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. 2024 May;17(5):889–896. doi: 10.1016/j.jiph.2024.03.024

Table 2.

Sociodemographic and household interactions of Non-Cases (uninfected contacts) and Secondary Cases. The table presents Odds Ratios (OR) with 95% Confidence Intervals (CI) for sociodemographic variables associated with secondary transmission.

Characteristics Non-cases Secondary cases OR (CI)
N = 218 N = 34
Age, years, (mean± SD) 30.62 ± 19.92 35.30 ± 19.67 1.01(0.99,1.03)
0-10 Years 40 (18.35%) 2 ( 5.88%) Ref
11-20 Years 35 (16.06%) 6 (17.65%) 3.43(0.65,18.09)
21-30 Years 41 (18.81%) 10 (29.41%) 4.88(1.01,23.67)
31-40 Years 40 (18.35%) 4 (11.76%) 2.0(0.35,11.54)
41-50 Years 18 ( 8.26%) 3 ( 8.82%) 3.33(0.51,21.71)
51-60 Years 15 ( 6.88%) 3 ( 8.82%) 4.0(0.61,26.35)
> 60 Years 29 (13.30%) 6 (17.65%) 4.14(0.78,21.99)
Gender
Male 109 (50.00%) 15 (44.12%) Ref
Female 109 (50.00%) 19 (55.88%) 1.27(0.61,2.62)
Employment status
Employed 83 (38.07%) 11 (32.35%) 0.78(0.36,1.68)
Unemployed 135 (61.93%) 23 (67.65%) Ref
Symptoms
Fever 23 (10.55%) 12 (35.29%) 4.62(2.03,10.56)
Sore throat 30 (13.76%) 12 (35.29%) 3.42(1.53,7.62)
Congestion or runny nose 43 (19.72%) 13 (38.24%) 2.52(1.17,5.43)
Cough 39 (17.89%) 12 (35.29%) 2.50(1.14,5.48)
Nausea or vomiting@ 3 ( 1.38%) 3 ( 8.82%) 6.94(1.34,35.9)
Headache 19 ( 8.72%) 11 (32.35%) 5.01(2.12,11.82)
Muscle/Body ache 17 ( 7.80%) 12 (35.29%) 6.45(2.73,15.24)
Loss of smell 17 ( 7.80%) 12 (35.29%) 6.45(2.73,15.24)
Loss of taste 5 ( 2.29%) 8 (23.53%) 13.11(3.99,43.05)
Fatigue@ 14 ( 6.42%) 13 (38.24%) 9.02(3.75,21.71)
Pre-existing comorbidities* 22 (10.09%) 5 (14.71%) 1.54(0.54,4.37)
Household size%
< 5 members 44 (20.18%) 9 (26.47%) Ref
5-10 members 141 (64.68%) 21 (61.76%) 0.73(0.31,1.71)
> 10 members 33 (15.14%) 4 (11.76%) 0.59(0.17,2.09)
Domestic Travel History 9 ( 4.13%) 2 ( 5.88%) 1.45(0.3,7.02)
International Travel History 1 ( 0.46%) 1 ( 2.94%) 6.58(0.4107.69)
Contact typically shares a room with the primary case, n = 251 110 (50.69%) 17 (50.00%) 0.97(0.47,2.00)
Contact Duration with primary case, Median (IQR) 1.0 (0.0-5.0) 0.5 (0.0-3.0) 0.94(0.84,1.04)
Contact took care of primary case at home during illness 68 (31.19%) 14 (41.18%) 1.54(0.74,3.24)
Contact hugged primary case during illness, n = 250 66 (30.41%) 6 (18.18%) 0.51(0.2,1.29)
Contact shook hands with primary case during illness n = 247@ 132 (60.83%) 13 (43.33%) 0.49(0.23,1.07)
Contact shared a meal with primary case during illness 122 (55.96%) 18 (52.94%) 0.89(0.43,1.83)
Contact ate with hands from the same plate as primary case during illness 39 (17.89%) 5 (14.71%) 0.79(0.29,2.17)
Contact shared a drinking cup/glass with primary case during illness n = 250 54 (25.00%) 9 (26.47%) 1.08(0.48,2.46)
Contact shared utensils with primary case during illness 72 (33.03%) 9 (26.47%) 0.73(0.32,1.65)
Contact slept in the same room as primary case during illness 37 (16.97%) 7 (20.59%) 1.27(0.51,3.13)
Contact shared a toilet with case during illness, n = 249 60 (27.65%) 10 (31.25%) 1.19(0.53,2.66)
Contact wears face mask every time outside the house
Never 10 ( 4.59%) 0 ( 0.00%) -
Sometimes 29 (13.30%) 2 ( 5.88%) 0.39(0.09,1.70)
Always 179 (82.11%) 32 (94.12%) Ref

@Final adjusted model was significant for Nausea/vomiting aOR: 7.89 95% CI 1.37,45.53, Fatigue aOR:9.31, 95% CI 3.81,22.78 and did the contact shake hands with the case during the time he/she was ill ? aOR: 0.41 95% CI 0.17,0.97

%Household size refers to the number of people in the household of each contact.

*Co-morbid conditions include cancer, Diabetes, HIV or other immune deficiency, heart disease, asthma, chronic lungs disease, chronic kidney disease, chronic anemia disease, chronic neurological disease, organ or bone marrow recipient and other pre-existing conditions.

Employed: government job, private job, daily wages worker and self-employed and un-employed: retired persons, students, and housewives