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Table 2 Descriptive statistics of (A) maternal perceived stress scores. Given are median, min, max, and quartile boundaries (n=498). (B) BMI z-score categories within the analyzed sub-cohorta

From: Early maternal perceived stress and children’s BMI: longitudinal impact and influencing factors

A - Stress score median min max <25 % >75%
 pregnancy 1.9 1.0 3.6 1.6 2.3
 year 1 2.0 1.1 3.9 1.7 2.4
 year 2 2.2 1.0 3.9 1.9 2.5
B - BMI z-scorea Year 1 n = 487(%) Year 2 n = 456(%) Year 3 n = 428(%) Year 4 n = 394(%) Year 5 n = 352(%)
 < 0 Underweight 112 (23.0) 25 (5.5) 43 (10.0) 40 (10.2) 45 (12.8)
 0 < 1 Normal weight 336 (69) 307 (67.3) 309 (72.2) 303 (76.9) 266 (75.6)
 ≥ 1 Overweight 39 (8.0) 124 (27.2) 76 (17.8) 51 (12.9) 41 (11.6)
  1. aCategorization based on WHO-reference data