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Table 1 Baseline Characteristics of Participants Completing at Least One Follow-Up Visit

From: Immune response to co-administration of measles, mumps, and rubella (MMR), and yellow fever vaccines: a randomized non-inferiority trial among one-year-old children in Argentina

 

MMR1YF1: MMR and YF at first visit

(n = 244)

MMR1YF2: MMR at first visit and YF at second visit

(n = 249)

YF1MMR2: YF at first visit and MMR at second visit

(n = 245)

Overall

(n = 738)

Mean Age, months (SD)

12.6 (0.3)

12.6 (0.3)

12.6 (0.3)

12.6 (0.3)

Mean Weight, kg (SD)

9.8 (1.3)

9.5 (1.2)

9.6 (1.0)

9.7 (1.2)

Mean Height, cm (SD)

74.7 (3.3)

74.1 (3.2)

74.4 (2.9)

74.4 (3.1)

 

n (%)

n (%)

n (%)

n (%)

Male sex

117 (48.0)

134 (53.8)

138 (56.3)

389 (52.7)

Breastfeeding

    

 No

42 (17.2)

53 (21.3)

44 (18.0)

139 (18.9)

 Yes, exclusively

4 (1.6)

6 (2.4)

0

10 (1.4)

 Yes, not exclusively

198 (81.2)

190 (76.3)

201 (82.0)

589 (79.8)

Baseline seropositivity

    

 Measles

1 (0.4)

4 (1.6)

0

5 (0.7)

 Rubella

2 (0.8)

6 (2.4)

2 (0.8)

10 (1.4)

 Mumps

1 (0.4)

6 (2.4)

4 (1.6)

11 (1.5)

 Yellow Fever (PRNT50)

0

5 (2.0)

2 (0.8)

7 (1.0)

  1. Data shown are n (%) or mean (standard deviation)
  2. MMR = Measles, Mumps, and Rubella vaccine. YF = Yellow Fever vaccine. PRNT50 = Plaque Reduction Neutralization Test with 50% cut-off. kg = kilograms. cm = centimeters.
  3. Only 4 (1.6%) positive at baseline using PRNT with 90% cut-off (PRNT90)