Table 4 Socio-demographic characteristics and other risk factors of the participants in seroprevalence surveys by test result
From: The burden of COVID-19 infection in a rural Tamil Nadu community
| Â | Serosurvey1 (July 6th to August 20th) | Serosurvey 2 (November 6th to 20th) | ||||
|---|---|---|---|---|---|---|
Negative n = 490 | Positive n = 11 | p value | negative n = 156 | positive n = 44 | p value | |
Age in Years—median (IQR) | 38 (19, 55) | 48 (26, 54) | 0.08 | 49 (40, 61) | 46 (36.25, 60) | 0.324 |
Gender (n males, %) | 241 (49.2) | 5 (45.5) | 0.807 | 59 (37.8) | 14 (31.8) | 0.465 |
Education (n, %) | ||||||
 Less than high school | 73 (14.9) | 1 (9.1) | 0.591 | 28 (17.9) | 13 (30.2) | 0.078 |
 High School and above | 417 (85.1) | 10 (90.9) | 128 (82.1) | 30 (69.8) | ||
Occupation (n, %) | ||||||
 Homemakers, unemployed | 277 (56.5) | 4 (36.4) | 0.144 | 88 (56.4) | 23 (52.3) | 0.638 |
 Unskilled, semi-skilled labourer | 117 (23.9) | 3 (27.3) | 43 (27.6) | 13 (29.5) | ||
 Business | 23 (4.7) | 0 | 6 (3.8) | 2 (4.5) | ||
 Professional | 21 (4.3) | 2 (18.2) | 5 (3.2) | 4 (9.1) | ||
 Cultivation/Farmer | 35 (7.1) | 1 (9.1) | 7 (4.5) | 1 (2.3) | ||
 Service jobs | 17 (3.5) | 1 (9.1) | 7 (4.5) | 1 (2.3) | ||
Housing (n, %) | ||||||
 Poor housing | 162 (33.1) | 5 (45.5) | 0.389 | 58 (37.2) | 15 (34.1) | 0.707 |
 Good housing | 328 (66.9) | 6 (54.5) | 98 (62.8) | 29 (65.9) | ||
Smoker (n, %) | 32 (6.5) | 1 (9.1) | 0.735 | 7 (4.5) | 1 (2.3) | 0.508 |
Travel history | 420 (85.7) | 9 (81.8) | 0.716 | 130 (83.3) | 38 (86.4) | 0.628 |
Contact with confirmed case | 6 (1.2) | 0 | 0.712 | 7 (4.5) | 0 | 0.153 |
Participated in gathering last 14Â days | 14 (2.9) | 0 | Â | 6 (3.8) | 5 (11.4) | 0.053 |
Co-morbidities | ||||||
 Chronic lung disease/TB | 10 (2.1) | 0 |  | 6 (3.8) | 3 (6.8) | 0.401 |
 Chronic Renal, liver, heart disease | 4 (0.8) | 0 |  | 2 (1.3) | 1 (2.3) |  |
 Diabetes | 25 (5.1) | 2 (18.2) | 0.057 | 23 (14.7) | 6 (13.6) | 0.854 |
 Hypertension | 23 (4.7) | 2 (18.2) | 0.042 | 26 (16.7) | 5 (11.4) | 0.391 |