Alberta Health Derived Administrative Data [Alberta Researchers Only] Data Dictionary

This data source contains specific data that has been returned to us from previous researchers, such as the derived data from administrative health linkage data.

52,770

Completions

36 - 85

Age Range

2016 - 2018

Collection Period

35,216

Provided Biospecimen

Survey Variables by Section

Var ID Var Name Label Description Type Valid Values Unit
15117 AH_AGE_AT_LINKAGE Age at Alberta Health data Linkage Participant Age at AH Linkage Number (Decimal) Range: 1-99 Years
12249 AH_AIS_DX Acute Ischemic Stroke Diagnosis Indicates if the participant has ever been diagnosed with acute ischemic stroke Coded 0, 1
12264 AH_AIS_DX_INC Incident Acute Ischemic Stroke Indicates if the participant who had no previous CVD surgery (PCI or CABG) or CVD diagnoses before enrollment, was diagnosed with acute ischemic stroke after the clearance time (6 months after enrollment) and washout time (Oct 1 2000-Oct 1 2001) when AH data was linked. Coded 0, 1
12265 AH_AIS_DX_PRV Prevalent Acute Ischemic Stroke Non-incident cases of acute ischemic stroke Coded 0, 1
12392 AH_AIS_INDEX_AGE Acute Ischemic Stroke Index Age Participant's age at the earliest date of hospitalization records contributing to case definition of acute ischemic stroke Number (Decimal) Range: 1-99 years
12239 AH_ANG_DX Unstable Angina Diagnosis Indicates if the participant has ever been diagnosed with unstable angina Coded 0, 1
12254 AH_ANG_DX_INC Incident Unstable Angina Indicates if the participant who had no previous CVD surgery (PCI or CABG) or CVD diagnoses before enrollment, was diagnosed with unstable angina after the clearance time (6 months after enrollment) and washout time (Oct 1 2000-Oct 1 2001) when AH data was linked. Coded 0, 1
12255 AH_ANG_DX_PRV Prevalent Unstable Angina Non-incident cases of unstable angina Coded 0, 1
12387 AH_ANG_INDEX_AGE Unstable Angina Index Age Participant's age at the earliest date of hospitalization records contributing to case definition of unstable angina Number (Decimal) Range: 1-99 years
12287 AH_ASTHMA_DX Asthma Diagnosis Indicates if the participant has ever been diagnosed with asthma Coded 0, 1
12288 AH_ASTHMA_DX_INC Incident Asthma Indicates if the participant was diagnosed with asthma after the clearance time (6 months after enrollment) and washout time (Oct 1 2000-Oct 1 2001) when AH data was linked. Coded 0, 1
12289 AH_ASTHMA_DX_PRV Prevalent Asthma Non-incident cases of asthma Coded 0, 1
12400 AH_ASTHMA_INDEX_AGE Asthma Index Age Participant's age at the earliest date of hospitalization, or 2nd practitioner claims of two claim records within 2 years and at least 30 days apart between two claims, contributing to case definition of asthma Number (Decimal) Range: 1-99 years
12253 AH_CABG_ATP Coronary Artery Bypass Graft Indicates if the participant has ever had coronary artery bypass graft Coded 0, 1
12394 AH_CABG_INDEX1_AGE First Coronary Artery Bypass Graft Index Age Participant's age when the first coronary artery bypass graft was delivered Number (Decimal) Range: 1-99 years
12417 AH_CABG_INDEX2_AGE Second Coronary Artery Bypass Graft Index Age Participant's age when the second coronary artery bypass graft was delivered Number (Decimal) Range: 1-99 years
12418 AH_CABG_INDEX3_AGE Third Coronary Artery Bypass Graft Index Age Participant's age when the third coronary artery bypass graft was delivered Number (Decimal) Range: 1-99 years
12419 AH_CABG_INDEX4_AGE Fourth Coronary Artery Bypass Graft Index Age Participant's age when the fourth coronary artery bypass graft was delivered Number (Decimal) Range: 1-99 years
12420 AH_CABG_INDEX5_AGE Fifth Coronary Artery Bypass Graft Index Age Participant's age when the fifth coronary artery bypass graft was delivered Number (Decimal) Range: 1-99 years
12421 AH_CABG_INDEX6_AGE Sixth Coronary Artery Bypass Graft Index Age Participant's age when the sixth coronary artery bypass graft was delivered Number (Decimal) Range: 1-99 years
12283 AH_CBRON_DX Chronic Bronchitis Diagnosis Indicates if the participant has ever been diagnosed with chronic bronchitis Coded 0, 1
12284 AH_CBRON_DX_INC Incident Chronic Bronchitis Indicates if the participant was diagnosed with chronic bronchitis after the clearance time (6 months after enrollment) and washout time (Oct 1 2000-Oct 1 2001) when AH data was linked. Coded 0, 1
12285 AH_CBRON_DX_PRV Prevalent Chronic Bronchitis Non-incident cases of chronic bronchitis Coded 0, 1
12399 AH_CBRON_INDEX_AGE Chronic Bronchitis Index Age Participant's age at the earliest date of hospitalization, or primary diagnosis in 2nd practitioner claims of two claim records within 2 years, contributing to case definition of chronic bronchitis Number (Decimal) Range: 1-99 years
12235 AH_CHARL_ATP_BASE Charlson Index At Baseline Total number of Charlson comorbidities the participant had between 3 years before enrollment and 6 months after enrollment Number (Integer) Range: 0 - 8 charlson comorbidities
12275 AH_COPD_DX COPD Diagnosis Indicates if the participant has ever been diagnosed with COPD Coded 0, 1
12276 AH_COPD_DX_INC Incident COPD Indicates if the participant was diagnosed with COPD after the clearance time (6 months after enrollment) and washout time (Oct 1 2000-Oct 1 2001) when AH data was linked. Coded 0, 1
12277 AH_COPD_DX_PRV Prevalent COPD Non-incident cases of COPD Coded 0, 1
12397 AH_COPD_INDEX_AGE COPD Index Age Participant's age at the earliest date of hospitalization, or primary diagnosis in 2nd practitioner claims of two claim records within 2 years, contributing to case definition of COPD Number (Decimal) Range: 1-99 years
12311 AH_CROHN_DX Crohn’s Disease Diagnosis Indicates if the participant has ever been diagnosed with Crohn’s disease Coded 0, 1
12312 AH_CROHN_DX_INC Incident Crohn’s Disease Indicates if the participant was diagnosed with Crohn's disease after the clearance time (6 months after enrollment) and washout time (Oct 1 2000-Oct 1 2001) when AH data was linked. Coded 0, 1
12313 AH_CROHN_DX_PRV Prevalent Crohn’s Disease Non-incident cases of Crohn’s disease Coded 0, 1
12406 AH_CROHN_INDEX_AGE Crohn’s Disease Index Age Participant's age at the earliest date of two hospitalization records within 2 years, or four practitioner claim records within 2 years, or two ambulatory care records within 2 years, contributing to case definition of Crohn’s disease Number (Decimal) Range: 1-99 years
12327 AH_DEMEN_DX Dementia Diagnosis Indicates if the participant has ever been diagnosed with dementia Coded 0, 1
12328 AH_DEMEN_DX_INC Incident Dementia Indicates if the participant was diagnosed with dementia after the clearance time (6 months after enrollment) and washout time (Oct 1 2000-Oct 1 2001) when AH data was linked. Coded 0, 1
12329 AH_DEMEN_DX_PRV Prevalent Dementia Non-incident cases of dementia Coded 0, 1
12410 AH_DEMEN_INDEX_AGE Dementia Index Age Participant's age at the earliest date of hospitalization, primary diagnosis in 3rd practitioner claims of three claim records within 2 years, or drug dispense/claim records contributing to case definition of dementia Number (Decimal) Range: 1-99 years
12332 AH_DEPRESSION_DX_2YR_INC Incident Depression Indicates if the participant was diagnosed with depression after the clearance time (2 years after enrollment) and washout time (Oct 1 2000-Oct 1 2001) when AH data was linked. Coded 0, 1
12333 AH_DEPRESSION_DX_2YR_PRV Prevalent Depression Non-incident cases of depression Coded 0, 1
12331 AH_DEPRESSION_DX_ALL Depression Diagnosis Indicates if the participant has ever been diagnosed with depression Coded 0, 1
12411 AH_DEPRESSION_INDEX_AGE Depression Index Age Participant's age at the earliest date of hospitalization records, practitioner claim records or drug dispense/claim records within 6 months contributing to case definition of depression; time between two index dates (episodes) should be >=4 months Number (Decimal) Range: 1-99 years
12341 AH_DIABETES_BASE_FULL Self-Reported Diabetes Indicates if the participant self-reported being diagnosed with diabetes at baseline Coded 0, 1, 999
12267 AH_DM_DX Type I or II Diabetes Diagnosis Indicates if the participant has ever been diagnosed with type I or II diabetes Coded 0, 1
12268 AH_DM_DX_INC Incident Type I or II Diabetes Indicates if the participant was diagnosed with type I or II diabetes after the clearance time (6 months after enrollment) and washout time (Oct 1 2000-Oct 1 2001) when AH data was linked. Coded 0, 1
12269 AH_DM_DX_PRV Prevalent Type I or II Diabetes Non-incident cases of type I or II diabetes Coded 0, 1
12395 AH_DM_INDEX_AGE Type I or II Diabetes Index Age Participant's age at the earliest date of hospitalization, or practitioner claim records, contributing to case definition of type I or II diabetes Number (Decimal) Range: 1-99 years
12234 AH_ELIX_ATP_BASE Elixhauser Index At Baseline Total number of Elixhauser comorbidities the participants had between 3 years before enrollment and 6 months after enrollment Number (Integer) Range: 0 - 13 elixhauser comorbidities
12279 AH_EMPHY_DX Emphysema Diagnosis Indicates if the participant has ever been diagnosed with emphysema Coded 0, 1
12280 AH_EMPHY_DX_INC Incident Emphysema Indicates if the participant was diagnosed with emphysema after the clearance time (6 months after enrollment) and washout time (Oct 1 2000-Oct 1 2001) when AH data was linked. Coded 0, 1
12281 AH_EMPHY_DX_PRV Prevalent Emphysema Non-incident cases of emphysema Coded 0, 1
12398 AH_EMPHY_INDEX_AGE Emphysema Index Age Participant's age at the earliest date of hospitalization, or primary diagnosis in 2nd practitioner claims of two claim records within two years, contributing to case definition of emphysema Number (Decimal) Range: 1-99 years
12271 AH_GDM_DX Gestational Diabetes Diagnosis Indicates if the participant has ever been diagnosed with gestational diabetes Coded 0, 1
12272 AH_GDM_DX_INC Incident Gestational Diabetes Indicates if the participant was diagnosed with gestational diabetes after the clearance time (6 months after enrollment) and washout time (Oct 1 2000-Oct 1 2001) when AH data was linked. Coded 0, 1
12273 AH_GDM_DX_PRV Prevalent Gestational Diabetes Non-incident cases of gestational diabetes Coded 0, 1
12396 AH_GDM_INDEX_AGE Gestational Diabetes Index Age Participant's age at the earliest date of hospitalization, or primary diagnosis in practitioner claim records, contributing to case definition of gestational diabetes Number (Decimal) Range: 1-99 years
12323 AH_HBV_DX Hepatitis B Diagnosis Indicates if the participant has ever been diagnosed with hepatitis B Coded 0, 1
12324 AH_HBV_DX_INC Incident Hepatitis B Indicates if the participant was diagnosed with hepatitis B after the clearance time (6 months after enrollment) and washout time (Oct 1 2000-Oct 1 2001) when AH data was linked. Coded 0, 1
12325 AH_HBV_DX_PRV Prevalent Hepatitis B Non-incident cases of hepatitis B Coded 0, 1
12409 AH_HBV_INDEX_AGE Hepatitis B Index Age Participant's age at the earliest date of two hospitalization records within 2 years, or two practitioner claim records within 2 years, or two ambulatory care records within 2 years, contributing to case definition of hepatitis B Number (Decimal) Range: 1-99 years
12245 AH_HF_DX Heart Failure Diagnosis Indicates if the participant has ever been diagnosed with heart failure Coded 0, 1
12260 AH_HF_DX_INC Incident Heart Failure Indicates if the participant who had no previous CVD surgery (PCI or CABG) or CVD diagnoses before enrollment, was diagnosed with heart failure after the clearance time (6 months after enrollment) and washout time (Oct 1 2000-Oct 1 2001) when AH data was linked. Coded 0, 1
12261 AH_HF_DX_PRV Prevalent Heart Failure Non-incident cases of heart failure Coded 0, 1
12390 AH_HF_INDEX_AGE Heart Failure Index Age Participant's age at the earliest date of primary diagnosis in hospitalization records, or primary diagnosis in practitioner claim records, contributing to case definition of heart failure Number (Decimal) Range: 1-99 years
12237 AH_HOSP_ATP_BASE Hospitalization At Baseline Indicates if the participant had been hospitalized between 3 years before enrollment and 6 months after enrollment. Coded 0, 1
12307 AH_IBD_DX Inflammatory Bowel Disease Diagnosis Indicates if the participant has ever been diagnosed with inflammatory bowel disease Coded 0, 1
12308 AH_IBD_DX_INC Incident Inflammatory Bowel Disease Indicates if the participant was diagnosed with inflammatory bowel disease after the clearance time (6 months after enrollment) and washout time (Oct 1 2000-Oct 1 2001) when AH data was linked. Coded 0, 1
12309 AH_IBD_DX_PRV Prevalent Inflammatory Bowel Disease Non-incident cases of inflammatory bowel disease Coded 0, 1
12405 AH_IBD_INDEX_AGE Inflammatory Bowel Disease Index Age Participant's age at the earliest date of two hospitalization records within 2 years, or four practitioner claim records within 2 years, or two ambulatory care records within 2 years, contributing to case definition of inflammatory bowel disease Number (Decimal) Range: 1-99 years
12243 AH_IHD_DX Ischemic Heart Disease Diagnosis Indicates if the participant has ever been diagnosed with ischemic heart disease Coded 0, 1
12258 AH_IHD_DX_INC Incident Ischemic Heart Disease Indicates if the participant who had no previous CVD surgery (PCI or CABG) or CVD diagnoses before enrollment, was diagnosed with ischemic heart disease after the clearance time (6 months after enrollment) and washout time (Oct 1 2000-Oct 1 2001) when AH data was linked. Coded 0, 1
12259 AH_IHD_DX_PRV Prevalent Ischemic Heart Disease Non-incident cases of ischemic heart disease Coded 0, 1
12389 AH_IHD_INDEX_AGE Ischemic Heart Disease Index Age Participant's age at the earliest date of primary diagnosis in hospitalization records, or primary diagnosis in practitioner claim records, contributing to case definition of ischemic heart disease Number (Decimal) Range: 1-99 years
12236 AH_LOS_BASELINE Length Of Hospital Stay At Baseline Total number of days the participant stayed in hospital between 3 years before enrollment and 6 months after enrollment Number (Integer) Range: 0 - 1279 days
12319 AH_LVC_DX Liver Cirrhosis Diagnosis Indicates if the participant has ever been diagnosed with liver cirrhosis Coded 0, 1
12320 AH_LVC_DX_INC Incident Liver Cirrhosis Indicates if the participant was diagnosed with liver cirrhosis after the clearance time (6 months after enrollment) and washout time (Oct 1 2000-Oct 1 2001) when AH data was linked. Coded 0, 1
12321 AH_LVC_DX_PRV Prevalent Liver Cirrhosis Non-incident cases of liver cirrhosis Coded 0, 1
12408 AH_LVC_INDEX_AGE Liver Cirrhosis Index Age Participant's age at the earliest date of hospitalization records, or 2nd date of two practitioner claim records within 2 years, or ambulatory care records, contributing to case definition of liver cirrhosis Number (Decimal) Range: 1-99 years
12241 AH_MI_DX Acute Myocardial Infarction Diagnosis Indicates if the participant has ever been diagnosed with acute myocardial infarction Coded 0, 1
12256 AH_MI_DX_INC Incident Acute Myocardial Infarction Indicates if the participant who had no previous CVD surgery (PCI or CABG) or CVD diagnoses before enrollment, was diagnosed with myocardial infarction after the clearance time (6 months after enrollment) and washout time (Oct 1 2000-Oct 1 2001) when AH data was linked. Coded 0, 1
12257 AH_MI_DX_PRV Prevalent Acute Myocardial Infarction Non-incident cases of acute myocardial infarction Coded 0, 1
12388 AH_MI_INDEX_AGE Acute Myocardial Infarction Index Age Participant's age at the earliest date of hospitalization records contributing to case definition of acute myocardial infarction Number (Decimal) Range: 1-99 years
12299 AH_MS_DX Multiple Sclerosis Diagnosis Indicates if the participant has ever been diagnosed with multiple sclerosis Coded 0, 1
12300 AH_MS_DX_INC Incident Multiple Sclerosis Indicates if the participant was diagnosed with multiple sclerosis after the clearance time (6 months after enrollment) and washout time (Oct 1 2000-Oct 1 2001) when AH data was linked. Coded 0, 1
12301 AH_MS_DX_PRV Prevalent Multiple Sclerosis Non-incident cases of multiple sclerosis Coded 0, 1
12403 AH_MS_INDEX_AGE Multiple Sclerosis Index Age Participant's age at the date of the later hospitalization, or of the later claim records of two healthcare records (hospitalization or practitioner claims) within two years, contributing to case definition of multiple sclerosis Number (Decimal) Range: 1-99 years
12291 AH_OA_DX Osteoarthritis Diagnosis Indicates if the participant has ever been diagnosed with osteoarthritis Coded 0, 1
12292 AH_OA_DX_INC Incident Osteoarthritis Indicates if the participant was diagnosed with osteoarthritis after the clearance time (6 months after enrollment) and washout time (Oct 1 2000-Oct 1 2001) when AH data was linked. Coded 0, 1
12293 AH_OA_DX_PRV Prevalent Osteoarthritis Non-incident cases of osteoarthritis Coded 0, 1
12401 AH_OA_INDEX_AGE Osteoarthritis Index Age Participant's age at the earliest date of hospitalization, or two claim records within 2 years, or two ambulatory care records within 2 years, contributing to case definition of osteoarthritis Number (Decimal) Range: 1-99 years
12303 AH_OP_DX Osteoporosis Diagnosis Indicates if the participant has ever been diagnosed with osteoporosis Coded 0, 1
12304 AH_OP_DX_INC Incident Osteoporosis Indicates if the participant was diagnosed with osteoporosis after the clearance time (6 months after enrollment) and washout time (Oct 1 2000-Oct 1 2001) when AH data was linked. Coded 0, 1
12305 AH_OP_DX_PRV Prevalent Osteoporosis Non-incident cases of osteoporosis Coded 0, 1
12404 AH_OP_INDEX_AGE Osteoporosis Index Age Participant's age at the earliest date of bone mineral density (BMD) test dates, contributing to case definition of osteoporosis Number (Decimal) Range: 1-99 years
12251 AH_PCI_ATP Percutaneous Coronary Intervention Indicates if the participant has ever had percutaneous coronary intervention Coded 0, 1
12393 AH_PCI_INDEX1_AGE First Percutaneous Coronary Intervention Index Age Participant's age when the first percutaneous coronary intervention was delivered Number (Decimal) Range: 1-99 years
12412 AH_PCI_INDEX2_AGE Second Percutaneous Coronary Intervention Index Age Participant's age when the second percutaneous coronary intervention was delivered Number (Decimal) Range: 1-99 years
12413 AH_PCI_INDEX3_AGE Third Percutaneous Coronary Intervention Index Age Participant's age when the third percutaneous coronary intervention was delivered Number (Decimal) Range: 1-99 years
12414 AH_PCI_INDEX4_AGE Fourth Percutaneous Coronary Intervention Index Age Participant's age when the fourth percutaneous coronary intervention was delivered Number (Decimal) Range: 1-99 years
12415 AH_PCI_INDEX5_AGE Fifth Percutaneous Coronary Intervention Index Age Participant's age when the fifth percutaneous coronary intervention was delivered Number (Decimal) Range: 1-99 years
12416 AH_PCI_INDEX6_AGE Sixth Percutaneous Coronary Intervention Index Age Participant's age when the sixth percutaneous coronary intervention was delivered Number (Decimal) Range: 1-99 years
12295 AH_RA_DX Rheumatoid Arthritis Diagnosis Indicates if the participant has ever been diagnosed with rheumatoid arthritis Coded 0, 1
12296 AH_RA_DX_INC Incident Rheumatoid Arthritis Indicates if the participant was diagnosed with rheumatoid arthritis after the clearance time (6 months after enrollment) and washout time (Oct 1 2000-Oct 1 2001) when AH data was linked. Coded 0, 1
12297 AH_RA_DX_PRV Prevalent Rheumatoid Arthritis Non-incident cases of rheumatoid arthritis Coded 0, 1
12402 AH_RA_INDEX_AGE Rheumatoid Arthritis Index Age Participant's age at the earliest date of hospitalization, or two claim records within 2 years, contributing to case definition of rheumatoid arthritis Number (Decimal) Range: 1-99 years
12247 AH_TIA_DX Transient Ischemic Attack Diagnosis Indicates if the participant has ever been diagnosed with transient ischemic attack Coded 0, 1
12262 AH_TIA_DX_INC Incident Transient Ischemic Attack Indicates if the participant who had no previous CVD surgery (PCI or CABG) or CVD diagnoses before enrollment, was diagnosed with transient ischemic attack after the clearance time (6 months after enrollment) and washout time (Oct 1 2000-Oct 1 2001) when AH data was linked. Coded 0, 1
12263 AH_TIA_DX_PRV Prevalent Transient Ischemic Attack Non-incident cases of transient ischemic attack Coded 0, 1
12391 AH_TIA_INDEX_AGE Transient Ischemic Attack Index Age Participant's age at the earliest date of hospitalization records contributing to case definition of transient ischemic attack Number (Decimal) Range: 1-99 years
12315 AH_UC_DX Ulcerative Colitis Diagnosis Indicates if the participant has ever been diagnosed with ulcerative colitis Coded 0, 1
12316 AH_UC_DX_INC Incident Ulcerative Colitis Indicates if the participant was diagnosed with ulcerative colitis after the clearance time (6 months after enrollment) and washout time (Oct 1 2000-Oct 1 2001) when AH data was linked. Coded 0, 1
12317 AH_UC_DX_PRV Prevalent Ulcerative Colitis Non-incident cases of ulcerative colitis Coded 0, 1
12407 AH_UC_INDEX_AGE Ulcerative Colitis Index Age Participant's age at the earliest date of two hospitalization records within 2 years, or four practitioner claim records within 2 years, or two ambulatory care records within 2 years, contributing to case definition of ulcerative colitis Number (Decimal) Range: 1-99 years
Var ID Var Name Label Description
Var ID Var Name Label Description