Table 2. Diving history and characteristics of survey respondents; n = number responding to the question; median and interquartile range (IQR) shown; IHD − ischaemic heart disease; nr − not recorded; >30 m – dives deeper than 30 m .
| Group | IHD | Arrhythmia | Septal defect | Cardiac (other) | Hypertension | Diabetes | Asthma | Pneumothorax | Total |
| (n = 31) | (n = 20) | (n = 31) | (n = 10) | (n = 127) | (n = 25) | (n = 40) | (n = 5) | (n = 289) | |
| Years diving | |||||||||
| All | 19 (11, 30) | 8.8 (5, 25) | 10 (9.5, 24) | 10 (10, 16) | 15 (7, 24.5) | 14 (7, 25) | 8 (5, 11) | 13 (6, 13) | 12 (6, 22) |
| Males | 13 (5, 25) | ||||||||
| Females | 10 (7, 17) | ||||||||
| Total dives | |||||||||
| All | 600 (200, 1,000) | 550 (168, 2,300) | 440 (300, 1,000) | 250 (124, 400) | 600 (370, 1,500) | 500 (193, 1,200) | 100 (80, 150) | 1600 (900, 2,300) | 350(150, 800) |
| Males | 1000 (388, 2,125) | ||||||||
| Females | 400 (225, 1,000) | ||||||||
| Dives since diagnosis | |||||||||
| All | 165 (80, 337) | 221 (100, 500) | 58 (10, 145) | nr | 151 (76, 400) | 200 (89, 400) | 220 (115, 344) | 60 (20, 103) | 150 (60,350) |
| Males | nr | ||||||||
| Females | nr | ||||||||
| Dives past year | |||||||||
| All | 31 (20, 73) | 30 (19, 87) | 30 (20, 85) | 25 (15, 30) | 30 (20, 50) | 40 (25, 50) | 30 (15, 50) | 40 (30, 40) | 30 (20, 50) |
| Males | 30 (28, 58) | ||||||||
| Females | 35 (20, 50) | ||||||||
| >30 m depth(%) | |||||||||
| All | 10 (5, 38) | 5 (1, 40) | 10 (3.5, 40) | 3 (1, 18) | 9 (5, 24) | 5 (5, 15) | 10 (2, 30) | 18 (5, 30) | 10 (3, 25) |
| Males | 10 (5, 30) | ||||||||
| Females | 5 (2, 20) | ||||||||
| Decompression | |||||||||
| All | 2 (0, 5) | 0 (0, 13) | 2.5 (1, 20) | 0 (0, 1) | 1 (0, 5) | 2 (0, 10) | 1.5 (0, 5) | 2 (1, 20) | 1 (0, 5) |
| Males | 1 (0, 5) | ||||||||
| Females | 0 (0, 3) | ||||||||
| Technical | |||||||||
| All | 0 (0, 3) | 0 (0, 18) | 2 (0, 30) | 0 (0, 0) | 0 (0, 5) | 0 (0, 2) | 0 (0, 0) | 1 (1, 20) | 0 (0, 5) |
| Males | 0 (0, 5) | ||||||||
| Females | 0 (0, 4) | ||||||||
| Repetitive | |||||||||
| All | 70 (30, 90) | 60 (50, 90) | 40 (25, 90) | 70 (9, 94) | 70 (22, 90) | 80 (24, 100) | 90 (60, 100) | 81 (70, 94) | 75 (25, 95) |
| Males | 75 (25, 90) | ||||||||
| Females | 80 (40, 95) |