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Table 1 Parents’ baseline socioeconomic characteristics, education, and smoking behavior by study group: the Baby Newsletter and the control group, with complete follow up

From: Evaluation of an intervention aimed at supporting new parents: the Baby Newsletter project

Characteristics Newsletter group1 with complete follow up Control group2 with complete follow up Total p-value(1 vs 2)
  N m (sd) N m (sd) N m (sd) N m (sd) N m (sd)  
Child’s age when baseline questionnaire was completed (days) 57 8.0 (11.4) 30 7.3 (9.7) 72 2.6 (1.5) 49 2.4 (1.4) 129 5.0 (8.0) < 0.01+
  N % N % N % N % N %  
Who is completing the questionnaire Mother 43 75.4 22 73.3 50 66.7 32 62.7 93 70.5 0.274*
Father 14 24.6 8 26.7 25 33.3 19 37.3 39 29.5  
Missing 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0  
Home ownership Yes 43 75.4 25 83.3 56 74.7 39 76.5 99 75.0 0.975*
No 14 24.6 5 16.7 18 24.0 11 21.6 32 24.2  
Missing 0 0.0 0 0.0 1 1.3 1 2.0 1 0.8  
Mother’s education level Primary school 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0.355*
Medium school 9 15.8 2 6.7 9 12.0 5 9.8 18 13.6  
High school 27 47.4 12 40.0 29 38.7 19 37.3 56 42.4  
University 21 36.8 16 53.3 37 49.3 27 52.9 58 43.9  
missing 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0  
Father’s education level Primary school 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0.574*
Medium school 12 21.1 5 16.7 11 14.7 9 17.6 23 17.4  
High school 35 61.4 20 66.7 48 64.0 29 56.9 83 62.9  
University 9 15.8 5 16.7 15 20.0 12 23.5 24 18.2  
missing 1 1.8 0 0.0 1 1.3 0 0.0 2 1.5  
Mother’s profession Worker 5 8.8 3 10.0 8 10.7 5 9.8 13 9.8 0.929#
Employee 21 36.8 11 36.7 32 42.7 22 43.1 53 40.2  
Freelance 7 12.3 5 16.7 6 8.0 5 9.8 13 9.8  
Housewife 6 10.5 2 6.7 5 6.7 3 5.9 11 8.3  
Unemployed 6 10.5 2 6.7 10 13.3 8 15.7 16 12.1  
Manager 1 1.8 0 0.0 1 1.3 1 2.0 2 1.5  
Other 9 15.8 7 23.3 13 17.3 7 13.7 22 16.7  
missing 2 3.5 0 0.0 0 0.0 0 0.0 2 1.5  
Father’s profession Worker 14 24.6 8 26.7 17 22.7 11 21.6 31 23.5 0.997#
Employee 19 33.3 11 36.7 25 33.3 19 37.3 44 33.3  
Artisan 5 8.8 2 6.7 7 9.3 5 9.8 12 9.1  
Freelance 9 15.8 4 13.3 12 16.0 6 11.8 21 15.9  
Unemployed 1 1.8 0 0.0 3 4.0 1 2.0 4 3.0  
Manager 2 3.5 1 3.3 2 2.7 2 3.9 4 3.0  
Other 7 12.3 4 13.3 8 10.7 6 11.8 15 11.4  
missing 0 0.0 0 0.0 1 1.3 1 2.0 1 0.8  
Gross family income Up to €36,152 33 57.9 19 63.3 43 57.3 31 60.8 76 57.6 0.905#
From €36,153 to €70,000 21 36.8 10 33.3 29 38.7 18 35.3 50 37.9  
From €70,001 to €100,000 1 1.8 0 0.0 2 2.7 1 2.0 3 2.3  
Over € 100.000 2 3.5 1 3.3 1 1.3 1 2.0 3 2.3  
missing 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0  
Antenatal course Yes 42 73.7 21 70.0 59 78.7 41 80.4 101 76.5 0.414*
No 15 26.3 9 30.0 15 20.0 9 17.6 30 22.7  
missing 0 0.0 0 0.0 1 1.3 1 2.0 1 0.8  
Other children 0 30 52.6 18 60.0 36 48.0 26 51.0 66 50.0 0.676#
1 20 35.1 8 26.7 29 38.7 20 39.2 49 37.1  
2 4 7.0 1 3.3 6 8.0 2 3.9 10 7.6  
3 0 0.0 0 0.0 2 2.7 1 2.0 2 1.5  
> 3 1 1.8 1 3.3 0 0.0 0 0.0 1 0.8  
missing 2 3.5 2 6.7 2 2.7 2 3.9 4 3.0  
Smoking habit during pregnancy Yes 4 7.0 1 3.3 2 2.7 2 3.9 6 4.5 0.404#
No 52 91.2 29 96.7 69 92.0 48 94.1 121 91.7  
missing 1 1.8 0 0.0 4 5.3 1 2.0 5 3.8  
Mother a smoker? Yes 5 8.8 1 3.3 8 10.7 5 9.8 13 9.8 0.717*
No 52 91.2 29 96.7 67 89.3 46 90.2 119 90.2  
missing 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0  
Father a smoker? Yes 17 29.8 6 20.0 20 26.7 15 29.4 37 28.0 0.664*
No 38 66.7 23 76.7 53 70.7 35 68.6 91 68.9  
missing 2 3.5 1 3.3 2 2.7 1 2.0 4 3.0  
Total   57 100.0 30 100.0 75 100.0 51 100.0 132 100.0  
  1. chi-square test(*) or Fisher’s exact test (#) or t-test (+) – Newsletter group vs control group, all regardless of the length of follow-up