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. 2007 Apr 10;9(2):R38. doi: 10.1186/ar2174

Table 4.

Geometric means (percentage of the coefficient of variation) of antibody titers taken 14 and 28 days after pneumococcal vaccination

Group n Baseline (μg/ml) 14 days post-vaccination (μg/ml) 28 days post-vaccination (μg/ml)
Serotype 14
 Group A 20 1.9 (112) 20.5 (236) 23.5 (199)
 Group B 20 1.9 (132) 15.5 (105) 15.4 (111)a
 Group C 19 1.8 (201) 12.0 (195) 12.8 (250)
 Group D 19 1.8 (125) 18.0 (155) 12.6 (141)
Serotype 2
 Group A 20 1.0 (163) 13.4 (113) 15.4 (110)
 Group B 20 1.1 (84) 12.3 (109) 13.2 (107)a
 Group C 19 0.8 (90) 4.1 (118) 4.8 (115)
 Group D 19 0.7 (122) 7.0 (132) 7.7 (136)
Serotype 23F
 Group A 20 0.9 (101) 3.0 (112) 3.3 (113)
 Group B 20 1.8 (124) 5.6 (87) 4.9 (89)a
 Group C 19 1.2 (158) 4.5 (112) 5.1 (106)
 Group D 19 1.5 (125) 6.2 (92) 6.7 (90)
Serotype 8
 Group A 20 1.5 (120) 10.1 (138) 9.6 (114)
 Group B 20 2.3 (104) 12.0 (61) 10.5 (81)a
 Group C 19 1.4 (104) 4.0 (68) 4.4 (64)
 Group D 19 1.6 (74) 5.1 (144) 5.2 (106)
Serotype 9V
 Group A 20 0.9 (148) 6.1 (102) 6.4 (99)
 Group B 20 1.3 (158) 4.0 (97) 3.9 (101)a
 Group C 19 0.9 (190) 3.0 (147) 3.2 (108)
 Group D 19 0.9 (119) 2.0 (107) 2.3 (106)
Serotype 19F
 Group A 20 5.3 (95) 13.0 (125) 13.9 (150)
 Group B 20 10.3 (127) 19.9 (105) 19.6 (97)a
 Group C 19 4.3 (117) 10.0 (178) 10.3 (180)
 Group D 19 5.6 (75) 9.9 (89) 10.3 (88)
Serotype 6B
 Group A 20 1.6 (103) 5.9 (197) 6.1 (204)
 Group B 20 3.1 (126) 7.8 (87) 7.1 (95)a
 Group C 19 1.9 (140) 4.6 (147) 4.6 (141)
 Group D 19 1.8 (114) 3.5 (159) 3.5 (151)

an = 19.