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Table 3 Adjusted odds ratios for earache at marine and fresh water sites

From: The incidence and health burden of earaches attributable to recreational swimming in natural waters: a prospective cohort study

 

All sites

Marine

Fresh

 

AOR

95% CI

AOR

95% CI

AOR

95% CI

Head immersion swimming

1.67****

1.35,2.07

1.56***

1.21,2.00

2.10****

1.48,2.99

Age (ref. 20-50)

      

Age 0–1

2.02**

1.28,3.21

1.55

0.84,2.88

3.00**

1.48,6.07

Age 2–5

1.13

0.83,1.53

1.29

0.90,1.84

0.79

0.45,1.39

Age 6–10

1.27*

1.00,1.61

1.41*

1.07,1.87

0.94

0.61,1.45

Age 11–19

0.88

0.70,1.11

1.00

0.77,1.31

0.61*

0.39,0.96

Over 60

0.76+

0.57,1.01

0.82

0.59,1.13

0.52+

0.25,1.07

Non-white race

1.24

0.95,1.62

1.33**

1.08,1.63

1.11

0.73,1.68

Female

1.29**

1.10,1.52

1.27*

1.06,1.54

1.35+

1.00,1.83

Unfamiliar animal contact

1.57***

1.23,2.00

1.72***

1.28,2.31

1.31

0.86,2.00

Other swimming1

1.60****

1.36,1.89

1.61****

1.33,1.96

1.58**

1.16,2.16

Used insect repellent

1.41**

1.09,1.81

1.44**

1.11,1.88

1.21

0.53,2.77

Allergies

1.61****

1.33,1.95

1.76****

1.41,2.21

1.31

0.91,1.88

Asthma

1.46**

1.13,1.87

1.38*

1.03,1.86

1.71*

1.05,2.80

  1. + p <0.1, ∗ p <0.05, ∗∗ p <0.01, ∗∗∗ p <0.001, ∗∗∗∗ p <0.0001.
  2. AOR = Adjusted Odds Ratio, 95% CI = 95% Confidence Interval.
  3. 1Other head immersion swimming in the 1-week prior to the beach visit. Estimates from a logistic regression model with a random intercept for beach.
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Environmental Health

ISSN: 1476-069X