Table 5

Gestational age ssessment by head circumference (HC)

Centiles





Centiles





50th
2.5th
97.5th

50th
2.5th
97.5th
HC (mm)
 weeks
 days
 weeks
 days
 weeks
 days
 HC (mm)
 weeks
 days
 weeks
 days
 weeks
 days
70
 12
 2
 11
 2
 13
 3
 140
 18
 0
 17
 0
 19
 0
72
 12
 3
 11
 3
 13
 4
 142
 18
 1
 17
 1
 19
 1
74
 12
 4
 11
 4
 13
 5
 144
 18
 2
 17
 2
 19
 2
76
 12
 5
 11
 5
 13
 6
 146
 18
 3
 17
 3
 19
 3
78
 12
 6
 11
 6
 14
 0
 148
 18
 4
 17
 4
 19
 4
80
 13
 0
 12
 0
 14
 1
 150
 18
 5
 17
 5
 19
 5
82
 13
 1
 12
 1
 14
 2
 152
 19
 0
 17
 6
 20
 0
84
 13
 3
 12
 2
 14
 3
 154
 19
 1
 18
 1
 20
 1
86
 13
 4
 12
 3
 14
 4
 156
 19
 2
 18
 2
 20
 2
88
 13
 5
 12
 4
 14
 5
 158
 19
 3
 18
 3
 20
 3
90
 13
 6
 12
 5
 14
 6
 160
 19
 4
 18
 4
 20
 4
92
 14
 0
 12
 6
 15
 0
 162
 19
 5
 18
 5
 20
 5
94
 14
 1
 13
 1
 15
 1
 164
 19
 6
 18
 6
 20
 6
96
 14
 2
 13
 2
 15
 3
 166
 20
 0
 19
 0
 21
 0
98
 14
 3
 13
 3
 15
 4
 168
 20
 1
 19
 1
 21
 1
100
 14
 5
 13
 4
 15
 5
 170
 20
 2
 19
 2
 21
 2
102
 14
 6
 13
 5
 15
 6
 172
 20
 3
 19
 3
 21
 3
104
 15
 0
 13
 6
 16
 0
 174
 20
 4
 19
 4
 21
 4
106
 15
 1
 14
 1
 16
 1
 176
 20
 5
 19
 5
 21
 5
108
 15
 2
 14
 2
 16
 2
 178
 20
 6
 19
 6
 21
 6
110
 15
 3
 14
 3
 16
 4
 180
 21
 0
 20
 0
 22
 0
112
 15
 4
 14
 4
 16
 5
 182
 21
 1
 20
 1
 22
 1
114
 15
 6
 14
 5
 16
 6
 184
 21
 2
 20
 2
 22
 2
116
 16
 0
 15
 0
 17
 0
 186
 21
 3
 20
 3
 22
 3
118
 16
 1
 15
 1
 17
 1
 188
 21
 4
 20
 4
 22
 4
120
 16
 2
 15
 2
 17
 2
 190
 21
 5
 20
 5
 22
 4
122
 16
 3
 15
 3
 17
 3
 192
 21
 5
 20
 6
 22
 5
124
 16
 5
 15
 4
 17
 5
 194
 21
 6
 20
 6
 22
 6
126
 16
 6
 15
 5
 17
 6
 196
 22
 0
 21
 0
 23
 0
128
 17
 0
 16
 0
 18
 0
 198
 22
 1
 21
 1
 23
 1
130
 17
 1
 16
 1
 18
 1
 200
 22
 2
 21
 2
 23
 2
132
 17
 2
 16
 2
 18
 2
 202
 22
 3
 21
 3
 23
 2
134
 17
 3
 16
 3
 18
 3
 204
 22
 3
 21
 3
 23
 3
136
 17
 4
 16
 4
 18
 5
 206
 22
 4
 21
 4
 23
 4
138
 17
 6
 16
 6
 18
 6
 208
 22
 5
 21
 5
 23
 5







210
 22
 5
 21
 6
 23
 5

Salpou et al. BMC Pregnancy and Childbirth 2008 8:48   doi:10.1186/1471-2393-8-48