Table 1A.

Comparison of the Baseline Characteristics in Placebo Versus Metformin Groups (N = 15).

Variables	Total Median [Q1–Q3]	Placebo (n=5) Median [Q1–Q3]	Metformin (n=10) Median [Q1–Q3]	Z	p *
Maternal age, years	33 [26–36]	35 [32–40]	33 [26–34]	0.91	.36
Body Mass Index, kg/m2	39.6 [33.4–41.8]	39.7 [38.5–44.2]	37.5 [29.3–41.2]	1.10	.27
Postpartum day started study drug	36 [16–52]	44 [36–52]	20 [16–41]	1.04	.30
Test weigh to drug start interval, days	3 [3–5]	4 [3–6]	3 [3–4]	0.75	.45
Breast emptying, total/24 hr (each side counted separately)	17 [15–21]	15 [15–19]	18 [15–23]	−0.31	.76
Milk output, mL/24 hr	159 [85–253]	266 [192–281]	148 [65–170]	2.02	.04

Note. Q1–Q3=interquartile range.

^*Wilcoxon Rank Sum Test two-sided p-value.