Table 1

Characteristics of the study population by any adult abuse in the Norwegian Mother and Child Cohort Study (N=53 934)

TotalAny adult abusep Value*
nPer centnPer cent
All53 93410010 44219.4
BF initiation
 No6181.114723.80.005
 Yes53 31698.910 29519.3
Full BF for 4 months
 No20 99138.9451021.5<0.001
 Yes32 32559.9578517.9
 No BF initiation618
Full BF for 6 months
 No45 80284.9889619.40.102
 Yes751413.9139918.6
 No BF initiation618
Any BF for 4 months
 No653912.1158824.3<0.001
 Yes46 77786.7870718.6
 No BF initiation147
Any BF for 6 months
 No10 34119.2244523.6<0.001
 Yes42 94579.7785018.3
 No BF initiation618147
Age (years)
 14–196931.310114.6<0.001
 20–24642311.9116218.1
 25–2919 62836.4338317.2
 30–3421 94540.7439020.0
 ≥3552459.7140626.8
Education
 Primary (9 years)11952.233227.8<0.001
 Secondary (12 years)15 90229.5355622.4
 Higher ≤4 years31 43258.3521816.6
 Higher >4 years35446.691025.7
 Missing information18613.542622.9
Civil status
 Married26 57249.3450417.0<0.001
 Cohabiting25 54347.4528920.7
 Not married/cohabiting15232.857838.0
 Missing information2960.57124.0
Child abuse
 No44 06481.7720916.4<0.001
 Yes987018.3323332.8
Parity
 027 66651.3515518.6<0.001
 +126 26848.7528720.1
Mode of delivery
 Vaginal50 29693.3962719.1<0.001
 C-section36386.781522.4
Preterm delivery
 No (≥37 weeks)51 25895.0987419.30.026
 Yes (<37 weeks)24724.652121.1
 Missing information2040.44723.0
Smoking in pregnancy
 No49 10091.0895418.2<0.001
 Yes48349.0148830.8
Alcohol in pregnancy
 Never38 93172.2749418.8<0.001
 Sometimes722113.4162822.5
 Daily470.11940.4
 Missing information670512.4130119.4
BMI
 <2535 38966.5670018.7<0.001
 ≥2516 55230.7342220.7
 Missing information14902.832021.5
Postpartum depression
 No47 34987.8837017.7<0.001
 Yes571610.6189733.2
 Missing information8691.617520.1
  • *p Value calculated using Pearson's χ2 test (missing category not included).

  • BF, breast feeding; BMI, body mass index.