Table 2.

Geometric means with 95% CI and CVs for total sugars intake and total sugars density assessed by FFQ, 24HR, 4DFR, and urinary sugars biomarker among NPAAS (2007–2009) participants (primary study, n = 450; reliability study, n = 88)

	Total sugars intake, g/d				Total sugars density, g/1,000 kcal
Instrument	n	Geometric mean (95% CI)	CV	n	Geometric mean (95% CI)	CV
FFQ^a	450	82.4 (78.7–86.4)	0.54	450	56.6 (55.0–58.3)	0.32
FFQ^b	88	82.8 (75.1–91.3)	0.50	88	55.1 (51.4–59.1)	0.34
4DFR^a	450	86.5 (83.3–89.8)	0.42	450	53.5 (51.9–55.1)	0.33
4DFR^b	88	83.8 (77.4–90.7)	0.39	88	52.0 (49.0–55.2)	0.29
First 24HR^a	398	80.1 (75.8–84.6)	0.60	398	52.3 (50.1–54.6)	0.46
Second 24HR^a	425	80.2 (76.0–84.6)	0.61	425	54.0 (51.8–56.3)	0.46
Third 24HR^a	421	82.0 (77.9–86.3)	0.57	421	53.5 (51.4–55.6)	0.43
24HR^a (3-day avg.)	440	85.1 (81.8–88.5)	0.44	440	54.8 (53.2–56.4)	0.32
First 24HR^b	86	78.7 (69.9–88.7)	0.61	86	52.7 (48.2–57.8)	0.45
Second 24HR^b	83	81.5 (71.2–93.4)	0.70	83	51.4 (45.8–57.8)	0.58
Third 24HR^b	82	72.3 (62.7–83.4)	0.74	82	48.8 (43.4–55.0)	0.59
24HR^b (3-day avg.)	87	82.4 (75.1–90.5)	0.47	87	53.1 (49.4–57.2)	0.36
Biomarker^a^,^c	384	158.8 (145.6–173.1)	1.06	351	78.3^d (71.6–85.6)	1.03
Biomarker^b^,^c	78	173.9 (142.9–211.6)	1.09	73	82.9^d (67.3–102.2)	1.14

↵^aCollected in the primary study.
↵^bCollected in the reliability study.
↵^cCalibrated using the measurement error parameters generated from the feeding study (17).
↵^dEnergy intake estimated by DLW measurement of total energy expenditure.