International fetal growth standards: table of z-scores of head circumference based on gestation age in exact weeks

International fetal growth standards: table of z-scores of head circumference based on gestation age in exact weeks

Usage

hc_gestage_sd

Format

A tibble with 189 rows and 3 columns:

gestage

Gestational age in exact weeks

sd

z-scores (-3SD, -2SD, -1SD, 0, 1SD, 2SD, 3SD)

hc

Head circumference in millimetres

Source

Papageorghiou AT, Ohuma EO, Altman DG, Todros T, Cheikh Ismail L, Lambert A et al. International standards for fetal growth based on serial ultrasound measurements: the Fetal Growth Longitudinal Study of the INTERGROWTH-21st Project. Lancet 2014, 384(9946):869-79.

Examples

hc_gestage_sd
#> # A tibble: 882 × 5
#>    week  day     sex sd    hc   
#>    <chr> <chr> <dbl> <chr> <chr>
#>  1 24    0         1 -3    17.7 
#>  2 24    0         1 -2    19.2 
#>  3 24    0         1 -1    20.8 
#>  4 24    0         1 0     22.3 
#>  5 24    0         1 1     23.9 
#>  6 24    0         1 2     25.5 
#>  7 24    0         1 3     27.0 
#>  8 24    1         1 -3    17.8 
#>  9 24    1         1 -2    19.3 
#> 10 24    1         1 -1    20.9 
#> # … with 872 more rows