Table 4.

Principle component analysis of dietary glycemic index during pregnancy and DNA methylation levels in five-year-old offspring (n = 60).

	Individual	T1 GI	T2 GI	T3 GI
PC1 correlation	−0.074	−0.008	−0.013	0.024
PC1 p-value	0.574	0.951	0.923	0.857
PC2 correlation	0.057	0.034	0.167	0.178
PC2 p-value	0.667	0.799	0.203	0.173
PC3 correlation	0.139	−0.033	−0.033	0.185
PC3 p-value	0.288	0.802	0.802	0.157
PC4 correlation	−0.077	0.042	−0.050	−0.072
PC4 p-value	0.559	0.749	0.702	0.584
PC5 correlation	−0.336 *	0.158	0.208	−0.016
PC5 p-value	0.009 *	0.229	0.112	0.906
PC6 correlation	−0.108	0.191	−0.037	0.034
PC6 p-value	0.411	0.144	0.781	0.796
PC7 correlation	−0.021	0.135	0.114	0.211
PC7 p-value	0.872	0.303	0.384	0.105
PC8 correlation	0.135	−0.091	−0.010	−0.156
PC8 p-value	0.302	0.488	0.940	0.235
PC9 correlation	−0.033	−0.264 *	−0.105	0.030
PC9 p-value	0.803	0.041 *	0.424	0.820
PC10 correlation	−0.051	−0.159	−0.081	−0.218
PC10 p-value	0.700	0.225	0.538	0.094

GI: glycemic index; PC: principal component; T1: trimester 1; T2: trimester 2; T3: trimester 3. * Significant at p < 0.05.