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Table 2 Baseline characteristics of the subjects that participated in the study

From: Evaluation of the safety, tolerance and efficacy of 1-year consumption of infant formula supplemented with Lactobacillus fermentum CECT5716 Lc40 or Bifidobacterium breve CECT7263: a randomized controlled trial

  CG
(n = 77)
Lf
(n = 83)
Bb
(n = 76)
Male/female, n (%) 41/36 (53.2/46.8) 48/35 (57.8/42.2) 39/37 (51.3/48.7)
Age at enrolment (weeks), mean ± SD 3.73 ± 0.93 3.80 ± 1.11 3.75 ± 1.19
Birth weight (kg), mean ± SD 3.21 ± 0.5 3.18 ± 0.4 3.17 ± 0.59
Delivery by cesarean (%) 27.3 26.5 32.9
Gestational age (weeks) mean ± SD 39.0 ± 1.5 39.2 ± 1.3 38.9.2 ± 1.7
Age of mother at birth (years) mean ± SD 34.41 ± 2.3 34.06 ± 1.3 33.93 ± 1.7
Breast feeding (days) mean ± SD 6.13 ± 9.6 4.06 ± 7.8 5.25 ± 8.9
Smoking during pregnancy (%) 16.7 14.5 19.2
Smoking during lactacion (%) 15.6 12.2 17.9
Smoking in the household (%) 42.9 38.6 48.7
Older siblings (%) 61.5 50.6 51.3
Weight of mother (kg) mean ± SD 70.8 ± 13.95 69.8 ± 14.2 70.7 ± 14.1
Pets at home (%) 26.0 32.5 42.1