. 2009 Aug 4;297(4):E879–E888. doi: 10.1152/ajpendo.00364.2009

Table 3.

Urine pH in nonlactating and lactating women during fasting and refeeding

	Nonlactating	Lactating

Fasting time, h
0–12	6.7±0.2^a	6.5±0.2^a
12–24	6.5±0.1^a	5.9±0.3^a
24–36	6.4±0.3^a	5.3±0.2^b
36–42	6.1±0.3^a	4.7±0.1^c
Refeeding	6.3±0.2^a	4.7±0.1^c

Values are means ± SE. Repeated-measures ANOVA revealed differences over time (P < 0.001), differences between groups [nonlactating (n = 4) vs. lactating (n = 5); P < 0.001], and differences due to interaction of group and time (P < 0.001). Different superscripted letters (based on post hoc comparisons) indicate significant difference (P < 0.05).