Table 1 Demographic, clinical data of patients enrolled before and after COVID-19.

From: The epidemiological features of respiratory tract infection using the multiplex panels detection during COVID-19 pandemic in Shandong province, China

Variable

% (No. of patients in 2019)

% (No. of patients in 2020 and 2021)

Gender

 Female

59.54 (365/613)

37.98 (954/2512)

 Male

59.36 (428/721)

41.63 (1591/3822)

Age group

 0–6 months

72.61 (114/157)

52.02 (245/471)

 7–24 months

87.68 (185/211)

57.28 (618/1079)

 3–6 years

75.09 (199/265)

48.67 (715/1469)

 7–18 years

37.92 (113/298)

40.35 (443/1098)

 19–35 years

31.63 (31/98)

21.55 (92/427)

 36–60 years

44.09 (56/127)

19.57 (156/797)

 > 60 years

53.37 (95/178)

27.79 (276/993)

Detection of pathogens

 Single pathogen infection

61.69 (823/1334)

40.18 (2545/6334)

 Mixed pathogens infection

7.05 (94/1334)

4.69 (297/6334)