Table 2.

Birth outcome in different enrolments^*

	Enrolment 1	Enrolment 2	Enrolment 3
Gestational age at delivery (days)	269; 25; 267; 271	267; 26; 265; 268	265; 24; 259; 271
Placental weight (g)	a601; 142; 591; 612	a618; 146; 607; 628	620; 150; 585654
Placental weight centile	a39.1; 27.2; 37.1; 41.1	a42.9; 29.0; 40.9; 44.9	45.5; 27.7; 38.6; 52.3
Birthweight (g)	2 929; 592; 2 890; 2 969	2 966; 608; 2 926; 3 006	2 820; 668; 2 685; 2 955
Birthweight z-score	a−0.45; 1.0; −0.52; −0.39	a−0.27; 1.0; −0.34; −0.21	−0.38; 0.86; −0.61; −0.16

SD = standard deviation; LCL = lower confidence limit; UCL = upper confidence limit.

^*Results are given as mean; SD; LCL; UCL, where LCL and UCL are the 95% lower and upper confidence limits, respectively.

^{a, b, c}The same letter in different columns indicates significant differences between the means.