Table 2 |
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|
Summary of epidemiological studies investigating recreational exposure to cyanobacteria |
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|
Country; year study conducted; study author/s; reference |
Study design |
Main outcomes reported |
Study size (n) |
Odds ratio (95% confidence interval) |
|
|
||||
|
UK, 1990 Philipp [86] |
Cross-sectional |
No statistically significant findings |
246 |
|
|
UK, 1990 Philipp & Bates [87] |
Cross-sectional |
No statistically significant findings |
363 |
|
|
UK, 1990 Philipp et al [88] |
Cross-sectional |
No statistically significant findings |
246 |
|
|
Australia, 1992 El Saadi et al [89] |
Case-control |
No statistically significant findings |
Approx. 48 (subjects reporting recreational exposure) |
|
|
Australia, 1995 Pilotto et al [90] |
Prospective cohort |
Increased symptoms at 7 days following exposure to more than 5,000 cyanobacterial cells/mL for >1 hour vs non-bathers |
852 (total) 338 (no prior exposure or symptoms) |
1.3 (0.7–2.6) 3.4 (1.1–10.8) |
|
Australia & USA, 1999–2002 Stewart et al [91] |
Prospective cohort |
Increased reporting of mild respiratory symptoms and any symptom at 3 days following exposure to cyanobacteria cell surface area >12 mm2/mL vs <2.4 mm2/mL |
1,331 (total) 1,137 (no prior symptoms) 1,149 (no prior respiratory symptoms) |
1.7 (1.0–2.9) (any symptom) 2.1 (1.1–4.0) (respiratory symptoms) |
|
|
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|
Stewart et al. Environmental Health: A Global Access Science Source 2006 5:6 doi:10.1186/1476-069X-5-6 |
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