. 2022 Feb 2;11:e3. doi: 10.1017/jns.2022.1

Table 2.

Reproducibility of the FFQ for CVD-related food groups and nutrients using PCCs and ICCs in Northwest Mexican adolescents (n 221)

CVD-related food groups and nutrients	PCC men (n 119)	PCC women (n 102)	PCC total (n 221)	ICC total (n 221)
Fruits & vegetables (cups/d)^a	0·68^*	0·77^*	0·71^*	0·79^*
Fish & shellfish (oz/wk)^a	0·78^*	0·70^*	0·74^*	0·77^*
Sodium (mg/d)^a	0·76^*	0·62^*	0·70^*	0·80^*
SSBs (oz/wk)	0·52^*	0·51^*	0·55^*	0·65^*
Whole grains (g/d)	0·63^*	0·62^*	0·63^*	0·77^*
Nuts & seeds (oz/wk)^a	0·80^*	0·59^*	0·71^*	0·77^*
Legumes (cups/wk)^a	0·57^*	0·62^*	0·59^*	0·65^*
Nuts, seeds & legumes mean (servings/wk)^a	0·73^*	0·65^*	0·70^*	0·80^*
Processed meats (oz/wk)^a	0·67^*	0·62^*	0·66^*	0·76^*
Saturated fat (kcal/d)^a	0·51^*	0·50^*	0·50^*	0·55^*
Saturated fat (%kcal/d)^a	0·40^*	0·39^*	0·40^*	0·53^*

FFQ, food frequency questionnaire; CVD, cardiovascular disease; PCC, Pearson's correlation coefficient; ICC, intraclass correlation coefficient; wk, week; SSB, sugar-sweetened beverage.

Squared root-transformed value.

P < 0·001.