Table 2

Longitudinal anthropometric characteristics in juvenile systemic lupus erythematosus, n=331

Baseline6 months14 months26 months
GendernMedian (1st, 3rd q)nMedian (1st, 3rd q)nMedian (1st, 3rd q)nMedian (1st, 3rd q)p
Age at visit, yearsF27614.0 (12.1, 15.7)27614.4 (12.6, 16.3)27615.2 (13.3, 17.2)27616.3 (14.4, 18.1)
M5513.7 (11.6, 15.7)5514.3 (12.1, 16.2)5514.9 (13.0, 17.0)5515.8 (13.7, 17.9)
Height z scoreF276−0.29 (−1.22, 0.61)276−0.39 (−1.31, 0.53)276−0.46 (−1.30, 0.45)276−0.47 (−1.28, 0.41)<0.0001*
M55−0.50 (−1.50, 0.20)55−0.63 (−1.82, −0.01)55−0.80 (−1.77, −0.15)55−1.07 (−1.83, −0.19)<0.0001*
Parent-adjusted height z scoreF225−0.17 (−0.99, 0.60)225−0.25 (−1.01, 0.49)225−0.28 (−1.08, 0.48)225−0.25 (−1.12, 0.46)<0.0001*
M49−0.45 (−1.32, 0.27)49−0.55 (−1.44, 0.11)49−0.64 (−1.23, −0.16)49−0.72 (−1.39, −0.27)0.0001*
BMI z scoreF2760.12 (−0.59, 0.99)2760.56 (−0.19, 1.50)2760.46 (−0.28, 1.33)2760.35 (−0.33, 1.19)0.0001*
M550.17 (−0.79, 1.41)550.69 (−0.41, 1.50)550.45 (−0.66, 1.33)550.43 (−0.61, 1.35)0.0001*
n (%)n (%)n (%)n (%)
Growth failureF22538 (16.9)22535 (15.6)22535 (15.6)22533 (14.7)0.09
M4911 (22.4)4912 (24.5)4910 (20.4)4912 (24.5)
Height deflection§F276108 (39.1)27679 (28.6)27657 (20.7)0.0001
M5533 (60.0)5526 (47.3)5525 (45.5)
  • * Non-parametric repeated-measurements analysis of variance (Friedman's test) according to time or for frequencies (females versus males at 26 months).

  • χ2test.

  • Defined as parent-adjusted height z score <−1.5.

  • § Defined as Δheight z score <−0.25/year from baseline to the following assessments.

  • BMI, body mass index.