Table 2. Baseline characteristics for divers treated for DCI in Finland 1999–2018. Data are n (%) unless otherwise specified. Information on 'previous DCI' was available for technical: n = 135 and non-technical divers: n = 194, and on 'qualification level ≥ P3' for technical: n = 175 and non-technical divers: n = 132. Percentages for these two parameters are based on these available data. For other parameters information was available from all divers in this study: n = 571 .
| Males | Age mean (range) | Qualification ≥ P3 | Underlying disease | Medical treatment | Smoking | Previous DCI | |
| All | 446 (78) | 36 (18–62) | 307 (60) | 82 (14) | 65 (11) | 51 (9) | 123 (37) |
| Non-technical | 272 (73) | 35 (18–62) | 132 (41) | 56 (15) | 40 (11) | 32 (9) | 65 (34) |
| Technical | 174 (87) | 38 (18–62) | 175 (93) | 26 (13) | 25 (13) | 19 (10) | 58 (43) |