Table 1 Demographic characteristics of norovirus infections among outpatient children with diarrhea in Beijing, 2011–2018
Demographic characteristics | Total number | Number of Norovirus positive (%) | OR | 95%CI | P-value |
|---|---|---|---|---|---|
Gender | |||||
Male | 3063 | 516 (16.8%) | 1.00 | Reference | |
Female | 1848 | 293 (15.9%) | 0.93 | 0.80–1.09 | 0.364 |
Age (months) | |||||
0–5 | 1292 | 130 (10.1%) | 1.00 | Reference | |
6–11 | 1441 | 253 (17.6%) | 1.90 | 1.51–2.39 | < 0.01 |
12–23 | 1421 | 319 (22.4%) | 2.59 | 2.08–3.22 | < 0.01 |
24–35 | 400 | 59 (14.8%) | 1.55 | 1.11–2.15 | 0.009 |
36–47 | 225 | 37 (16.4%) | 1.76 | 1.18–2.62 | 0.005 |
48–59 | 132 | 11 (8.3%) | 0.81 | 0.43–1.55 | 0.527 |
Living area | |||||
Urban | 3323 | 542 (16.3%) | 1.00 | Reference | |
Rural | 1588 | 267 (16.8%) | 1.04 | 0.88–1.22 | 0.657 |
Year | |||||
2011 | 596 | 113 (19.0%) | 1.00 | Reference | |
2012 | 652 | 112 (17.2%) | 0.89 | 0.66–1.18 | 0.419 |
2013 | 639 | 95 (14.9%) | 0.75 | 0.55–1.01 | 0.057 |
2014 | 548 | 85 (15.5%) | 0.78 | 0.58–1.07 | 0.137 |
2015 | 570 | 89 (15.6%) | 0.79 | 0.58–1.07 | 0.142 |
2016 | 718 | 107 (14.9%) | 0.75 | 0.56–1.00 | 0.054 |
2017 | 621 | 107 (17.2%) | 0.89 | 0.66–1.19 | 0.457 |
2018 | 567 | 101 (17.8%) | 0.93 | 0.69–1.25 | 0.650 |
Season | |||||
Spring | 1225 | 180 (14.7%) | 0.75 | 0.60–0.93 | 0.009 |
Summer | 1280 | 121 (9.5%) | 0.45 | 0.36–0.58 | < 0.001 |
Autumn | 1250 | 292 (23.3%) | 1.33 | 1.09–1.62 | 0.005 |
Winter | 1156 | 216 (18.7%) | 1.00 | Reference | |