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Table 1 Means and standard deviations of serum IGF-1, IGFBP-3 and their ratio at each CVMI stage

From: Serum IGF-1, IGFBP-3 and their ratio: Potential biochemical growth maturity indicators

CVMI Stage n Mean Age (years) IGF-1 (ng/ml) IGFBP-3 (ng/ml) Mean IGF-1/IGFBP-3 ratio
Mean SD Mean SD
1 (Initiation) 15 8.5 180.9 15.9 3056 1087.6 0.066
2 (Acceleration) 15 9.3 208.4 10.2 3572.1 1209.4 0.064
3 (Transition) 15 11.5 403.3 12.3 4952.9 1169.8 0.084
4 (Deceleration) 15 14.4 332.4 12.8 5186.8 1384.2 0.068
5 (Maturation) 15 16.1 294.5 10.9 3984.1 1176.2 0.079
6 (Completion) 15 19.2 208.4 10 3599.5 1113.8 0.062