Assessing the Influence of Water Management and Rainfall Seasonality on Water Quality and Intestinal Parasitism in Rural Northeastern Brazil
Table 2
Prevalence of intestinal parasitic infections in relation to drinking water quality, classified as satisfactory or unsatisfactory, in the years 2014, 2015, and 2016 in the rural communities studied in Settlement 25 de Maio, Ceará State, Brazil.
2014
2015
2016
Water Quality (n=151)
Water Quality (n=184)
Water Quality (n=199)
Intestinal Parasitoses
Satisfactory ()
Unsatisfactory ()
p- value
Satisfactory ()
Unsatisfactory ()
p- value
Satisfactory ()
Unsatisfactory ()
p- value
Giardia intestinalis
6/68 (8.8%)
3/83 (3.6%)
0.300
28/131 (21.4%)
9/53 (17.0%)
0.594
6/57 (10.5%)
8/141(5.7%)
0.463
Iodamoeba butschlii
_
_
_
_
_
_
7/57 (12.3%)
4/141 (2.8%)
0.063
Entamoebahistolytica/dispar
6/68 (8.8%)
3/83 (3.6%)
0.300
11/131 (8.4%)
2/53 (3.8%)
0.353
15/57 (26.3%)
28/141 (19.9%)
0.528
Entamoeba coli
7/68 (10.3%)
1/83 (1.2%)
0.022
19/131 (14.5%)
8/53 (15.1%)
1
17/57 (29.8%)
36/141 (25.5%)
0.688
Endolimax nana
_
_
_
7/131 (5.3%)
1/53 (1.8%)
0.441
15/57 (26.3%)
31/141 (22.0%)
0.694
Ascaris lumbricoides
24/68 (35.3%)
10/83 (12,1%)
0.001
38/131 (29.0%)
17/53 (32.1%)
0.723
4/57 (7.0%)
2/141 (1.4%)
0.111
The classification of water quality as satisfactory or unsatisfactory followed the parameters of water quality presented in Ordinance 2914 (December 12, 2011) of Brazil’s Ministry of Health.
