Table 1 Lactation improves insulin sensitivity and β cell function in postpartum women.

The Matsuda index, insulinogenic index, and disposition index during and after lactation (at 2 months postpartum in lactating/non-lactating women and at a mean of 3.6 years after delivery in lactated/non-lactated women). A total of 174 women (lactated, n = 85; non-lactated, n = 99) were included in the analysis. Data are expressed as the means and SEM. *P < 0.05, **P < 0.01, and ***P < 0.001.

Initial follow-upLast follow-up
Non-
lactating
SEMLactatingSEMPNon-
lactated
SEMLactatedSEMP
Matsuda index
(insulin
sensitivity)
5.3240.1776.0850.2570.015*4.2490.2185.5690.2870.000***
Insulinogenic
index
0.4440.0310.4740.0280.5000.5050.0660.5350.0620.230
Disposition
index
2.2290.1632.6420.1700.0872.2120.2613.1080.4980.020*