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Table 3 Univariate median regression analysis of kidney activity fraction

From: Renal 99mTc-DMSA pharmacokinetics in pediatric patients

Variable Coefficient 95% CI P value
Age (per year) − 0.002 (− 0.006, 0.002) 0.254
Age category
0 to < 3 years Reference . .
3 to < 7 years − 0.004 (− 0.035, 0.027) 0.795
7 to < 13 years − 0.014 (− 0.054, 0.026) 0.487
≥ 13 years − 0.027 (− 0.09, 0.036) 0.393
Weight (per 5 kg) − 0.004 (− 0.008, 0.001) 0.087
Sex
Male Reference . .
Female 0.067 (0.038, 0.096) < 0.001*
  1. Quantile regression on the median (median regression) was used to determine the univariate associations between each variable and kidney activity fraction.
  2. *Statistically significant