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Table 6 Multivariate logistic regression analysis for physicochemical parameters affecting PI

From: Environmental health aspects and microbial infections of the recreational water

Physicochemical parameters

PI

P

OR (95%CI)

Depth of sampling

0.077

5.566 (0.832–37.230)

Frequency of cleaning the swimming pools

0.047 *

33.565 (1.049–1074.426)

Flow rate (m 3 /min)

0.001 *

30.812 (4.104–231.342)

Cl 2

0.015 *

10.807 (1.586–73.618)

TDS

0.024 *

59.508 (1.714–2065.625)

Total Hardness

0.145

3.530 (0.646–19.284)

  1. All variables with p < 0.05 following univariate analysis was included in the multivariate analysis.
  2. OR Odd`s ratio, CI Confidence interval, LL Lower limit, UL Upper Limit, *: Statistically significant at p < 0.05