Table 4 Univariate analyses and χ2 test of potential risk factors of person-to-person transmission of serum samples IgM antibodies positive SFTSV
From: Analysis of severe fever with thrombocytopenia syndrome cluster in east China
Exposure factors | Cases n = 8 (%) | Controls n = 41 (%) | Univariate analyses | χ2 test | |||
|---|---|---|---|---|---|---|---|
OR (95%CI) | P | χ2 | P | ||||
Attending to the index patient’s funeral | 8 (100.00) | 23 (56.10) | 0.00(-)3 | 1.00 | 3.57 | 0.0591 | |
The poor ventilation where the corpse was stored | 8 (100.00) | 19 (46.34) | 0.00(-)3 | 1.00 | 5.49 | 0.0191 | |
Talked face to face | 2 (25.00) | 20 (48.78) | 2.85(0.51–15.85) | 0.23 | 0.82 | 0.361 | |
The index patient’s contaminated items | 8 (100.00) | 8(19.51) | 0.00(-)3 | 1.00 | 15.77 | 0.001 | |
The index patient’s vomitus | 1 (12.50) | 0 (0.00) | 0.00 (-)3 | 1.00 | - | 0.172 | |
The index patient’s excreta | 1 (12.50) | 1 (2.44) | 0.18 (0.010–3.14) | 0.24 | - | 0.312 | |
The index patient’s blood or body fluids | 2 (25.00) | 7 (17.07) | 0.62 (0.10–3.72) | 0.60 | 0.00 | 1.001 | |
Rats in the households | 0 (0.00) | 4 (9.76) | 0.00 (-)3 | 1.00 | - | 1.002 | |
Domestic animals | 2 (25.00) | 5 (12.20) | 2.40 (0.38–15.32) | 0.36 | 0.13 | 0.711 | |
Weeds and shrubs in household | 2 (25.00) | 2 (4.88) | 6.5(0.77–55.25) | 0.086 | - | 0.122 | |
Wild animals in household or working place | 1 (12.50) | 5 (12.20) | 1.03 (0.10–10.20) | 0.98 | 0.00 | 1.001 | |
Worked in the field | 6 (75.00) | 23 (56.09) | 2.35 (0.42–13.05) | 0.33 | 0.28 | 0.601 | |
Weeds and shrubs in workplace | 5 (62.50) | 19 (46.34) | 1.93 (0.41–1.96) | 0.41 | 0.15 | 0.701 | |