Table 2

Summary statistics of height SDS and change in height SDS for different time periods

Time period	n	Mean	SD	Min	Max
Height SDS at
t−1	153	−3.4	0.8	−6.4	−1.2
t0	337	−3.4	0.9	−6.4	+0.4
t1	337	−2.7	0.9	−5.1	+1.6
t2	242	−2.3	0.9	−4.9	+1.7
Height SDS change from
t−1 to t0	153	−0.05	0.21	−0.6	+0.6
t0 to t1	337	0.74	0.39	−0.3	+2.2
t1 to t2	242	0.37	0.27	−0.4	+1.3