Table 3.

Correlation between nutrient intake FFQ and average of multiple 24-hour dietary recalls among pregnant women living in the urban areas of Pune, India, between 2016 and 2019 and participating in the FFQ validation study (n 58)

(Correlation coefficients and 95 % confidence intervals)

	Unadjusted correlation			Energy-adjusted*			Energy-adjusted and de-attenuated correlation†
Nutrient	Log-transformed Pearson’s r	95 % CI	P	Correlation coefficient	95 % CI	P
Energy	0·47	0·24, 0·65	0·0002
Protein	0·48	0·25, 0·66	0·0001	0·44	0·21, 0·63	0·0006	0·50
Carbohydrate	0·45	0·22, 0·63	0·0004	0·47	0·24, 0·65	0·0002	0·52
Fat	0·33	0·08, 0·54	0·01	0·42	0·18, 0·62	0·0011	0·50
Saturated fat	0·23	−0·03, 0·46	0·09	0·36	0·12, 0·57	0·0053	0·41
PUFA	0·11	−0·15, 0·36	0·41	0·40	0·15, 0·60	0·0022	0·49
Cholesterol	0·54	0·32, 0·70	<0·0001	0·40	0·15, 0·60	0·0028	0·49
Vitamin B1	0·32	0·06, 0·53	0·02	0·43	0·19, 0·62	0·0008	0·49
Vitamin B2	0·45	0·22, 0·63	0·0004	0·45	0·21, 0·64	0·0005	0·50
Vitamin A (retinol activity equivalents)	0·26	0·0008, 0·48	0·05	0·39	0·14, 0·59	0·003	0·52
Vitamin C	0·28	0·02, 0·50	0·04	0·51	0·29, 0·68	<0·0001	0·64
Ca	0·38	0·14, 0·58	0·003	0·44	0·21, 0·63	0·0005	0·50
Fe	0·40	0·15, 0·60	0·002	0·46	0·22, 0·64	0·0003	0·54
P	0·41	0·17, 0·60	0·002	0·41	0·17, 0·61	0·001	0·46
K	0·33	0·08, 0·54	0·01	0·47	0·24, 0·65	0·0002	0·54
Na	0·26	0·001, 0·49	0·05	0·54	0·33, 0·70	<0·0001	0·73
Zn	0·54	0·33, 0·70	<0·0001	0·51	0·29, 0·68	<0·0001	0·57

^*Adjusted for total energy intake using residuals generated from the model with energy as independent variable and nutrient intake as dependent variable.

^†Correlation coefficients de-attenuated to account for random measurement error calculated by ANOVA.