Canadian COVID-19 Antibody and Health Survey - Follow-up Questionnaire, May 2023

COVID-19 infections (INF) - Question identifier:INF_R05

Thank you for participating in this follow-up survey. The information you provide will be used to measure the health impacts of COVID-19 on Canadians, including post-COVID-19 conditions, and guide Canada's ongoing response. Since the pandemic started more than three years ago in 2020, some information may be difficult to remember. Please do your best to answer the questions.

COVID-19 infections (INF) - Question identifier:INF_Q05

Since the start of the COVID-19 pandemic, how many different COVID-19 infections did you think or know you had?

Min = 0; Max = 20

COVID-19 infections (INF) - Question identifier:INF_Q10A

When did you experience your[first/] COVID-19 infection?
Time of Month

• 1: Early
• 2: Middle
• 3: Late

COVID-19 infections (INF) - Question identifier:INF_Q10B

When did you experience your[first/] COVID-19 infection?
Month

• 01: January
• 02: February
• 03: March
• 04: April
• 05: May
• 06: June
• 07: July
• 08: August
• 09: September
• 10: October
• 11: November
• 12: December

COVID-19 infections (INF) - Question identifier:INF_Q10C

When did you experience your[first/] COVID-19 infection?
Year

• 1: 2020
• 2: 2021
• 3: 2022
• 4: 2023

COVID-19 infections (INF) - Question identifier:INF_Q15A

When did you experience your most recent COVID-19 infection?
Time of Month

• 1: Early
• 2: Middle
• 3: Late

COVID-19 infections (INF) - Question identifier:INF_Q15B

When did you experience your most recent COVID-19 infection?
Month

• 01: January
• 02: February
• 03: March
• 04: April
• 05: May
• 06: June
• 07: July
• 08: August
• 09: September
• 10: October
• 11: November
• 12: December

COVID-19 infections (INF) - Question identifier:INF_Q15C

When did you experience your most recent COVID-19 infection?
Year

• 1: 2020
• 2: 2021
• 3: 2022
• 4: 2023

Symptoms (SYM) - Question identifier:SYM_R05

[Please answer the following questions based on your COVID-19 infection./Please answer the following questions based on your most recent COVID-19 infection.]

Symptoms (SYM) - Question identifier:SYM_Q05

In the first four weeks after you thought or knew that you had COVID-19, did you experience any of the following new or worsening symptoms?

• 01: Fever
• 02: Coughing
• 03: Sore throat
• 04: Sneezing
• 05: Shortness of breath or difficulty breathing
• 06: Chills
• 07: Night sweats
• 08: Fatigue, tiredness or weakness
• 09: Loss of smell or taste
• 10: Runny nose or nasal congestion
• 11: Headache
• 12: Muscle or joint pain
• 13: Abdominal pain
• 14: Chest pain, pressure, or tightness
• 15: Nausea or vomiting
• 16: Diarrhea
• 17: Conjunctivitis (i.e., red eyes)
• 18: Skin rash
• 19: Dizziness or light-headedness
• 20: Loss of appetite
• 21: Confusion
• 22: Other
• 23: I did not experience any symptoms in the first four weeks

Symptoms (SYM) - Question identifier:SYM_Q10

In the first four weeks after you thought or knew that you had COVID-19, how severe did your symptoms get?

• 1: Mild symptoms - did not affect my daily life
• 2: Moderate symptoms - I was unable or had difficulty doing my usual activities around the house (e.g., could not prepare meals or do household chores)
• 3: Severe symptoms - I was bedridden or unable to look after myself
• 4: Very severe symptoms - I was admitted to the hospital because of my symptoms

Symptoms (SYM) - Question identifier:SYM_R10

Some people may experience more than one COVID-19 infection. When answering the following questions, think about all the times you experienced COVID-19.

Symptoms (SYM) - Question identifier:SYM_Q15

Three or more months after you thought or knew that you had COVID-19, did you experience any symptoms that could not be explained by anything else?

• 1: Three months have not passed since I thought or knew that I had COVID-19 for the first time
• 2: Yes
• 3: No

Symptoms (SYM) - Question identifier:SYM_Q20

Since the start of the pandemic, did you experience any new unexplained symptoms lasting two or more months?

• 1: Yes
• 2: No

Symptoms (SYM) - Question identifier:SYM_Q25

[For two or more months since the start of the pandemic/Three or more months after you thought or knew that you had COVID-19], what [symptoms/new unexplained symptoms] did you experience?

• 01: Fatigue, tiredness or loss of energy
• 02: Difficulty thinking, concentrating, problem solving, or remembering things (brain fog)
• 03: Shortness of breath or difficulty breathing
• 04: Coughing
• 05: Fever
• 06: Chest pain, pressure, or tightness
• 07: Stress or anxiety
• 08: Sadness, pessimism, hopelessness or depression
• 09: General pain or discomfort (e.g., muscular, abdominal, joint pain
  Exclude chest pain or headache.)
• 10: Symptoms relating to the heart (e.g., fast, pounding or irregular heartbeat)
• 11: Headache
• 12: General weakness
• 13: Loss of smell or taste
• 14: Decreased hearing or hearing loss
• 15: Tinnitus (ringing or other noises in one or both ears)
• 16: Sleep disturbances or difficulties (e.g., insomnia)
• 17: Dizziness or light-headedness
• 18: Weight loss or gain
• 19: Changes in menstruation/erectile dysfunction
• 20: Feeling worse after physical or mental activity (e.g., thinking, concentrating, studying, learning)
• 21: Feeling worse when standing up and better when sitting or lying down
• 22: Other

Symptoms (SYM) - Question identifier:SYM_Q30

Do you continue to experience any of these symptoms?

• 1: Yes
• 2: No

Symptoms (SYM) - Question identifier:SYM_Q35

For approximately how many months did you experience one or more of these symptoms?

Min = 0; Max = 99

Symptoms (SYM) - Question identifier:SYM_Q40

When your symptoms [are/were] at their worst, how often [do/did] you experience them?

• 1: Everyday
• 2: Almost every day
• 3: At least once a week
• 4: At least once a month
• 5: Less than once a month

Symptoms (SYM) - Question identifier:SYM_Q45

When your symptoms [are/were] at their worst, how often [do/did] they limit your daily activities?

• 1: Never
• 2: Rarely
• 3: Sometimes
• 4: Often
• 5: Always

Symptoms (SYM) - Question identifier:SYM_Q50

Overall, since you started having these symptoms, how have they changed?

• 1: Improved
• 2: Worsened
• 3: Stayed the same

Symptoms (SYM) - Question identifier:SYM_R15

The following questions refer only to [symptoms you experienced three or more months after a COVID-19 infection./any new unexplained symptoms that you experienced for two or more months since the start of the pandemic.]

Symptoms (SYM) - Question identifier:SYM_Q55

[Three or more months after experiencing COVID-19, what/What] impact did your symptoms have on your ability to attend work or school?

• 1: My symptoms caused me to miss days of work or school
• 2: I have been unable to return to work or school as a result of my symptoms
• 3: I was able to return to work or school but had to modify my tasks as a result of my symptoms
• 4: I was only able to return to work or school part-time as a result of my symptoms (i.e., I had to reduce my hours or days of work or school)
• 5: I had to change jobs as a result of my symptoms
• 6: My symptoms did not affect my ability to attend work or school
• 7: I was not working or attending school prior to [contracting COVID-19/developing these symptoms]

Symptoms (SYM) - Question identifier:SYM_Q55A

How many days of school or work did you miss as a result of your symptoms?

Min = 0; Max = 9999

Symptoms (SYM) - Question identifier:SYM_Q60A

What kind of business, industry or service are you employed or self-employed in?

Long Answer Length = 80

Symptoms (SYM) - Question identifier:SYM_Q60B

What kind of business, industry or service are you employed or self-employed in?

• 1: Not applicable - was never employed or no longer employed

Symptoms (SYM) - Question identifier:SYM_Q65

Did you apply for disability benefits or workers' compensation as a result of your symptoms?

• 1: Yes
• 2: No, I did not apply
• 3: No, I did not qualify for disability benefits or workers' compensation

Symptoms (SYM) - Question identifier:SYM_Q65A

Did you end up receiving any disability benefits or workers' compensation as a result of your symptoms?

• 1: Yes
• 2: No

Symptoms (SYM) - Question identifier:SYM_R20

The following questions deal with the different kinds of help you received, or thought you needed, to manage your symptoms.

Symptoms (SYM) - Question identifier:SYM_Q70

Did you consult with any health care providers or services about your symptoms?

• 1: Yes
• 2: No

Symptoms (SYM) - Question identifier:SYM_Q70A

Which health care providers or services did you consult about your symptoms?

• 01: Family doctor or nurse practitioner
• 02: Specialist medical doctor
• 03: Post-COVID-19 condition clinic
• 04: Emergency department
• 05: Psychiatrist, psychologist, or psychotherapist
• 06: Rehabilitation professionals (e.g., physiotherapist, kinesiologist)
• 07: Alternative medicine specialist (e.g., acupuncture, healer, osteopath, homeopath, naturopath, chiropractor)
• 08: Home care nurse or home care worker
• 09: Massage therapist
• 10: Occupational therapist
• 11: Pharmacist
• 12: Respiratory therapist
• 13: Social worker
• 14: Sex therapist
• 15: Other

Symptoms (SYM) - Question identifier:SYM_Q70B

What is the reason you did not consult with any health care providers or services about your symptoms?

• 1: I did not think my symptoms required health care providers or services
• 2: I had difficulties accessing health care providers or services
• 3: Other reasons

Symptoms (SYM) - Question identifier:SYM_Q75

Did you experience any of the following difficulties getting the health care support or services you needed for your symptoms?

• 01: Difficulty getting a referral
• 02: One or more of your appointments was cancelled, rescheduled or delayed due to the COVID-19 pandemic
• 03: One or more of your appointments was cancelled, rescheduled or delayed due to other reasons (Exclude any reason related to the COVID-19 pandemic.)
• 04: Waited too long between booking appointment and health care service
• 05: Service not available in your area
• 06: Transportation (e.g., travel restrictions, lack of public transportation)
• 07: Cost
• 08: Quarantine rules or office closures
• 09: Service not available in the official language of your choice
• 10: Lack of availability of culturally appropriate health services
• 11: Lack of First Nations, Métis or Inuit traditional medicines, healing or wellness practices
• 12: Other
• 13: I did not experience difficulties getting the health care support or services I needed

Symptoms (SYM) - Question identifier:SYM_Q75B

Did you experience any of the following difficulties getting the health care support or services you needed for your symptoms?

• 01: Difficulty getting a referral
• 02: One or more of your appointments was cancelled, rescheduled or delayed due to the COVID-19 pandemic
• 03: One or more of your appointments was cancelled, rescheduled or delayed due to other reasons (Exclude any reason related to the COVID-19 pandemic.)
• 04: Waited too long between booking appointment and health care service
• 05: Service not available in your area
• 06: Transportation (e.g., travel restrictions, lack of public transportation)
• 07: Cost
• 08: Quarantine rules or office closures
• 09: Service not available in the official language of your choice
• 10: Lack of availability of culturally appropriate health services
• 11: Lack of First Nations, Métis or Inuit traditional medicines, healing or wellness practices
• 12: Other

Symptoms (SYM) - Question identifier:SYM_Q80

Did you receive the treatment, services, or support you needed to manage or address your symptoms?

• 1: I did not receive treatment, services or support for any of my symptoms
• 2: I received treatment, services, or support for some of my symptoms
• 3: I received treatment, services, or support for all my symptoms

Symptoms (SYM) - Question identifier:SYM_Q85

[[At any point after your first COVID-19 infection,/Since the start of the pandemic,] did a health professional diagnose you for the first time with any of the following health conditions?

• 01: Cancer
• 02: Asthma
• 03: Chronic lung condition (e.g., emphysema, chronic bronchitis, fibrosis)
• 04: Sleep apnea or other sleeping disorders
• 05: Obesity
• 06: Diabetes (Exclude gestational diabetes.)
• 07: High blood pressure
• 08: Heart arrythmia (e.g., too slow, too quick or irregular heartbeat)
• 09: Chronic heart disease
• 10: Stroke or the effects of a stroke
• 11: Chronic neurological disorder
• 12: Alzheimer's disease or other dementia
• 13: Mental health condition (e.g., depression, anxiety, mood disorder)
• 14: Post-traumatic stress disorder
• 15: Post COVID-19 condition or Long COVID
• 16: Chronic kidney disease
• 17: Kidney failure
• 18: Liver disease (e.g., chronic hepatitis)
• 19: Chronic blood disorder
• 20: Osteoporosis
• 21: Back problems
• 22: Arthritis (Include gout.)
• 23: Myalgic encephalomyelitis or Chronic fatigue syndrome (ME/CFS)
• 24: Fibromyalgia
• 25: Urinary incontinence
• 26: Bowel disorder (e.g., Crohn's disease, ulcerative colitis, irritable bowel syndrome (IBS))
• 27: A weakened immune system (e.g., due to disease or medication)
• 28: Other autoimmune disorder (e.g., hyperthyroidism, hypothyroidism, lupus, psoriasis, vasculitis)
• 29: Other
• 30: None of the above

Medication use (MEU) - Question identifier:MEU_Q05

During any of the times you experienced COVID-19, did you take any prescription medication specifically developed for the treatment of COVID-19 infections?

• 1: Yes
• 2: No
• 3: Don't know

Medication use (MEU) - Question identifier:MEU_Q05A

In your opinion, how effective was the medication?

• 1: Very effective
• 2: Effective
• 3: Somewhat effective
• 4: Not very effective
• 5: Not at all effective

COVID-19 vaccination (VAC) - Question identifier:VAC_Q05

Since the start of the COVID-19 pandemic, how many COVID-19 vaccine doses have you received (e.g., Johnson & Johnson, Moderna, Pfizer-BioNTech, AstraZeneca, Novavax)?

Min = 0; Max = 20

COVID-19 vaccination (VAC) - Question identifier:VAC_Q10A

When did you receive your most recent COVID-19 vaccine dose?
Month

• 01: January
• 02: February
• 03: March
• 04: April
• 05: May
• 06: June
• 07: July
• 08: August
• 09: September
• 10: October
• 11: November
• 12: December

COVID-19 vaccination (VAC) - Question identifier:VAC_Q10B

Year

• 1: 2020
• 2: 2021
• 3: 2022
• 4: 2023

Data sharing agreements (DSA) - Question identifier:DSA_R01

To avoid duplication of surveys, Statistics Canada may enter into agreements to share the data from this survey and from the Canadian COVID-19 Antibody and Health Survey you previously completed, including name, address, telephone number and health card number, with provincial and territorial ministries of health, Health Canada and the Public Health Agency of Canada. For Quebec residents, Statistics Canada may also enter into an agreement with the Institut de la statistique du Québec to share the same information.

The Institut de la statistique du Québec and provincial ministries of health may make this data available to local health authorities. Local health authorities will not receive any identifiers.

Data sharing agreements (DSA) - Question identifier:DSA_Q01

Do you agree to share your information?

These organizations have agreed to keep the data confidential and use it only for statistical purposes. Do you agree to share the data provided?

• 1: Yes
• 2: No