Morphological Characterization of Emerging Cercariae among Lymnaeid Snails from Barangay Cawongan, Padre Garcia, Batangas, Philippines

Table 4

Counts of snails with encysted forms based on number of light exposures.

Number of Light Exposures	Number and %; Snails with Encysted Form; (n=150)	Odds Ratio (95% CI)
One	3 (2.0%)	-
Two	8 (5.3%)	2.76 (0.72 – 10.62)
Three	21 (14.0%)	7.98 (2.33 – 27.36)
Four	21 (14.0%)	7.98 (2.33 – 27.36)
Five	26 (17.3%)	10.27 (3.04 – 34.76)

Values expressed as counts (%).
Each exposure group was composed of a total of 150 snails from 5 months of collection (n=30 snails/exposure/month).
Number of light exposures represents the number of times a given batch of snails received a 6-hour light exposure with an average ~1000 lux light intensity.
Values with the same letter are not significantly different from each other (p>0.001). Values with different letters are significantly different from each other (p<0.001).