Skip to main content

Table 2 Differences in SARS-CoV-2 spike protein antibody titres based on sex and age group

From: Age- and sex-based changes in spike protein antibody status after SARS-CoV-2 vaccination and effect of past-infection in healthcare workers in Osaka

Age

Sex

Log (S Ab)

Delta log (S Ab)

Men, n

Women, n

Month 1 (May 2021)

p-value

Month 7 (Nov 2021)

p-value

Men

Women

p-value

Men

Women

Men

Women

< 30 years

23

63

3.03 ± 0.24

3.25 ± 0.34

0.005

2.79 ± 0.24

2.95 ± 0.34

0.038

− 0.24 ± 0.23

− 0.30 ± 0.35

0.444

30–39 years

16

83

3.26 ± 0.48

3.13 ± 0.39

0.246

2.89 ± 0.37

2.72 ± 0.46

0.185

− 0.37 ± 0.32

− 0.40 ± 0.33

0.724

40–49 years

49

185

3.01 ± 0.26

3.05 ± 0.35

0.438

2.73 ± 0.42

2.69 ± 0.36

0.499

− 0.28 ± 0.36

− 0.36 ± 0.29

0.096

50–59 years

29

123

2.95 ± 0.25

3.03 ± 0.35

0.306

2.47 ± 0.34

2.76 ± 0.47

0.002

− 0.50 ± 0.29

− 0.28 ± 0.41

0.007

≥ 60 years

34

31

2.89 ± 0.40

2.89 ± 0.34

0.981

2.40 ± 0.39

2.57 ± 0.40

0.077

− 0.49 ± 0.47

− 0.32 ± 0.21

0.063

  1. Data are the numbers, or logarithmic values of spike protein antibody titres [log (S Ab)] and are mean ± standard deviation
  2. Delta log (S Ab) represents changes in logarithmic values of spike protein antibody titers [log (S Ab)] from 1 to 7 months after vaccination
  3. SARS-CoV-2, severe acute respiratory syndrome coronavirus 2; S Ab, spike protein antibody