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Table 1 Comparison of mean values and the frequencies of crucial child and maternal characteristics from the main analysis group with the original MUSP cohort

From: Rapid growth in early childhood associated with young adult overweight and obesity – evidence from a community based cohort study

   Original cohort Main analysis set  
Parameter   N % or Mean (SD) N % or Mean (SD) P value*
Gender Male 3579 51.7 1025 49.4 0.06
Female 3348 48.3 1052 50.6
Gestation (weeks)   6927 39.6 (1.27) 2077 39.6 (1.28) 1
Birth weight (g)   6926 3430 (469) 2077 3438 (462) 0.5
Z-score of birth weight   6925 0.05 (0.98) 2077 0.08 (0.96) 0.2
Z-score of weight at 6 months   5451 −0.19 (1.44) 2077 −0.17 (1.2) 0.6
Z-score of weight gain 0–6 months   5450 −0.25 (1.50) 2077 −0.25 (1.27) 1
Absolute weight at 5 years (kg)   3827 20.5 (3.1) 1910 20.5 (3.0) 1
Z-score weight at 5 years   3927 0.25 (1.01) 1910 0.28 (0.99) 0.7
Z-score of early childhood weight gain 0–5 years   3826 0.16 (1.19) 1910 0.14 (1.17) 1
Height at 21 years (cm)   2550 171.7 (9.2) 2077 172 (9.3) 0.3
Weight at 21 years (kg)   2522 71.7 (16.2) 2077 71.7 (16.2) 1
BMI at 21 years (kg/m2)   2522 24.2 (4.96) 2077 24.2 (4.9) 1
Waist circumference (cm)   2523 81.7 (12.4) 2074 81.7 (12.3) 1
Waist to hip ratio   2520 0.83 (0.08) 2072 0.83 (0.08) 1
Breast feeding Yes ≥4 months 1911 29.9 731 35.3 <0.001
Yes <4 months 3142 49.1 1000 48.2
Not at all 1344 21 342 16.5
Parity–previous births No birth 2804 40.5 863 41.6 0.1
1 2128 30.7 650 31.3
2 1186 17.1 361 17.4
≥3 809 11.7 203 9.8
Mother’s education–FVC Incomplete high 1240 18.1 318 15.4 <0.001
Complete high 4422 64.3 1322 64.1
Post high 1213 17.6 424 20.5
Parents’ racial background Caucasian 6008 89.4 1885 93.3 <0.001
Asian 290 4.3 68 3.4
Abor-Islander 424 6.3 68 3.4
Maternal smoking–FVC None 4271 62.2 1373 66.6 0.001
Smoker 2010 29.3 545 26.4
Heavy 581 8.5 143 6.9
Mother’s age at birth (years)   6927 25.5 (5.10) 2077 26.0 (5. 0) <0.001
Mother’s Pre-pregnancy BMI (kg/m2)   6395 21.9 (3.90) 1958 21.9 (3.7) 0.8
  1. BMI body mass index, FVC first visit to clinic
  2. *P-value indicates the level of significance; for categorical outcome, X2 test was applied; for continuous outcome, F test was used. Level of significance was set <0.05