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Table 1 Demographic and clinical characteristics of study participants

From: Viral etiology and epidemiology of pediatric patients hospitalized for acute respiratory tract infections in Macao: a retrospective study from 2014 to 2017

Parameter

Patients with ARIs (n = 4880)

Viral infection

Yes

(n = 3767)

No

(=1113)

Counts

%

Counts

%

Counts

%

Gender

 Male

2707

55.5%

2120

56.3%

587

52.7%

 Female

2173

44.5%

1647

43.7%

526

47.3%

Age group (years)

 0- < 1 (infant)

857

17.6%

673

17.9%

184

16.5%

 1- < 3 (toddler)

2407

49.3%

1962

52.1%

445

40.0%

 3- < 6 (preschool child)

1222

25.0%

908

24.1%

314

28.2%

  ≥ 6 (school child)

394

8.1%

224

5.9%

170

15.3%

Season of admission

 Spring

1406

28.8%

1095

29.1%

311

27.9%

 Summer

1306

26.8%

944

25.1%

362

32.5%

 Autumn

1176

24.1%

960

25.5%

216

19.4%

 Winter

992

20.3%

768

20.4%

224

20.1%

Clinical diagnosis

 Upper respiratory tract infection

2383

48.8%

1720

45.7%

663

59.6%

 Croup

141

2.9%

123

3.3%

18

1.6%

 Lower respiratory tract infection

2356

48.3%

1924

51.1%

432

38.8%