Table 1.
Demographic characteristics and seroprevalence
| Number of participants n |
Seropositive n (%) |
Seronegative n (%) |
Seroprevalence (95% CI) binomial exact | P value | |
|---|---|---|---|---|---|
| Overall | 15,390 | 6518 (42.4%) | 8872 (57.6%) | 42.4.% (41.5–43.14)a | |
| Sex | |||||
| Male | 12,280 | 5259 (42.8%) | 7021 (57·2%) | 42.8% (41.9–43·7)a | < 0.05b |
| Female | 3110 | 1259 (40.5%) | 1851 (59.9%) | 40.5% (38.7–42·2)a | |
| Age groups | |||||
| ≤ 20 | 1549 | 568 (36.7%) | 981 (63.3%) | 36.7% (34.2–39.1)a | < 0.01b |
| 21–40 | 9348 | 3957 (42.3%) | 5391 (57.7%) | 42.3% (41.3–43.3)a | |
| 41–60 | 3841 | 1702 (44.3%) | 2139 (55.7%) | 44.3% (42.7–45.9)a | |
| Above 60 | 652 | 291 (44.6%) | 361 (55.4%) | 44.6% (40.7–48.5)a | |
| Province | |||||
| Khyber Pakhtunkhwa | 4797 | 2025 (42.2%) | 2772 (57.8%) | 42.2% (41.2–44.0)a | < 0.01b |
| Sindh | 1721 | 548 (31.8%) | 1173 (68.2%) | 31.8% (29.6–34.1)a | |
| Punjab | 8872 | 3954 (44.5%) | 4927 (55.5%) | 44.5% (43.5–45.6)a |
aUnweighted seroprevalence of SARS CoV-2 with 95% CI calculated using Binomial Exact method
bChi square test with significance level of < 0.05