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Table 1 Characteristics of the Included Children and Adults (2017 to 2020, respectively) for the study period. Data of 2020 were compared with those obtained in 2019, 2018 and 2017

From: Early evidence of SARS-CoV-2 in Milan, Jan-Feb 2020

  Pediatric Emergency Department
  2017 2018 2019 2020
Total patients in ED, N 2546 2444 2719 2736
Age, years median and IQR 2.5 [1.3–6.8] 3.1 [1.5–5.8] 2.4 [1.0–5.3] 3.4 [1.3–6.7]
Females, N (%) 1145 (45.0) 1126 (46.1) 1276 (46.9) 1176 (43.0)
Reason for referral, N (%)
 Dyspnea 108 (4.2) 122 (5.0) 115 (4.2) 98 (3.6)
 Cough 241 (9.5) 200 (8.2) 249 (9.2) 224 (8.2)
 Fever 527 (20.7)* 707 (28.9)* 743 (27.3)* 918 (33.6)
 At least one of the previous 876 (34.4)* 1029 (42.1)* 1107 (40.7)* 1240 (45.3)
 ICU admission, N (%)a 4/876 (0.5) 5/1029 (0.5) 3/1107 (0.3) 4/1240 (0.3)
  Adult Emergency Department
Total patients in ED, N 4497 4422 4546 4787
Age, years median and IQR 52 [34–73] 53 [35–74] 53 [34–74] 51 [32–73]
Females, N (%) 2219 (49.3) 2163 (48.9) 2161 (47.5) 2349 (49.1)
Reason for referral, N (%)
 Dyspnea 233 (5.2)* 231 (5.2)* 307 (6.8) 302 (6.3)
 Cough 56 (1.2)* 77 (1.7) 77 (1.7) 100 (2.1)
 Fever 140 (3.1)* 138 (3.1)* 186 (4.1)* 240 (5.0)
 At least one of the previous 429 (9.5)* 446 (10.1)* 570 (12.5) 642 (13.4)
 ICU admission, N (%)a 1/429 (0.2) 1/446 (0.2) 0/570 (0)* 8/642 (1.2)
  1. Comparisons with 2020: *higher in 2020, P < 0.05; (two-sided Fisher’s exact test). athe number of subjects with at least one symptom among dyspnea, cough or fever, is used as denominator
  2. Abbreviations: IQR Interquartile Range, ED Emergency Department, ICU Intensive Care Unit