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Table 2 Comparison of infection prevalences among 810 participants, stratified by control and intervention communities during baseline and follow-up surveys. Logistic regressions were used to derive odds ratios for comparison of prevalences of control and intervention communities at baseline and follow-up. The prevalence reduction was calculated as baseline prevalence minus follow-up prevalence for control and intervention communities separately

From: Effect of an integrated intervention package of preventive chemotherapy, community-led total sanitation and health education on the prevalence of helminth and intestinal protozoa infections in Côte d’Ivoire

Parasite

Group

Baseline prevalence (%)

OR (95% CI)

P-value

Follow-up prevalence (%)

OR (95% CI)

P-value

Prevalence reduction (%)

Schistosoma spp.

Control

15.58

1

 

5.71

1

 

9.87*

 

Intervention

0.94

0.05 (0.02–0.14)

<  0.001

1.41

0.24 (0.10–0.59)

0.002

-0.47

Schistosoma mansoni

Control

1.04

1

 

1.04

1

 

0.00

 

Intervention

0.94

0.90 (0.22–3.64)

0.888

0.71

0.68 (0.15–3.04)

0.611

0.23

Schistosoma haematobium

Control

14.81

na

 

4.68

1

 

10.13*

 

Intervention

0

na

 

0.71

0.15 (0.04–0.50)

0.002

-0.71

Soil-transmitted helminths

Control

25.71

1

 

7.01

1

 

18.70*

 

Intervention

37.97

1.77 (1.32–2.40)

<  0.001

11.76

1.77 (1.08–2.89)

0.023

26.21*

Hookworm

Control

25.19

1

 

7.01

1

 

18.18*

 

Intervention

36.47

1.70 (1.26–2.31)

0.001

10.59

1.57 (0.95–2.58)

0.076

25.88*

Ascaris lumbricoides

Control

0

na

 

0

na

 

0.00

 

Intervention

0.71

na

 

0.24

na

 

0.47

Trichuris trichiura

Control

1.30

1

 

0

na

 

1.30*

 

Intervention

2.59

2.02 (0.70–5.87)

0.196

1.41

na

 

1.18

Intestinal helminthsa

Control

26.23

1

 

7.79

1

 

18.44*

 

Intervention

38.44

1.77 (1.31–2.38)

<  0.001

12.47

1.69 (1.05–2.70)

0.030

25.97*

Intestinal protozoa

Control

72.99

1

 

70.39

1

 

2.60

 

Intervention

72.00

0.95 (0.70–1.30)

0.753

63.76

0.74 (0.55–0.99)

0.046

8.24*

Entamoeba histolytica/E. dispar

Control

9.87

1

 

9.61

1

 

0.26

 

Intervention

17.65

1.96 (1.29–2.97)

0.002

10.59

1.11 (0.70–1.76)

0.645

7.06*

Entamoeba coli

Control

44.16

1

 

40.52

1

 

3.64

 

Intervention

40.47

0.86 (0.65–1.14)

0.289

39.53

0.96 (0.72–1.27)

0.774

0.94

Entamoeba harmanni

Control

1.30

1

 

4.94

1

 

-3.64*

 

Intervention

1.65

1.27 (0.40–4.04)

0.683

1.18

0.23 (0.05–0.62)

0.004

0.47

Endolimax nana

Control

26.23

1

 

29.61

1

 

-3.38

 

Intervention

29.65

1.18 (0.87–1.61)

0.280

24.00

0.75 (0.55–1.02)

0.072

5.65

Iodamoeba bütschlii

Control

15.58

1

 

8.05

1

 

7.53*

 

Intervention

18.35

1.22 (0.84–1.76)

0.296

7.76

0.96 (0.58–1.60)

0.880

10.59*

Giardia intestinalis

Control

16.36

1

 

14.03

1

 

2.33

 

Intervention

16.94

1.04 (0.72–1.51)

0.826

12.24

0.86 (0.57–1.29)

0.451

4.70*

Chilomastix mesnili

Control

4.42

1

 

4.94

1

 

-0.52

 

Intervention

5.18

1.18 (0.62–2.26)

0.614

5.18

1.05 (0.56–1.97)

0.876

0.00

Blastocystis sp.

Control

34.03

1

 

29.09

1

 

4.94

 

Intervention

35.53

1.07 (0.80–1.43)

0.654

23.53

0.75 (0.55–1.03)

0.073

12.0*

  1. Abbreviations: OR odds ratio, CI confidence interval, na not applicable
  2. aIncludes soil-transmitted helminth and S. mansoni infections
  3. *Significant change between 2011 and 2012 according to McNemar’s test (P <  0.05)