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Table 6 Serolo-positivity percentage based on the vaccination status as per the Wantai, QRBD and CLIA test

From: Test concordance and diagnostic accuracy of three serological assays for detection of anti-SARS-CoV-2 antibody: result from a population-based sero-epidemiological study in Delhi

Test

Vaccinated

(n = 371)

Unvaccinated

(n = 3117)

 

Total

Single dose

(n = 284)

Two doses (n = 87)

Wantai

292 (78.1%)

207 (72.9%)

85 (97.7%)

2431 (77.9%)

QRBD

269 (76.8%)

(n = 350)#

190 (71.9)

(n = 264)$

79 (91.6%)

(n = 86)@

2253 (75.1%)

(n = 3001)θ

CLIA

151 (40.7%)

102 (35.9%)

48 (55.2%)

958 (30.7%)

  1. #Among 371 vaccinated, 9 sample had equivocal result, 12 samples had result not available/ULOQ/Retest/CV out of range/ < 7.99, thereafter they were excluded
  2. $Among 284 getting single dose vaccine, 9 sample had equivocal result, 11 samples had result not available/ULOQ/Retest/CV out of range/ < 7.99, thereafter they were excluded
  3. @Among 87 getting two doses vaccine, 1 sample had result not available/ULOQ/Retest/CV out of range/< 7.99, thereafter they were excluded
  4. θAmong 3117 unvaccinated, 97 sample had equivocal result, 16 sample had result not available/ULOQ/Retest/CV out of range/< 7.99 and 3 participants had unknown history of vaccination, thereafter they were excluded