Table 1 Odds ratios estimated for total IPIs/Cs among sexes, age groups, habitat, season, COVID-19 pandemic period, and stool consistency. The odds ratio is calculated for being positive

Sex n (%)

Male

2038 (93.7)

136 (6.3)

2174(100)

0.896

0.409

Female

623 (92.8)

48 (7.2)

671 (100)

1

Total

2661 (93.5)

184 (6.5)

2845 (100)

Age groups* n (%)

0–9

254 (96.2)

10 (3.8)

264(100)

1

Contrast var.

10–19

331 (93.8)

22 (6.2)

353(100)

1.789

0.143

20–29

670 (94.6)

38 (5.4)

708(100)

1.586

0.209

30–39

605 (93.8)

40 (6.2)

645(100)

1.867

0.089

40–49

425 (92.0)

37(8.0)

462(100)

2.369

0.021

50–59

273 (89.5)

32 (10.5)

305 (100)

3.218

0.002

60–69

81 (94.2)

5(5.8)

86(100)

1.684

0.359

70–79

19 (100)

0 (0)

19(100)

-

-

> 80

3 (100)

0 (0)

3(100)

-

-

Total

2661 (93.5)

184(6.5)

2845 (100)

Habitat n (%)

Urban

2015 (93.3)

144(6.7)

2159(100)

1.154

0.436

Rural

646 (94.2)

40(5.8)

686(100)

1

Total

2661 (93.5)

184(6.5)

2845(100)

Season* n (%)

Spring

105 (96.3)

4 (3.7)

109(100)

0.373

0.063

Summer

860 (94.3)

52 (5.7)

912(100)

0.528

0.02

Fall

1100 (94.5)

64 (5.5)

1164(100)

0.564

0.02

Winter

596 (90.3)

64 (9.7)

660(100)

1

Contrast var.

Total

2661 (93.5)

184 (6.5)

2845(100)

Covid n (%)

Pre-covid

616 (94.9)

33 (5.1)

649(100)

0.697

0.103

Post-covid

2045 (93.1)

151 (6.9)

2196(100)

1

Total

2661 (93.5)

184 (6.5)

2845(100)

Stool consistency* n (%)

Formed

756 (94.1)

47 (5.9)

803 (100)

1

Contrast var.

Soft

1196 (93.7)

80 (6.3)

1276 (100)

1.100

0.618

Loose

663 (93.1)

49 (6.9)

712 (100)

1.216

0.361

Watery

46 (85.2)

8 (14.8)

54 (100)

3.613

0.002

Total

2661 (93.5)

184 (6.5)

2845 (100)