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. 2016 Oct 14;8(10):2414–2424. doi: 10.18632/aging.101063

Table 1. Measures of IGF-I, IGFBPs, and IGF-I/IGFBP-3 molar ratios in females and males.

Measurement Females (n=163) Males (n=40) p-value
Age (yrs) 97.2 (95.1-99.9) 97.5 (95.5-98.8) >0.99
IGF-I, ng/mL
(n=203)
99±42 87±32 0.10
IGFBP-1, ng/mL
(n=195)
16 (0-27) 18 (0-26) 0.93
IGFBP-3, mg/mL
(n=201)
3.3±1.0 2.6±0.8 <0.01
IGF-I/IGFBP-3 molar ratio
(n=201)
0.11±0.03 0.13±0.04 <0.01