Table 1 Demographic characteristics of the participants by dose age groups

From: Safety and immunogenicity of a prefusion non-stabilized spike protein mRNA COVID-19 vaccine: a phase I trial

Characteristic

10 µg group

25 µg group

50 µg group

Overall

Adults (aged 18–55yr)

N = 12

N = 12

N = 12

N = 36

Sex-number (%)

 Female

9 (75.0)

7 (58.3)

8 (66.7)

24 (66.7)

 Age-Mean (s.d.)

35.9 (5.9)

34.1 (9.0)

37.3 (11.8)

35.8 (9.1)

 Min–max

21–44

26–53

21–53

21–53

 Body mass index (kg m−2), Mean (s.d.)

23.9(3.3)

22.1(2.6)

22.9 (2.5)

23.0 (2.8)

Elderly (aged 56–75yr)

N = 12

N = 12

N = 12

N = 36

Sex-number (%)

 Female

7 (58.3)

7 (58.3)

5 (41.7)

19 (52.8)

 Age-Mean (s.d.)

67.4 (3.2)

67.8 (3.2)

60 (5.5)

65.1 (5.4)

 Min–max

64–73

65–74

56–71

56–74

 Body mass index (kg m−2), Mean (s.d.)

24.1 (4.2)

22.7 (3.1)

23.2 (2.5)

23.3 (3.3)