Research Article

Fetal Urine Production in Late Pregnancy

Table 2

Relationship between measurements of AFI and HFUPR in individuals with repeat measurements at various time intervals. Data are presented as correlation coefficient ( 𝑅 ) and 𝑃 values, 𝑛 = number of measurements.

Median interval (days)Range (days) 𝑛 AFI at time 1 versus AFI at time 2 HFUPR at time 1 versus HFUPR at time 2 HFUPR at time 1 versus AFI at time 2
𝑅 𝑃 𝑅 𝑃 𝑅 𝑃

31–4160.84<0.00010.21NS−0.34NS
75–7240.55<0.005−0.27NS0.03NS
108–13200.53<0.02−0.07NS0.25NS
1714–21160.51<0.05−0.17NS−0.29NS