Table 4 Adjusted Odds Ratios for illness risk among swimmers for a 1 log₁₀ increase in indicator density¹

Enterococcus CFU²

   8:00 AM

1.20

0.91-1.59

1.33

0.92-1.91

1.04

0.73-1.46

   11:00 AM

1.16

0.92-1.45

1.19

0.89-1.6

1.13

0.88-1.46

   Daily

1.16

0.84-1.61

1.22

0.81-1.86

1.11

0.75-1.63

Enterococcus ${\text{CCE}}_{\Delta }^3$

   8:00 AM

1.94

1-3.8

2.57

1.15-5.73

1.46

0.65-3.29

   11:00 AM

2.08

1.18-3.67

2.54

1.29-4.99

1.62

0.86-3.04

   Daily

2.67

1.34-5.34

3.57

1.57-8.13

1.83

0.76-4.39

Bacteroidales ${\text{CCE}}_{\Delta }^3$

   8:00 AM

1.61

1.21-2.16

1.69

1.11-2.58

1.13

0.84-1.52

   11:00 AM

1.43

1.02-1.99

1.40

0.92-2.14

0.93

0.67-1.29

   Daily

1.67

1.16-2.39

1.68

1.08-2.61

0.96

0.66-1.38

Fecal Bacteroides ${\text{CCE}}_{\Delta }^3$

   8:00 AM

1.30

0.99-1.69

1.34

0.94-1.91

1.12

0.81-1.54

   11:00 AM

1.15

0.91-1.45

1.14

0.84-1.54

0.93

0.72-1.2

   Daily

1.27

0.98-1.64

1.26

0.9-1.75

0.95

0.69-1.31

Clostridia sp. ${\text{CCE}}_{\Delta }^3$

   8:00 AM

1.81

0.96-3.39

1.43

0.67-3.08

1.05

0.56-1.95

   11:00 AM

1.32

0.68-2.56

1.46

0.6-3.55

0.93

0.54-1.61

   Daily

1.87

0.75-4.67

1.68

0.56-5.05

1.24

0.49-3.16

Enterococcus ${\text{CCE}}_{\Delta \Delta }^3$

   8:00 AM

1.57

0.83-2.94

2.33

1.06-5.12

1.45

0.69-3.02

   11:00 AM

2.11

1.27-3.52

2.97

1.63-5.42

1.57

0.79-3.11

   Daily

2.56

1.29-5.11

4.42

1.96-9.94

1.88

0.79-4.5

Bacteroidales ${\text{CCE}}_{\Delta \Delta }^3$

   8:00 AM

1.71

1.23-2.36

1.87

1.16-3

1.13

0.82-1.55

   11:00 AM

1.51

1.05-2.17

1.56

0.97-2.5

0.86

0.6-1.22

   Daily

1.91

1.26-2.9

1.96

1.11-3.47

0.88

0.59-1.31

Fecal Bacteroides ${\text{CCE}}_{\Delta \Delta }^3$

   8:00 AM

1.29

0.96-1.74

1.38

0.92-2.07

1.15

0.83-1.61

   11:00 AM

1.14

0.88-1.48

1.14

0.82-1.6

0.93

0.71-1.22

   Daily

1.26

0.94-1.68

1.26

0.86-1.86

0.96

0.69-1.33

Clostridia sp. ${\text{CCE}}_{\Delta \Delta }^3$

   8:00 AM

1.94

1.16-3.23

1.62

0.86-3.07

0.99

0.56-1.74

   11:00 AM

1.97

1.03-3.77

2.21

0.96-5.13

0.82

0.46-1.46

   Daily

2.76

1.29-5.89

2.45

0.96-6.29

1.05

0.47-2.32