Table 1 Main demographic and clinical features of the surveyed symptomatic and asymptomatic populations investigated in the present study
Iran Hospital (n = 5,720) | Khatam Hospital (n = 628) | Clinical Reference Laboratory (n = 11,107) | All three (n = 17,455) | |||||
|---|---|---|---|---|---|---|---|---|
Variable | n | % | n | % | n | % | n | % |
Gender | ||||||||
Female | 2,296 | 40.1 | 281 | 44.7 | 1,161 | 10.5 | 3,738 | 21.4 |
Male | 3,424 | 59.9 | 347 | 55.3 | 9,946 | 89.5 | 13,717 | 78.6 |
Age group (years) | ||||||||
≤ 7 | 5,195 | 90.8 | 26 | 4.1 | 442 | 4.0 | 5,663 | 32.4 |
> 7 | 525 | 9.2 | 602 | 95.9 | 10,665 | 96.0 | 11,792 | 67.6 |
Symptom | ||||||||
Diarrheica | 4,297 | 75.1 | 340 | 54.1 | 550 | 5.0 | 5,187 | 29.7 |
Non-diarrheicb | 1,423 | 24.9 | 288 | 45.9 | 10,557 | 95.0 | 12,268 | 70.3 |
Season (2020–2021) | ||||||||
Spring | 358 | 6.3 | ND | – | 634 | 5.7 | 992 | 5.7 |
Summer | 396 | 6.9 | 37 | 5.9 | 1,280 | 11.5 | 1,713 | 9.8 |
Autumn | 1,025 | 17.9 | 57 | 9.1 | 1,302 | 11.7 | 2,384 | 13.7 |
Winter | 725 | 12.7 | 68 | 10.8 | 1,988 | 17.9 | 2,781 | 15.9 |
Sub-total | 2,504 | 43.8 | 162 | 25.8 | 5,204 | 46.9 | 7,870 | 45.1 |
Season (2021–2022) | ||||||||
Spring | 214 | 3.7 | 89 | 14.2 | 923 | 8.3 | 1,226 | 7.0 |
Summer | 541 | 9.5 | 51 | 8.1 | 1,371 | 12.3 | 1,963 | 11.3 |
Autumn | 1,183 | 20.7 | 171 | 27.2 | 1,377 | 12.4 | 2,731 | 15.6 |
Winter | 1,278 | 22.3 | 155 | 24.7 | 2,232 | 20.1 | 3,665 | 21.0 |
Sub-total | 3,216 | 56.2 | 466 | 74.2 | 5,903 | 53.1 | 9,585 | 54.9 |