Skip to main content

Advertisement

Table 6 Illness by exposure to Enterococcus CFU, above and below EPA guidelines

From: Rapidly measured indicators of recreational water quality and swimming-associated illness at marine beaches: a prospective cohort study

  Number ill % AOR1(95% CI) AOR2(95% CI)
GI
   Non-swimmer 159 5.86 ref  
   Swimmer-below 35 CFU 171 7.7   ref
   Swimmer-above 35 CFU 36 10.75 1.52(0.96-2.4) 1.2(0.75-1.91)
   Total 366 6.94   
Diarrhea
   Non-swimmer 100 3.69 ref  
   Swimmer-below 35 CFU 108 4.87   ref
   Swimmer-above 35 CFU 28 8.36 1.78(1.02-3.09) 1.4(0.8-2.43)
   Total 236 4.48   
URI
   Non-swimmer 109 4.07   
   Swimmer-below 35 CFU 116 5.3   ref
   Swimmer-above 35 CFU 27 8.28 1.78(1.02-3.11) 1.35(0.77-2.38)
   Total 252 4.85   
Rash
   Non-swimmer 68 2.49 ref  
   Swimmer-below 35 CFU 92 4.11   ref
   Swimmer-above 35 CFU 8 2.36 1.12(0.47-2.68) 0.68(0.28-1.63)
   Total 168 3.17   
Earache
   Non-swimmer 35 1.26 ref  
   Swimmer-below 35 CFU 37 1.63   ref
   Swimmer-above 35 CFU 10 2.93 2.37(1.06-5.31) 1.8(0.84-3.83)
   Total 82 1.53   
Eye irritation
   Non-swimmer 86 3.07 ref  
   Swimmer-below 35 CFU 60 2.62   ref
   Swimmer-above 35 CFU 12 3.53 1.09(0.56-2.15) 1.3(0.65-2.59)
   Total 158 2.91   
  1. 1: Adjusted Odds Ratio: Swimmers Above 35 CFU vs. non-swimmers
  2. 2: Adjusted Odds Ratio: Swimmers above 35 CFU vs. swimmers below 35 CFU
  3. GI: Gastrointestinal illness; URI: Upper Respiratory Illness; 95% CI: 95% Confidence interval