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. Author manuscript; available in PMC: 2012 Dec 6.
Published in final edited form as: Ultrasound Obstet Gynecol. 2007 May;29(5):574–582. doi: 10.1002/uog.3994

Table 1.

Changes in individual shape scores associated with inclusion of an increasing number of principal component scores in shape score (n = 20)

Change Mean (%) Median (%) SD Change >25%
SS-1 to SS-2 23.2 9.8 102.7 15/20
SS-2 to SS-3 −114.5 −4.5 −328.9 9/20
SS-3 to SS-4 35.3 5.0 101.8 5/20
SS-4 to SS-5 6.3 1.9 40.0 5/20
SS-5 to SS-6 7.3 0.2 16.9 3/20
SS-6 to SS-7 −4.9 −0.9 12.0 3/20