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Table 2 Data on the children after birth and at the first measurement point T1

From: Influence of early regulatory problems in infants on their development at 12 months: a longitudinal study in a high-risk sample

  M (SD) N*
Birth during gestational week 38.77(2.32) 148
Weight at birth (g) 3159.31 (634.08) 152
Age T1 (weeks, corrected due to prematurity) 18.73 (2.66) 152
  n (%) N*
Gender/male 80 (52.3%) 153
Premature infant (birth < 37 SSW) 17 (11.5%) 148
Low gestational weight (< 2500 g) 23 (15.1%) 152
  1. *The variance of the N values depends on different return rates.