Tuominen Appendix 1-3 52(2)

Questionnaire for demographic data

1. Research ID

2. Age

3. Height

4. Weight

5. Do you smoke or use other nicotine products?

• Yes
• No

6. Have you had a hyperbaric (HBO) treated decompression illness at some point in your diving career?

• Yes
• No

7. What is your diving experience in years?

8. What is your number of dives altogether?

9. What has been the deepest dive in your diving career?

10. Main diving system?

• OC
• CC

11. Highest certification for cave/mine?

• Cavern
• Intro-to-cave
• Full cave
• Mine 1
• Mine 2
• Other, what?

12. Highest diving certification?

• MOD1
• MOD2
• MOD3
• Rec Trimix
• Normoxic Trimix
• Full Trimix
• Other, what?

13. Are you an active instructor?

• Yes
• No

 This questionnaire was filled out every two months. The first period was 1.7.2020-30.9.2020.

1. Research ID?
2. How many dives have you done to depths from 0-20m?
3. How many dives have you done to depths from 20-40m?
4. How many dives have you done to depths from 40-60m?
5. How many dives have you done to depths from 60-80m?
6. How many dives have you done to depths over 80m?
7. How deep has the deepest dive been (in meters)?
8. What is the total dive time after these two months (in minutes)?
9. Other comments?

Questionnaire for decompression illness (DCI) symptoms

1. Research ID?

2. The date of the event?

3. Diving system used?

• OC
• CC

4. Maximum depth of the dive (in meters)?

5. Average depth of the dive (in meters)?

6. Dive time (in minutes)?

7. GF, if known?

8. Gas / diluent?

9. Symptoms (you may choose more than one option)

• tingling / itching
• skin rash, heat sensation, swelling
• joint pain
• abnormal pain in muscles
• fatigue
• headache
•  vertigo
• numbness
• shortness of breath / heavy breathing
• visual disturbances
• hearing impairment
• bladder symptoms
• verbal disturbances
• other?

10. Possible contributing factors (you may choose more than one option)

• dehydration
• ascent rate
• shortened decos
• cold or wet
• tiredness
• ceiling violation
• multiple dives a day
• multiple days of diving (2-3)
• multiple days of diving (> 4)
• nothing
• Other?

11. When did the symptoms start?

12. What did you do after noticing DCI symptoms? You may choose more than one option.

• nothing
• used 100% normobaric oxygen
• hydration orally
• rest
• in water recompression
• recompression in chamber
• other?

13. What was the outcome after possible treatment?

• symptoms gone
• symptoms decreased
• symptoms remained

14. Additional comments