >= 18 years heaving no evidence of chronic kidney disease (eGFR < 60ml/min).
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   -Outcome - Incidence of chronic kidney disease.    -Outcome - Incidence of chronic kidney disease. 
  
-===Question - 11===+===Question - 12===
 To compare the risk of Atherosclerotic Cardiovascular Disease (ACD) between patients with a diagnosis of hyperlipidemia (HLD) on statins and elevated triglycerides treated with fibrates versus patients with a diagnosis of HLD on statins and elevated triglycerides not treated with fibrates.  To compare the risk of Atherosclerotic Cardiovascular Disease (ACD) between patients with a diagnosis of hyperlipidemia (HLD) on statins and elevated triglycerides treated with fibrates versus patients with a diagnosis of HLD on statins and elevated triglycerides not treated with fibrates. 
   -Treatment Cohort - Patients with a diagnosis of HLD on statins and elevated triglycerides treated with fibrates.   -Treatment Cohort - Patients with a diagnosis of HLD on statins and elevated triglycerides treated with fibrates.
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   -Risk Window - 1 day after exposure start to 0 days after exposure ends.   -Risk Window - 1 day after exposure start to 0 days after exposure ends.
  
-===Question - 12===+===Question - 13===
 To compare the risk of Atherosclerotic Cardiovascular Disease (ACD) between patients with a diagnosis of hyperlipidemia (HLD) on statins with ideal cholesterol versus patients with a diagnosis of HLD on statins with elevated cholesterol.  To compare the risk of Atherosclerotic Cardiovascular Disease (ACD) between patients with a diagnosis of hyperlipidemia (HLD) on statins with ideal cholesterol versus patients with a diagnosis of HLD on statins with elevated cholesterol. 
   -Treatment Cohort - Patients with the diagnosis of HLD treated with statins and have ideal cholesterol level.   -Treatment Cohort - Patients with the diagnosis of HLD treated with statins and have ideal cholesterol level.
ohdsi-questions.txt · Last modified: 2018/06/04 20:14 by nigam