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. 2016 Jul 20;39(11):1573–1579. doi: 10.1007/s00270-016-1418-y

Table 2.

Statistical comparison of the position of praevia placenta observed during operation

Group Total Partial Myometrium penetrated Posterior bladder wall involved Posterior bladder wall penetrated
A 230 30 112 59 29
B 38 6 17 10 5

X 2 = 0.303, P = 0.960