Table 1 Participant Characteristics

From: Anti-nucleocapsid and anti-spike antibody trajectories in people with post-covid condition versus acute-only infections: a nested longitudinal case-control study within the Virus Watch prospective cohort

 

Overall Cohort

N = 2010

Acute Only

N = 1616

Post-Covid Condition

N = 394

Post-Covid Condition Status - n (%),

 Acute Only

1616 (80%)

-

-

 Post-Covid Condition

394 (20%)

-

-

Age - median (IQRa)

64 (57, 70)

65 (58,70)

61 (53,69)

Sex - n (%),

 Female

1280 (59%)

928 (57%)

282 (72%)

 Male

888 (41%)

688 (43%)

112 (28%)

Comorbidities - n (%),

 No

1208 (60%)

1012 (63%)

196 (50%)

 Yes

802 (40%)

604 (37%)

198 (50%)

Vaccination Status at Time of Infectionb - n (%),

 Unvaccinatedc

159 (7.9%)

60 (3.7%)

99 (25%)

 1 Dosec

31 (1.5%)

24 (1.5%)

7 (2%)

 2 Doses

192 (9.6%)

145 (9.0%)

47 (12%)

 3 Doses

1460 (73%)

1253 (78%)

207 (53%)

 >3 Dosesc

168 (8.5%)

134 (8%)

34 (9%)

Dominant Variant at Time of Infectiond

 Wild Type

67 (3.3%)

34 (2.1%)

33 (8.4%)

 Alpha

109 (5.4%)

47 (2.9%)

62 (16%)

 Delta

197 (9.8%)

142 (8.8%)

55 (14%)

 Omicron BA.1

295 (15%)

234 (14%)

61 (15%)

 Omicron BA.2

1341 (67%)

1158 (72%)

183 (46%)

Overall Number of Submitted Samples - median (IQRa)

5 (3,6)

5 (4,6)

4 (2,6)

Number of Submitted Samples Post-Infection - median (IQRa)

2 (1,5)

2 (1,4)

2 (1,6)

  1. aIQR = interquartile range, b for number of samples by vaccination status pre-infection please see Supplementary Table 1, conly included in anti-N model as insufficient number of samples for stratified anti-S analyses; dvariant periods based on UK Office for National Statistics estimates https://www.ons.gov.uk/peoplepopulationandcommunity/healthandsocialcare/conditionsanddiseases/articles/coronaviruscovid19infectionsurveytechnicalarticlecumulativeincidenceofthenumberofpeoplewhohavebeeninfectedwithcovid19byvariantandageengland/9february2023#cumulative-incidence-by-period-variant-and-age.