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Table 1 Characteristics of SARS-CoV-2 positive cases with and without a re-positive test

From: A follow-up study shows that recovered patients with re-positive PCR test in Wuhan may not be infectious

Characteristic Total patients (N = 20,280) Patient with re-positive test (N = 2466) Patient without re-positive test (N = 17,814)
Hospital stay for the original infection, median (IQR) 15.96 (9.96–23.75)5 18.54 (11.96–27.04)1 15.71 (9.83–23.21)3
Days from discharge from hospital to re-positive test, median (IQR) NA 11.00 (9.00–17.00)2 NA
Hospital stay for re-positive test, median (IQR) NA 10.63 (7.67–15.63)4 NA
Sex, no. (%)
 Male 9433 (46.51%) 1082 (43.88%) 8351 (46.88%)
 Female 10,847 (53.49%) 1384 (56.12%) 9463 (53.12%)
Age, no. (%)
 0~9 124 (0.61%) 6 (0.24%) 118 (0.66%)
 10~19 172 (0.85%) 23 (0.93%) 149 (0.84%)
 20~29 913 (4.50%) 142 (5.76%) 771 (4.33%)
 30~39 2662 (13.13%) 335 (13.58%) 2327 (13.06%)
 40~49 3572 (17.61%) 370 (15.00%) 3202 (17.97%)
 50~59 4941 (24.36%) 588 (23.84%) 4353 (24.44%)
 60~69 5319 (26.22%) 668 (27.09%) 4651 (26.11%)
 70~79 1973 (9.73%) 254 (10.30%) 1719 (9.65%)
 ≥ 80 562 (2.77%) 80 (3.24%) 482 (2.71%)
Symptoms of first infection, no. (%) * *  
 Asymptomatic 543 (2.68%) 6 (0.24%) 537 (3.01%)
 Mild 10,304 (50.83%) 1220 (49.67%) 9084 (51.00%)
 Moderate 6614 (32.63%) 874 (35.59%) 5740 (32.22%)
 Severe 2365 (11.67%) 296 (12.05%) 2069 (11.61%)
 Critical 379 (1.87%) 59 (2.40%) 320 (1.80%)
  1. Cases were detected in Wuhan, China, between December 2019 and August 2020
  2. 1650 cases were removed owing to a lack of detailed information
  3. 218 cases were removed owing to a lack of detailed information
  4. 34447 cases were removed owing to a lack of detailed information
  5. 41841 cases were removed owing to a lack of detailed information
  6. 55097 cases were removed owing to a lack of detailed information
  7. *10 cases were removed owing to a lack of detailed information