Table.

Univariate analysis of risk factors among participants attending events at the activity pool at a private swimming facility (n=157)*, Vermont, 30 January 2006 to 2 February 2006

RR, Risk ratio; CI, confidence interval.

^*In total, 160 persons were at the activity pool, however, information on pool exposures was missing for three persons. The analysis was restricted to the 157 persons with complete data.

^†Pool behaviors were assessed among the 127 persons who went into the activity pool.