. Author manuscript; available in PMC: 2015 Mar 4.

Published in final edited form as: Epidemiol Infect. 2011 Sep 27;140(8):1439–1445. doi: 10.1017/S0950268811000987

Table 2. GLMM results and summary statistics for pools by category†.

Pool Category	Total	Mean / County	Number of Counties	Marginal Effect (95% Confidence Interval)	p-value
Big (>= 1500 sq. ft.)	544	5.49	98	1.04 (0.99, 1.10)	0.103
Small (< 1500 sq. ft.)	753	7.61	79	1.00 (0.99, 1.02)	0.842
Spa	417	4.21	70	1.01 (0.97, 1.04)	0.673
Wading	268	2.71	83	1.08 (1.01, 1.16)	0.023*
Waterslide	249	2.52	78	1.07 (0.97, 1.19)	0.178