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. 2012 Nov 21;2012:878607. doi: 10.1155/2012/878607

Table 3.

Pearson correlations (r) between gestational weight gain, pregravid BMI, disordered eating, sleep, and mood variables.

Correlation n Gest. weight gain Pregravid BMI NEQ total Restraint scale item No. of overeating episodes past 4 weeks No. of binge episodes with loss of control Minutes to fall asleep Hours of sleep Sleep quality EPDS total Parity Smoking status
Gestational weight gain 1.00
105		                      
Pregravid BMI −0.025
105		 1.000
119		                    
NEQ total 0.053
96		 −0.040
109		 1.000
110		                  
Restraint scale item −0.023
83		 0.221*  
95		 −0.033
89		 1.000
95		                
No. of overeating episodes past 4 weeks 0.057
95		 −0.021
107		 0.184
99		 0.085
86		 1.000
107		              
No. of binge episodes with loss of control 0.104
96		 0.008
108		 0.343**  
101		 −0.020
86		 0.655**  
105		 1.000
109		            
Minutes to fall asleep −0.094
96		 −0.038
110		 0.252*  
103		 −0.013
89		 0.244*  
99		 0.078
101		 1.000
111		          
Hours of sleep 0.055
97		 0.114
110		 −0.283**  
104		 −0.108
88		 −0.177
100		 −0.086
102		 −0.362**  
105		 1.000
111		        
Sleep quality 0.099
102		 0.068
116		 −0.428**  
109		 −0.130
94		 −0.247*  
106		 −0.255**  
108		 −0.312**  
110		 0.515**  
111		 1.000
117		      
EPDS total 0.039
100		 −0.191*  
113		 0.523**  
106		 −0.010
92		 0.255*  
104		 0.219*  
105		 0.326**  
107		 −0.234*  
108		 −0.361**  
114		 1.000
114		    
Parity −0.033
103		 0.163
115		 0.075
106		 0.138
92		 0.169
103		 0.085
105		 0.041
107		 −0.065
107		 −0.167
113		 0.119
110		 1.000
116		  
Smoking status −0.098
93		 −0.094
105		 0.144
97		 0.138
85		 0.287**  
94		 0.167
96		 0.069
98		 −0.160
98		 −0.183
103		 0.239*  
100		 0.263**  
106		 1.000
106

**Correlation is significant at the ≤0.01 level (2 tailed). *Correlation is significant at the ≤0.05 level (2 tailed).

Note: BMI is body mass index, NEQ total is the Night Eating Questionnaire total score, EPDS is the Edinburgh Postnatal Depression Scale. The restraint scale item is from the Eating Inventory. Sleep variables are subscales of the Pittsburgh Sleep Quality Index. Parity is the number of previous live births. Smoking status indicated whether they smoked or not during pregnancy. Higher scores on the NEQ, EPDS, and the subscales of the Pittsburgh Sleep Quality Index indicate more pathology. Higher scores on the restraint scale item indicate a higher cognitive restraint over eating.