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Table 1 Study population characteristics

From: Childhood and adolescent phenol and phthalate exposure and the age of menarche in Latina girls

Characteristic

Distribution

Age [years; median (range)]

 At B1 EDC Measurement

7.9 (6.7–9.6)

 At B4 EDC Measurement

11.2 (9.4–13.1)

Attained Menarche during Study Category [count (%)]

 Yes

182 (91.0)

 No

18 (9.0)

Age at Menarche [years; median (range)]

12.0 (9.4–13.8)

BMI Z-score [median (range)]

 At B1 EDC Measurement

0.5 (−2.2–2.4)

 At B4 EDC Measurement

0.5 (−2.7–2.2)

BMI Category [count (%)]

 At B1 EDC Measurement

  Under-weight or Normal weight (<85th Percentile)

147 (73.5)

  Overweight or Obese (≥85th percentile)

53 (26.5)

 At B1 EDC Measurement

 

  Under-weight or Normal weight (<85th Percentile)

137 (68.5)

  Overweight or Obese (≥85th percentile)

63 (31.5)

Height Z-score [median (range)]

 At B1 EDC Measurement

−0.1 (−2.6–2.1)

 At B4 EDC Measurement

0.1 (−2.1–2.3)

Maternal Education [count (%)]

 Post-Secondary Education

46 (23.0)

 No Post-Secondary Education

154 (77.0)