Table 2.

Description of the subgroups after division of ex-preterm individuals by GA or BW

	Division by GA		Division by BW
	≤28 weeks	>28 weeks	≤1000 g	>1000 g
Number	36 (19 girls)	38 (19 girls)	36 (20 girls)	38 (18 girls)
Age (years)	14.92	14.89	14.76	15.04
Weight (kg)	51.46	54.8	49.42	56.7
Height (cm)	163.76	164.10	161.49	166.26
GA (weeks)	26.2	30.8	26.8	30.2
BW (g)	896	1234	844	1283
Mother's age at birth (years)	29.47	31.79	30.47	30.84
Mother's higher education	4	4	4	4

Note: Please see footnote for Table 1 for description of variables and statistical tests. The corresponding subgroups were not statistically significantly different in any of the variables when the division was made according to GA (except, as expected, BW). On the other hand, when the division is made according to BW (in addition to the expected difference in GA), the subgroups differed with respect to weight and height (bold).