Table 2 Odds ratio estimated for being positive in different observed intestinal protozoa among sexes, age groups, habitats, and seasons. The chi-square test was performed on 2 × 2 tables yet for the variables with more than two variants, a binary logistic regression test was used to estimate the P value

Parasite

Total

Male

Female

0–9

10–19

20–29

30–39

40–49

50–59

60–69

70–79

> 80

Urban

Rural

Spring

Summer

Fall

Winter

E. nana n (%)

Negative

2803 (98.5)

2142 (98.5)

661 (98.5)

261 (98.9)

349 (98.9)

703 (99.3)

633 (98.1)

452 (97.8)

297 (97.4)

86 (100)

19 (100)

3 (100)

2126 (98.5)

677 (98.7)

109 (100)

898 (98.5)

1152 (99.0)

644 (97.6)

Positive

42 (1.5)

32 (1.5)

10 (1.5)

3 (1.1)

4 (1.1)

5 (0.7)

12 (1.9)

10 (2.2)

8 (2.6)

0 (0)

0 (0)

0 (0)

33 (1.5)

9 (1.3)

0 (0)

14 (1.5)

12 (1.0)

16 (2.4)

Total

2845

2174

671

264

353

708

645

462

305

86

19

3

12,159

686

109

912

1164

660

OR

0.971

1

1

0.929

0.605

1.603

1.734

2.149

-

-

-

1.168

1

-

0.635

0.448

1

P

0.972

*

0.924

0.495

0.47

0.41

0.266

-

-

-

0.682

-

0.222

0.039

*

E. coli n (%)

Negative

2821 (99.2)

2159 (99.3)

662 (98.7)

262 (99.2)

351 (99.4)

707 (99.9)

638 (98.9)

457 (98.9)

298 (97.7)

86 (100)

19 (100)

3 (100)

2137 (99.0)

684 (99.7)

109 (100)

902 (98.9)

1155 (99.2)

655 (99.2)

Positive

24 (0.8)

15 (0.7)

9 (1.3)

2 (0.8)

2 (0.6)

1 (0.1)

7 (1.1)

5 (1.1)

7 (2.3)

0 (0)

0 (0)

0 (0)

22 (1.0)

2 (0.3)

0 (0)

10 (1.1)

9 (0.8)

5 (0.8)

Total

2845

2174

671

264

353

708

645

462

305

86

19

3

2159

686

109

912

1164

660

OR

0.510

1

1

0.749

0.181

1.419

1.398

2.989

-

-

-

3.521

1

-

1.491

1.39

1

P

0.107

*

0.775

0.164

0.666

0.693

0.179

-

-

-

0.070

-

0.470

0,829

*

Blastocystis spp. n (%)

Negative

2727 (95.9)

2087 (96)

640 (95.4)

261 (98.9)

337 (95.5)

680 (96.0)

619 (96.0)

438 (94.8)

288 (94.4)

82 (95.3)

19 (100)

3 (100)

2070 (95.9)

657 (95.8)

105 (96.3)

888 (97.4)

1118 (96.0)

616 (93.3)

Positive

118 (4.1)

87 (4.0)

31 (4.6)

3 (1.1)

16 (4.5)

28 (4.0)

26 (4.0)

24 (5.2)

17 (5.6)

4 (4.7)

0 (0)

0 (0)

89 (4.1)

29 (4.2)

4 (3.7)

24 (2.6)

46 (4.0)

44 (6.7)

Total

2845

2174)

671

26

353

708

645

462

305

86

19

3

2159

686

109

912

1164

660

OR

0.86

1

1

4.319

3.804

3.909

4.893

5.365

4.718

-

-

0.973

1

0.518

0.368

0.614

1

P

0.483

*

0.022

0.029

0.027

0.01

0.008

0.046

-

-

0.904

0.218

< 0.001

0.026

*

G. lamblia n (%)

Negative

2832 (99.5)

2162 (99.4)

670 (99.9)

262 (99.2)

352 (99.7)

705 (99.6)

643 (99.7)

459 (99.4)

304 (99.7)

85 (98.8)

19 (100)

3

(100)

2148 (99.5)

684 (99.7)

109 (100)

904 (99.1)

1164 (100)

655 (99.2)

Positive

13 (0.5)

12 (0.6)

1 (0.1)

2 (0.8)

1 (0.3)

3 (0.4)

2 (0.3)

3 (0.6)

1 (0.3)

1 (1.2)

0 (0)

0 (0)

11 (0.5)

2 (0.3)

0 (0)

8 (0.9)

0 (0)

5 (0.8)

Total

2845

2174

671

264

353

708

645

462

305

86

19

3

2159

686

109

912

1164

660

OR

0.27

1

-

-

-

-

-

-

-

-

-

0.57

1

-

-

-

-

P

0.176

0.956

0.461

0.013

I. butschlii n (%)

Negative

2842 (99.9)

2171 (100)

671 (100)

264 (100)

353 (100)

707 (99.9)

645 (100)

460 (99.6)

305 (100)

86 (100)

19 (100)

3 (100)

2156 (99.9)

686 (100)

109 (100)

911 (99.9)

1162 (99.8)

660 (100)

Positive

3 (0.1)

3 (0.1)

0 (0)

0 (0)

1 (0.3)

0 (0)

0 (0)

2 (0.4)

0 (0)

0 (0)

0 (0)

0 (0)

3 (0.1)

0 (0)

0 (0)

1 (0.1)

2 (0.2)

0 (0)

Total

2845

2174

671

264

353

708

645

462

305

86

19

3

2159

686

109

912

1164

660

OR

0.76

1

-

-

-

-

-

-

-

-

-

0.76

1

P

0.33

0.585

0.329

0.729

 C. mesnili n (%)

Negative

2843 (99.9)

2173 (99.95)

670 (99.9)

264 (100)

352 (99.7)

708 (100)

645 (100)

462 (100)

304 (99.7)

86 (100)

19 (100)

3

(100)

2157 (99.9)

686(100.0)

109 (100)

911 (99.9)

1164 (100)

659 (99.8)

Positive

2 (0.1)

1 (0.046)

1 (0.1)

0 (0)

1 (0.3)

0 (0)

0 (0)

0 (0)

1 (0.3)

0 (0)

0 (0)

0 (0)

2 (0.1)

0 (0)

0 (0)

1 (0.1)

0 (0)

1 (0.2)

Total

2845

2174

671

264

353

708

645

462

305

86

19

3

2159

686

109

912

1164

660

OR

0.308

1

-

-

-

-

-

-

-

-

-

1.333

1

-

-

-

-

P

0.379

0.569

0.425

0.633

Cryptosporidium n (%)

Negative

2839 (99.8)

2169 (99.8)

670 (99.9)

262 (99.2)

353 (100)

707 (99.9)

644 (99.8)

460 (99.6)

305 (100)

86 (100)

19 (100)

3 (100)

2155 (99.8)

684 (99.7)

109 (100)

910 (99.8)

1161 (99.7)

659 (99.8)

Positive

6 (0.2)

5 (0.2)

1 (0.1)

2 (0.8)

0 (0)

1 (0.1)

1 (0.2)

0 (0.4)

0 (0)

0 (0)

0 (0)

0 (0)

4 (0.2)

2 (0.3)

0 (0)

2 (0.2)

3 (0.3)

1 (0.2)

Total

2845

2174

671

264

353

708

645

462

305

86

19

3

2159

686

109

912

1164

660

OR

1.545

1

1

-

0.183

0.239

0.605

-

-

-

-

1.575

1

-

2.174

1.446

1

P

0.568

*

-

0.172

0.252

0.630

-

-

-

-

0.597

-

0.530

0.744

*