TABLE 1

Participant Characteristics

CharacteristicsAdolescent AN (N = 66)Control (N = 42)
Age at study, mean ± SD (range), y21.3 ± 2.3 (15–26)20.7 ± 2.5 (15–26)
Education, mean ± SD (range), y14.5 ± 2.0 (10–19)14.3 ± 2.3 (10–18)
SES score, mean ± SD (range)a50.1 ± 10.4 (23–66)48.5 ± 11.2 (21–66)
BMI at study, mean ± SD (range), kg/m221.8 ± 3.4 (15–31)b24.3 ± 4.3 (19–37)
Lowest BMI, mean ± SD (range), kg/m215.3 ± 1.7 (12–20)cNA
AN subtype at diagnosis, n (%)
    Restricting54 (81.8)NA
    Binge/purge12 (18.2)NA
Age of AN onset, mean ± SD (range), y13.3 ± 1.5 (9–16)NA
No. of hospitalizations, mean ± SD (range)2.2 ± 2.4 (0–12)NA
Length of follow-up, mean ± SD (range), y6.4 ± 1.7 (4–10)NA
Weight recovery, n (%)
    Low weight14 (21.2)NA
    Weight recovered52 (78.8)NA
Menstrual function, n (%)
    Irregular/absent menses18 (27.3)4 (9.5)
    Regular menses19 (28.8)17 (40.5)
    Oral contraceptive pill29 (43.9)21 (50.0)
  • NA indicates not applicable.

  • a SES indicates SES according to A. B. Hollingshead, PhD (Four-Factor Index of Social Status, unpublished manual, 1975), with adolescent AN (n = 65) and control (n = 38) subjects.

  • b P = .001 (2-tailed).

  • c Data are for adolescent AN (n = 65).