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Table 1 Baseline Epidemiological Characteristics of Confirmed Cases and Clinically Diagnosed Cases in Wuhan

From: The comparison of epidemiological characteristics between confirmed and clinically diagnosed cases with COVID-19 during the early epidemic in Wuhan, China

Baseline Characteristics No. Confirmed Cases (%) No. Clinically Diagnosed Cases (%)
Total 29886 21960
Age, median (IQR a), years 57.0(44.0–67.0) 54.0(41.0–65.0)
Age group, years
  0~ 186(0.6) 220(1.0)
  10~ 226(0.8) 173(0.8)
  20~ 1371(4.6) 1412(6.4)
  30~ 3720(12.4) 3280(14.9)
  40~ 4435(14.8) 3736(17.0)
  50~ 6347(21.2) 4851(22.1)
  60~ 7678(25.7) 5007(22.8)
  70~ 3979(13.3) 2285(10.4)
  80~ 1671(5.6) 839(3.8)
  ≥90 217(0.7) 121(0.6)
  Missing 56(0.2) 36(0.2)
Sex
  Male 15059(50.4) 10165(46.3)
  Female 14827(49.6) 11795(53.7)
Occupation
  Child and student 439(1.5) 482(2.2)
  Cadre 1489(5.0) 1119(5.1)
  Freelancer 203(0.7) 194(0.9)
  Physical labor 712(2.4) 641(2.9)
  Public service staff 1816(6.1) 1477(6.7)
  Housework or unemployed 5684(19.0) 5401(24.6)
  Retirees 10012(33.5) 6114(27.8)
  Farmer or pastoral worker 1390(4.7) 1002(4.6)
  Healthcare worker 1188(4.0) 1211(5.5)
  Missing 6953(23.3) 4319(19.7)
Case severity
  Mild 18192(60.9) 11326(51.6)
  Moderate 4148(13.9) 7446(33.9)
  Severe 5278(17.7) 2749(12.5)
  Critical 823(2.8) 315(1.4)
  Missing 1445(4.8) 124(0.6)
Death or not
  Not 28322(94.8) 21703(98.8)
  Yes 1564(5.2) 257(1.2)
Date of onset
  Before Dec 31, 2019 135(0.5) 92(0.4)
  Jan 1–10, 2020 591(2.0) 388(1.8)
  Jan 11–20, 2020 2921(9.8) 1981(9.0)
  Jan 21–31, 2020 13502(45.2) 7741(35.3)
  Feb 1–10, 2020 9600(32.1) 8583(39.1)
  Feb 11–20, 2020 2758(9.2) 3172(14.4)
  Feb 21–24, 2020 355(1.2) ——
  Missing 24(0.1) 3(0.0)
  Days from onset to diagnosis, median (IQR) 9.0 (5.0–13.0) 11.0 (5.0–18.0)
District of residence
  City centre 23768(79.5) 17003(77.4)
  Suburb 5577(18.7) 4755(21.7)
  Outside Wuhan 339(1.1) 173(0.8)
  Missing 202(0.7) 29(0.1)
Level of hospital
  Tertiary hospital 21622(72.3) 18598(84.7)
  Primary and secondary hospital 8166(27.3) 3362(15.3)
  Missing 98(0.3) ——
  1. aIQR interquartile range