International Newborn Size Standards: table of z-score for birthweight-for-gestational age for infants

Usage

bw_gestage_term_sd

Format

A tibble with 980 rows and 5 columns:

week: Gestational age weeks component
day: Gestational age days component
sex: Sex; 1 = male; 2 = female
sd: Standard deviation (z-score): -3, -2, -1, 0, 1, 2, 3
bw: Birthweight in kilograms

Source

Villar J, Giuliani F, Fenton TR, Ohuma EO, Ismail LC, Kennedy SH et al. INTERGROWTH-21st very preterm size at birth reference charts. Lancet 2016, 387(10021):844-45.

Examples

bw_gestage_term_sd
#> # A tibble: 882 × 5
#>    week  day     sex sd    bw   
#>    <chr> <chr> <dbl> <chr> <chr>
#>  1 33    1         1 -3SD  0.67 
#>  2 33    1         1 -2SD  1.17 
#>  3 33    1         1 -1SD  1.59 
#>  4 33    1         1 0     1.99 
#>  5 33    1         1 1SD   2.43 
#>  6 33    1         1 2SD   2.92 
#>  7 33    1         1 3SD   3.51 
#>  8 33    2         1 -3SD  0.71 
#>  9 33    2         1 -2SD  1.21 
#> 10 33    2         1 -1SD  1.63 
#> # … with 872 more rows