Gender

Study visit number vs Head circumference
N Mean StdDev Median Min Max Unknown Total
Visit 1 1,123 56.9 ± 2.3 57.0 49.0 73.0 - 1,123
Visit 2 756 56.8 ± 2.2 57.0 34.0 63.0 2 758
Visit 3 566 56.8 ± 2.1 57.0 51.0 63.0 - 566
Visit 4 121 56.9 ± 2.2 57.0 51.0 62.0 - 121
Visit 5 2 55.0 ± 1.4 55.0 54.0 56.0 - 2
Incident Outcomes Tracking - - - - - - - -
Sex of the participant vs Head circumference
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 1,123 56.9 ± 2.3 57.0 49.0 73.0 - 1,123
Male 608 58.1 ± 1.8 58.0 52.8 65.5 - 608
Female 515 55.4 ± 1.9 55.3 49.0 73.0 - 515
Sex of the participant vs Head circumference
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 756 56.8 ± 2.2 57.0 34.0 63.0 2 758
Male 405 58.0 ± 1.7 58.0 51.7 63.0 1 406
Female 351 55.4 ± 2.0 55.5 34.0 61.0 1 352
Sex of the participant vs Head circumference
Visit 3
N Mean StdDev Median Min Max Unknown Total
Total 566 56.8 ± 2.1 57.0 51.0 63.0 - 566
Male 304 58.0 ± 1.6 58.0 52.0 63.0 - 304
Female 262 55.4 ± 1.6 55.5 51.0 59.5 - 262
Sex of the participant vs Head circumference
Visit 4
N Mean StdDev Median Min Max Unknown Total
Total 121 56.9 ± 2.2 57.0 51.0 62.0 - 121
Male 67 58.2 ± 1.6 58.0 55.0 62.0 - 67
Female 54 55.3 ± 1.7 55.0 51.0 59.0 - 54
Sex of the participant vs Head circumference
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 2 55.0 ± 1.4 55.0 54.0 56.0 - 2
Male - - - - - - - -
Female 2 55.0 ± 1.4 55.0 54.0 56.0 - 2
Race of the participant vs Head circumference
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 1,123 56.9 ± 2.3 57.0 49.0 73.0 - 1,123
Asian 12 56.5 ± 2.4 56.2 53.0 60.0 - 12
Black 23 57.6 ± 1.5 57.7 55.0 61.0 - 23
Hispanic 13 56.4 ± 2.0 57.0 53.0 59.5 - 13
Native American 10 57.4 ± 2.5 57.5 53.5 61.5 - 10
White 1,065 56.8 ± 2.3 57.0 49.0 73.0 - 1,065
Race of the participant vs Head circumference
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 756 56.8 ± 2.2 57.0 34.0 63.0 2 758
Asian 4 58.3 ± 2.2 58.0 56.0 61.0 - 4
Black 8 57.5 ± 1.3 57.8 55.0 59.0 - 8
Hispanic 6 55.6 ± 1.8 55.5 53.0 58.5 - 6
Native American 6 57.8 ± 2.0 57.0 56.0 61.0 - 6
White 732 56.8 ± 2.2 57.0 34.0 63.0 2 734
Race of the participant vs Head circumference
Visit 3
N Mean StdDev Median Min Max Unknown Total
Total 566 56.8 ± 2.1 57.0 51.0 63.0 - 566
Asian 4 58.0 ± 2.1 57.8 56.0 60.5 - 4
Black 4 58.5 ± 1.8 58.8 56.5 60.0 - 4
Hispanic 5 56.1 ± 2.3 55.5 53.0 59.0 - 5
Native American 4 58.4 ± 2.1 58.0 56.5 61.0 - 4
White 549 56.8 ± 2.1 57.0 51.0 63.0 - 549
Race of the participant vs Head circumference
Visit 4
N Mean StdDev Median Min Max Unknown Total
Total 121 56.9 ± 2.2 57.0 51.0 62.0 - 121
Asian 3 57.0 ± 1.5 57.0 55.5 58.5 - 3
Black 1 59.5 - 59.5 59.5 59.5 - 1
Hispanic 2 56.8 ± 1.1 56.8 56.0 57.5 - 2
Native American 2 58.3 ± 3.2 58.3 56.0 60.5 - 2
White 113 56.8 ± 2.2 57.0 51.0 62.0 - 113
Race of the participant vs Head circumference
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 2 55.0 ± 1.4 55.0 54.0 56.0 - 2
Asian - - - - - - - -
Black - - - - - - - -
Hispanic - - - - - - - -
Native American - - - - - - - -
White 2 55.0 ± 1.4 55.0 54.0 56.0 - 2