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Table 1 Baseline characteristics of the study participants

From: The effect of maternal poliovirus antibodies on the immune responses of infants to poliovirus vaccines

Characteristics

Group 1

Group 2

Group 3

Group 4

Group 5

N

109

125

127

124

124

Age—daysa

72.18 ± 8.93

73.00 ± 8.81

72.59 ± 8.81

72.12 ± 8.09

73.83 ± 7.89

Sex—no. (%)

 Male

49 (44.95)

68 (54.40)

65 (51.18)

61 (49.19)

63 (50.81)

 Female

60 (55.05)

57 (45.60)

62 (48.82)

63 (50.81)

61 (49.19)

  1. Group 1: low-dose Sabin IPV group. Group 2: medium-dose Sabin IPV group. Group 3: high-dose Sabin IPV group. Group 4: control Sabin IPV group. Group 5: control Salk IPV group
  2. aPlus–minus values are means ± SD