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Table 3 First-order correlations controlling for infant age

From: Mother-infant bonding is not associated with feeding type: a community study sample

   1 2 3 4 5 6 7 8 9 10 11
1. mother’s age R 1           
p .           
2. Income R 0.346 1          
p <.001 .          
3. First child R −0.356 −0.088 1         
p <.001 .159 .         
4. Breastfeeding groups R 0.049 0.076 0.051 1        
p .425 .223 .404 .        
5. Breastfeeding duration R 0.050 0.067 0.036 0.763 1       
p .419 .287 .559 <.001 .       
6. PBQ total R −0.017 −0.092 0.084 −0.027 − 0.024 1      
p .777 .140 .168 .656 .698 .      
7. PBQ general factor R −0.016 −0.089 0.079 0.002 −0.008 0.964 1     
  p .801 .156 .193 .972 .895 <.001 .     
8. PBQ rejection and anger R 0.020 −0.070 0.004 −0.085 −0.049 0.828 0.770 1    
  p .741 .261 .954 .162 .423 <.001 <.001 .    
9. PBQ anxiety about child R −0.041 −0.049 0.144 −0.047 − 0.018 0.819 0.705 0.595 1   
  p .512 .436 .019 .446 .763 <.001 <.001 <.001 .   
10. EPDS R 0.049 −0.050 0.002 0.064 0.063 0.531 0.513 0.423 0.476 1  
p .427 .427 .969 .295 .305 <.001 <.001 <.001 <.001 .  
11. WASO R −0.047 −0.077 0.025 0.100 0.104 0.172 0.200 0.073 0.154 0.298 1
p .444 .220 .387 .106 .093 .005 .001 .235 .013 <.001 .
12. PSQI Total R 0.030 −0.137 0.030 0.004 0.04 0.173 0.202 0.118 0.136 0.453 0.476
p .629 .028 .626 .944 .513 .004 .001 .052 .026 <.001 <.001
13. PSQI TST R −0.109 0.132 0.034 0.018 −0.062 − 0.057 −0.093 0.010 0.010 −0.167 −0.369
p .079 .037 .586 .773 .313 .352 .130 .876 .997 .006 <.001
14. PSQI SOL R −0.039 −0.051 0.053 −0.098 − 0.094 −0.009 − 0.008 −0.018 0.075 0.185 0.221
p .529 .425 .388 .114 .128 .886 .894 .767 .225 .003 .001
15. PSQI #7 R 0.062 −0.009 0.014 0.181 0.134 0.288 0.292 0.221 0.205 0.413 0.188
p .316 .887 .813 .003 .028 <.001 <.001 <.001 .001 <.001 .002
16. PSQI #1 R 0.020 −0.080 0.018 −0.038 −0.015 0.161 0.178 0.159 0.14 0.366 0.427
p .74 .201 .77 .538 .808 .008 .003 .009 .022 <.001 <.001
  1. In bold are significant correlations; PBQ Postpartum Bonding Questionnaire, EPDS Edinburgh Postnatal Depression Scale, WASO Wake After Sleep Onset, PSQI Pittsburgh Sleep Quality Index – total score, PSQI #7 daytime dysfunction component, PSQI #1 overall sleep quality component, TST Total Sleep Time, SOL Sleep Onset Latency. Correlations among PSQI components were omitted