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Table 1 Distribution of selected characteristics among females by age, NHANES 1999–2002, phthalate subsample

From: Association of urinary phthalate metabolite concentrations with body mass index and waist circumference: a cross-sectional study of NHANES data, 1999–2002

 

Females

Characteristics

6–11 yrs (n = 327)

12–19 yrs (n = 682)

20–59 yrs (n = 761)

60–80 yrs (n = 348)

Phthalate metabolites, 1 (% above LOD2)

Geometric mean (SD), μg/gm creatinine

   MEP (99)

137.7 (2.8)

207.3 (3.2)

225.6 (3.3)

218.6 (3.5)

   MBP (99)

48.0 (2.3)

30.8 (2.3)

24.6 (2.3)

25.7 (2.4)

   MBzP (98)

34.4 (2.8)

17.1 (2.7)

12.8 (2.7)

11.7 (2.7)

   MEHP (81)

5.4 (2.8)

3.8 (2.9)

4.0 (2.9)

3.3 (2.9)

   MEOHP (97)

27.5 (2.4)

15.0 (2.4)

12.5 (2.7)

12.4 (2.6)

   MEHHP (98)

39.6 (2.5)

21.1 (2.6)

18.3 (2.8)

18.4 (2.7)

 

Arithmetic mean (SD)

Age (yrs)

8.6 (1.7)

15.2 (2.3)

39.5 (11.0)

68.4 (5.94)

BMI (kg/m2)

18.5 (3.9)

24.0 (5.7)

28.9 (7.3)

29.2 (6.2)

Waist circumference (cm)

64.2 (11.1)

80.2 (13.3)

92.8 (15.3)

97.5 (14.1)

Height (cm)

135.3 (13.8)

160.9 (7.2)

161.8 (6.8)

158.6 (6.8)

Creatinine (mg/dL)

109.1 (55.5)

162.0 (87.0)

124.9 (79.5)

92.5 (60.4)

Physical activity (met equiv hrs/month)

N/A

165.4 (331.5)

57.1 (118.1)

40.2 (92.7)

Dietary intake

    

   % kilocalories from total fat

33.1 (7.5)

31.9 (8.8)

33.5 (10.0)

32.1 (9.5)

   Fruit & veg (servings/day)

3.5 (2.5)

4.0 (3.3)

4.1 (2.9)

4.78 (3.2)

   Dairy (servings/day)

1.8 (1.3)

1.5 (1.4)

1.3 (1.4)

1.2 (1.4)

 

Column percent

Socioeconomic status (% low)

33.9

35.5

26.7

44.5

Race/ethnicity

    

   African American

33.3

30.9

19.8

18.7

   Hispanic

33.9

39.6

30.0

27.0

   Whites and others

32.7

29.5

50.2

54.3

Television viewing (% >2.5 hrs/day)

48.9

51.6

36.4

52.9

Smoking (% current)

N/A

N/A

23.3

12.9

  1. 1 μg/g creatinine
  2. 2 level of detection