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Table 3 Sample characteristics

From: Can a text message a week improve breastfeeding?

Characteristic Intervention group Comparison group p value*
(n = 114) (n = 86)
Average age of mother (years) 31 ± 4 30 ± 5  
Average age of infant at start of trial (days) 61 ± 30 47 ± 24  
Mother's education (%)    
Year 10 or less 7 6  
Year 12 10 11 ns
Post highschool qual. 22 21  
University 61 63  
Don't want to say 1 0  
Income (%)    
Less than $25 000 (AUD) 5 1  
$25-50 000 12 8 0.03
$50-100 000 40 37  
Over $100 000 35 40  
Don't know or don't want to say 7 13  
Index of advantage (decile)    
High advantage =7-10 47 52 ns
Med advantage =4-6 36 23  
Low advantage =1-3 17 24  
Rural/remote score    
1 (major city, highly accessible) 61 58 ns
2 (inner regional, accessible) 17 16  
3 (outer regional, mod. accessible) 14 19  
4 (remote, remote) 4 7  
5 (very remote, very remote) 4 0  
Relationship status 95 98 ns
Married - Yes    
C-Section (including elective and emergency) 33 31 ns
Yes    
Member of the Australian Breastfeeding Association 45 25  
Yes    
  1. *Chi-square test was used to assess the proportional differences for categorical variables, whereas the student t test was used to assess the mean differences for continuous variables.