Table 2 Gestational ages for subgroups of women by LMP and by Ultrasound

N with LMP and U/S GA recorded

225

194

  n (%) GA ≤ 63 days by U/S

152/225 (67.6)

140/194 (72.2)

N with GA ≤ 63 days by LMP

159

143

  n (%) GA ≤ 63 days by U/S

131/159 (82.4)

123/143 (86.0)

N with GA ≤ 56 days by LMP

128

118

  n (%) GA ≤ 63 days by U/S

115/128 (89.8)

110/118 (93.2)