Table 1 Demographic characteristics and clinical features of study population.

From: Bone age evaluation in an ethnically diverse cohort of children with premature adrenarche

Characteristics

Mean (SD) or N (%)

N

296

Demographics

 

 Age at diagnosis, years

7.32 ± 1.59

 Biological sex (n, %)

Female 213 (72%)

Male 83 (28%)

Race and Ethnicity (n, %)

 

 White

138 (46.5%)

 Black or African-American

55 (18.6%)

 Hispanic or Latino

41 (13.9%)

 Asian*

4 (1.4%)

 Other

58 (19.6%)

Anthropometric measurements at diagnosis

 

 Mean weight Z score

1.37 ± 1.07

 Mean Height Z score

0.87 ± 1.06

 Mean BMI (kg/m2 ± SD)

19.63 ± 3.79

 Mean BMI Z score

1.25 ± 0.96

 Mean BMI percentile

81.31 ± 21.99

BA-CA (difference in months ± SD)

14.49 ± 14.65

BA reading (months, years)

102.38 (8.53 yrs) ± 25.57 (2.13 yrs)

  1. *Due to the small group of Asian patients in this cohort, Asian and “other” (i.e., individuals who elected not to specify their race and ethnicity and patients with multiple racial and ethnical origins) were grouped together for the purpose of additional analyses.