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Table 3 Descriptive statistics and Pearson correlation coefficients for three week-28 diet recalls and the HSFFQ3 a

From: Use of a food frequency questionnaire in American Indian and Caucasian pregnant women: a validation study

 

Overall

By ethnicity

By poverty level

 

All Phase 2 participants

American Indian

Caucasian

≤ 100%

101–185%

Nutrient

Mean of week-28 recalls (SD)

Mean of HSFFQ3 (SD)

Adjusted r b

Deattenuated r c (95%CI)

Deattenuated r c (95%CI)

Deattenuated r c (95% CI)

Deattenuated r c (95% CI)

Deattenuated r c (95% CI)

Calories (kcal)

2162 (592)

2010 (735)

NA

NA

NA

NA

NA

NA

Carbohydrates (g)

286 (79)

246 (89)

0.26

0.35 (0.18, 0.50)

0.23 (-0.06, 0.49)

0.41 (0.21, 0.58)

0.43 (0.22, 0.60)

0.17 (-0.11, 0.42)

Protein (g)

81 (26)

82 (31)

0.29

0.40 (0.23, 0.54)

0.10 (-0.18, 0.37)

0.55 (0.34, 0.71)

0.45 (0.24, 0.63)

0.28 (-0.01, 0.53)

Dietary fiber (g)

15 (6)

13 (6)

0.31

0.43 (0.27, 0.57)

0.02 (-0.30, 0.33)

0.60 (0.41, 0.74)

0.51 (0.28, 0.69)

0.35 (0.10, 0.56)

Total fat (g)

80 (28)

81 (35)

0.48

0.63 (0.47, 0.75)

0.51 (0.18, 0.74)

0.66 (0.48, 0.79)

0.68 (0.50, 0.81)

0.45 (0.14, 0.68)

Saturated fat (g)

29 (11)

32 (13)

0.46

0.62 (0.46, 0.74)

0.42 (0.14, 0.64)

0.70 (0.49, 0.83)

0.65 (0.46, 0.78)

0.52 (0.23, 0.72)

Monounsaturated fat (g)

30 (12)

31 (13)

0.41

0.57 (0.38, 0.70)

0.53 (0.12, 0.79)

0.54 (0.33, 0.70)

0.64 (0.42, 0.80)

0.35 (0.04, 0.60)

Polyunsaturated fat (g)

14 (6)

13 (6)

0.21

0.33 (0.10, 0.52)

0.37 (-0.08, 0.69)

0.30 (0.03, 0.52)

0.41 (0.14, 0.63)

0.15 (-0.24, 0.50)

Omega 3 fatty acids (g)

0.04 (0.10)

0.04 (0.05)

0.26

0.52 (-0.12, 0.86)

0.33 (-0.14, 0.67)

-

0.67 (-0.43, 0.97)

0.35 (-0.70, 0.92)

Percent energy from fat

33 (5)

36 (5)

NA

NA

NA

NA

NA

NA

Cholesterol

267 (148)

265 (128)

0.29

0.47 (0.24, 0.64)

0.35 (0.03, 0.61)

0.45 (-0.02, 0.76)

0.47 (0.17, 0.69)

0.45 (0.07, 0.72)

Sucrose

47 (23)

29 (13)

0.23

0.27 (0.09, 0.43)

0.23 (-0.07, 0.50)

0.27 (0.06, 0.47)

0.21 (-0.01, 0.40)

0.50 (0.17, 0.72)

Calcium

1364 (639)

1464 (502)

0.39

0.48 (0.33, 0.60)

0.39 (0.07, 0.63)

0.39 (0.20, 0.55)

0.47 (0.27, 0.62)

0.52 (0.28, 0.70)

Iron (mg)

61 (30)

59 (21)

0.44

0.51 (0.38, 0.63)

0.51 (0.25, 0.70)

0.50 (0.33, 0.64)

0.68 (0.50, 0.80)

0.35 (0.11, 0.55)

Magnesium (mg)

291 (105)

271 (98)

0.39

0.50 (0.35, 0.62)

0.43 (0.08, 0.69)

0.55 (0.36, 0.69)

0.49 (0.29, 0.66)

0.52 (0.28, 0.70)

Phosphorus (mg)

1475 (517)

1565 (537)

0.36

0.46 (0.30, 0.59)

0.26 (-0.04, 0.52)

0.42 (0.22, 0.59)

0.41 (0.20, 0.59)

0.54 (0.29, 0.73)

Zinc (mg)

30 (13)

31 (10)

0.48

0.60 (0.46, 0.72)

0.55 (0.27, 0.75)

0.58 (0.41, 0.71)

0.79 (0.61, 0.89)

0.41 (0.15, 0.61)

Vitamin A (IU)

11926 (9178)

10943 (4962)

0.25

0.35 (0.19, 0.50)

0.32 (0.01, 0.57)

0.36 (0.15, 0.53)

0.42 (0.19, 0.60)

0.28 (0.03, 0.50)

Vitamin E (mg)

16 (7)

13 (4)

0.34

0.44 (0.28, 0.58)

0.38 (0.07, 0.63)

0.45 (0.27, 0.61)

0.62 (0.42, 0.76)

0.26 (-0.01, 0.49)

Vitamin C (mg)

189 (84)

220 (88)

0.31

0.40 (0.24, 0.54)

0.26 (-0.06, 0.52)

0.41 (0.21, 0.57)

0.42 (0.21, 0.59)

0.37 (0.10, 0.58)

Vitamin B1 (mg)

3 (1)

3 (1)

0.38

0.52 (0.37, 0.65)

0.51 (0.22, 0.72)

0.51 (0.32, 0.66)

0.60 (0.41, 0.74)

0.43 (0.16, 0.65)

Vitamin B2 (mg)

4 (1)

4 (1)

0.44

0.56 (0.42, 0.68)

0.58 (0.30, 0.77)

0.52 (0.34, 0.67)

0.66 (0.48, 0.79)

0.46 (0.22, 0.65)

Niacin (mg)

36 (11)

34 (10)

0.32

0.45 (0.29, 0.58)

0.38 (0.12, 0.60)

0.51 (0.30, 0.68)

0.54 (0.35, 0.69)

0.31 (0.03, 0.54)

Folate (mcg)

888 (372)

936 (302)

0.45

0.55 (0.40, 0.66)

0.53 (0.23, 0.74)

0.52 (0.34, 0.66)

0.66 (0.47, 0.79)

0.42 (0.18, 0.61)

Vitamin B6 (mg)

4 (1)

4 (1)

0.41

0.52 (0.37, 0.64)

0.40 (0.13, 0.62)

0.54 (0.36, 0.69)

0.60 (0.41, 0.74)

0.42 (0.17, 0.62)

Vitamin B12 (mcg)

9 (4)

9 (4)

0.31

0.46 (0.30, 0.60)

0.27 (-0.07, 0.55)

0.53 (0.33, 0.69)

0.48 (0.26, 0.66)

0.42 (0.15, 0.64)

 

Average correlation:

0.35

0.47

0.37

0.50

0.54

0.40

  1. SD, standard deviation; CI, confidence interval
  2. a Excluded if calories > 4500 (n = 2) or age < 16 (n = 2) on the HSFFQ3 (n = 242)
  3. b Adjusted for total energy intake
  4. c Adjusted for total energy intake and corrected for random within-person variation; omega 3 fatty acids and polyunsaturated fat not included in average deattenuated correlations stratified by ethnicity and poverty level