Denominator data used in the calculation of incidence rates and hours exposed
| NSW population, 2005* (‘000) | NSW population who reported being in or on the water† (‘000) | NSW population who reported swimming, fishing or rock fishing‡ (‘000) | NSW population who reported swimming§ (‘000) | Person-time hours exposed (hours)¶ | |
| Men | |||||
| 16–24 | 422.7 | 188.1 | 76.3 | 61.5 | 858 |
| 25–34 | 478.9 | 176.2 | 55.8 | 42.9 | 535 |
| 35–44 | 513.0 | 224.6 | 81.5 | 59.3 | 798 |
| 45–54 | 470.0 | 169.2 | 43.4 | 27.5 | 985 |
| 55–64 | 373.5 | 113.1 | 27.0 | 14.0 | 618 |
| 65+ | 415.5 | 83.9 | 13.7 | 8.1 | 643 |
| Women | |||||
| 16–24 | 403.9 | 171.2 | 64.4 | 54.4 | 958 |
| 25–34 | 480.7 | 174.9 | 50.5 | 38.1 | 845 |
| 35–44 | 507.6 | 178.1 | 50.4 | 37.6 | 1044 |
| 45–54 | 468.4 | 130.7 | 26.4 | 17.9 | 683 |
| 55–64 | 366.8 | 89.8 | 16.0 | 10.7 | 860 |
| 65+ | 513.7 | 70.3 | 5.7 | 3.1 | 632 |
Source: NSW Population Health Survey (HOIST). Centre for Epidemiology and Research, NSW Department of Health.
↵* Number of residents in NSW in 2005 from ABS population data.
↵† Number of the NSW population who reported ‘being in or on water, at a swimming pool, beach, lake, river, creek or stream or dam in the last 4 weeks’, estimated based on responses from the NSW Population Health Survey, 2005 and ABS population data for NSW in 2005.
↵‡ Number of the NSW population who reported ‘swimming, fishing or rock fishing in the last 4 weeks’, estimated based on responses from the NSW Population Health Survey, 2005 and ABS population data for NSW in 2005.
↵§ Number of the NSW population who reported ‘swimming in the last 4 weeks’, estimated based on responses from the NSW Population Health Survey, 2005 and ABS population data for NSW in 2005.
↵¶ Hours reported swimming in the last 4 weeks, based on responses from the NSW Population Health Survey, 2005.