TABLE 1

Characteristics of Children's COVID-19 Cases in China

CharacteristicsAll CasesCategoryP
ConfirmedSuspected
Age, median (interquartile range)7 (2–13)10 (4–15)6 (2–12)<.001
Age group, n (%)
 <1379 (17.6)85 (11.7)291 (20.7)<.001
 1–5491 (23.0)137 (18.8)354 (25.2)
 6–10522 (24.5)170 (23.4)352 (25.0)
 11–15412 (19.3)180 (24.7)232 (16.5)
 >15334 (15.6)156 (21.4)178 (12.6)
Sex, n (%)
 Male1208 (56.6)418 (57.4)790 (56.1).575
 Female927 (43.4)310 (42.6)617 (43.9)
Severity of illness, n (%)
 Asymptomatic94 (4.4)94 (12.9)0 (0.0)
 Mild1088 (51.0)314 (43.1)774 (55.0)<.001
 Moderate826 (38.7)298 (40.9)528 (37.5)
 Severe112 (5.2)18 (2.5)94 (6.7)
 Critical13 (0.6)3 (0.4)10 (0.7)
 Missing2 (0.1)1 (0.2)1 (0.1)
Days from symptom onset to diagnosis
 Median (interquartile range)2 (1–5)3 (1–5)2 (0–4)<.001
 Range0–420–420–36
Province, n (%)
 Hubei981 (46.0)229 (31.5)752 (53.4)<.001
 Surrounding areasa396 (18.5)154 (21.1)242 (17.2)
 Other758 (35.5)345 (47.4)413 (29.4)
Total2135728 (34.1)1407 (65.9)
  • —, not applicable.

  • a Surrounding areas are the provinces and municipality bordering Hubei; they are Anhui, Henan, Hunan, Jiangxi, Shaanxi, and Chongqing.