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Table 4 Bivariate correlation coefficients (according to Pearson) for regulation problems (T1, T2), children`s developmental levels (T1, T2, T3), maternal stress levels and dysfunctionality of the mother-child interaction (T1)

From: Influence of early regulatory problems in infants on their development at 12 months: a longitudinal study in a high-risk sample

  SFS C/S T1 SFS F T1 ASQ C T1 ASQ GM T1 ASQ FM T1 ASQ PS T1 ASQ SD T1 PSI PD T1 PSI DI T1 SFS C/S T2 SFS F T2 ASQ C T2 ASQ GM T2 ASQ FM T2 ASQ PS T2 ASQ SD T2 ASQ C T3 ASQ GM T3 ASQ FM T3 ASQ PS T3 ASQ SD T3
SFS C/S T1 1                     
N = 153
SFS F T1 .298*** 1                    
N = 153 N = 153
ASQ C T1 n.s. n.s. 1                   
N = 153
ASQ GM T1 n.s. n.s. .393*** 1                  
N = 153 N = 153
ASQ FM T1 n.s. n.s. .296*** .376*** 1                 
N = 153 N = 153 N = 153
ASQ PS T1 n.s. n.s. .334*** .434*** .548*** 1                
N = 151 N = 151 N = 151 N = 151
ASQ SD T1 n.s. n.s. .385*** .389*** .400*** .544*** 1               
N = 152 N = 152 N = 152 N = 150 N = 152
PSI PD T1 .353*** .237** n.s. n.s. n.s. n.s. n.s. 1              
N = 127 N = 127 N = 127
PSI DI T1 .291*** .277** n.s. n.s. n.s. n.s. n.s. .533*** 1             
N = 126 N = 126 N = 126 N = 126
SFS C/S T2 .570*** .284** n.s. n.s. n.s. n.s. n.s. .349*** .278** 1            
N = 140 N = 140 N = 121 N = 120 N = 140
SFS F T2 .223** .573*** n.s. n.s. n.s. n.s. n.s. .305*** .313*** .419*** 1           
N = 140 N = 140 N = 121 N = 120 N = 140 N = 140
ASQ C T2 n.s. n.s. .297*** .242** .235** .247** .382*** n.s. n.s. n.s n.s 1          
N = 137 N = 137 N = 137 N = 135 N = 136 N = 137
ASQ GM T2 n.s. n.s. .242** .292*** .372*** .286*** .171* n.s. n.s. n.s n.s .259** 1         
N = 138 N = 138 N = 138 N = 136 N = 137 N = 137 N = 138
ASQ FM T2 n.s. n.s. .211* .187* .320*** .252** .266** n.s. n.s. n.s. n.s. .378*** .191* 1        
N = 134 N = 134 N = 134 N = 132 N = 133 N = 133 N = 134 N = 134
ASQ PS T2 -.173* n.s. .221* .321*** .403*** .296*** .282** n.s. n.s. n.s. n.s. .338*** .446*** .292*** 1       
N = 137 N = 137 N = 137 N = 137 N = 135 N = 136 N = 136 N = 137 N = 134 N = 137
ASQ SD T2 n.s. n.s. n.s. .332*** .397*** .401*** .292*** n.s. n.s. n.s. n.s. .236** .475*** .247** .331*** 1      
N = 137 N = 137 N = 135 N = 136 N = 136 N = 137 N = 134 N = 137 N = 137
ASQ C T3 n.s. n.s. .311*** .189* .249** .208* .289*** -.228* -.216* n.s. n.s. .400** .342*** .339*** .341*** .257** 1     
N = 123 N = 123 N = 123 N = 121 N = 122 N = 109 N = 108 N = 119 N = 120 N = 116 N = 119 N = 119 N = 123
ASQ GM T3 n.s. n.s. n.s. n.s. .291*** .353*** .310*** n.s. n.s. n.s. n.s. .299*** .432*** n.s n.s. .449*** .212* 1    
N = 122 N = 120 N = 121 N = 118 N = 119 N = 118 N = 122 N = 122
ASQ FM T3 n.s. n.s. n.s. .355*** .293*** .297*** .277** n.s. n.s. n.s. n.s. .257** .345*** .281** .289** .380*** .344*** .259** 1   
N = 122 N = 122 N = 120 N = 121 N = 118 N = 119 N = 115 N = 118 N = 118 N = 122 N = 121 N = 122
ASQ PS T3 n.s. n.s. n.s. n.s. n.s. n.s. n.s. n.s. n.s. n.s. n.s. .206* n.s. n.s .193* n.s. .277** .193* .257** 1  
N = 116 N = 116 N = 120 N = 119 N = 120 N = 120
ASQ SD T3 -.217* n.s. .235** .314*** .446*** .300*** .284*** n.s. n.s. -.237** -.216* .309*** .459*** .347*** .487*** .487*** .496*** .421*** .509*** .273**  
N = 123 N = 123 N = 123 N = 123 N = 121 N = 122 N = 122 N = 122 N = 119 N = 120 N = 116 N = 119 N = 119 N = 123 N = 122 N = 122 N = 120
  1. SFS: Questionnaires on Crying, Feeding and Sleep; C/S: “Crying / Sleep”; F: “Feeding”; PSI: Parental Stress Index; PD: “Parental distress”; DI: “Dysfunctional parent–child interaction”; ASQ: Ages and Stages Questionnaire; C: “Communication”; GM: “Gross motor skills”; FM: “Fine motor skills”; PS: “Problem-solving skills”; SD: “Social development”; ***: p ≤ 0.001; **: p ≤ 0.01; *p ≤ 0.05; n.s.: not significant.