And if you want to try them out, we’ve put together a free guide that can help you. We have a set of custom productivity templates that work well with the iPad app, GoodNotes. But even after eliminating those from consideration, there are still a ridiculous number of calculators available for the iPhone. A lot of these are special-purpose apps-tip calculators, weight-loss calculators, mortgage calculators-that we’re going to ignore here. Unfortunately, a search for “calculator” on the App Store turns up over 2,000 hits. A good calculator app on your phone can save you a lot of time. And, when the calculator is an app on the phone that’s always with you, the efficiency is even greater. Calculators are tremendously efficient when the work requires only a handful of operations rather than hundreds. For lots of calculations, setting up a spreadsheet is just too fiddly and time-consuming. But that doesn’t mean calculators are dead. Spreadsheets and systems like Matlab and Mathematica have taken the place of both the calculator and the pad of paper when the analysis gets deep and complicated. Nowadays, I wouldn’t dream of using a calculator that way. In those days, hours of repetitive analysis would be done with a calculator sitting next to a pad of paper-one for running the numbers, the other for keeping track of the logic. When I went off to college, electronic calculators had only recently supplanted slide rules as standard equipment for engineers and scientists, and professors were lamenting their new students’ pathetic underappreciation of significant digits. To access all the INTERGROWTH-21 st resources, click HERE.Calculators and I go way back.
*If you wish to verify the file integrity of the INTERGROWTH-21 st tools prior to installation, download the MD5/SHA checksum value here. Weight, length, and head circumference for preterm infants until they reached 64 weeks’ postmenstrual age. Language options available: English, Portuguese and Spanish Weight, length, and head circumference for newborns between 24 +0 to 42 +6 weeks’ gestation.
The results can be exported for further analysis. In addition, large datasets can be imported directly into the application, which then calculates the respective centiles and z-scores based on the INTERGROWTH-21 st Standards and References. This application allows data to be entered manually so that the size of individuals can be compared to, and plotted graphically against, the international standards and references. Head circumference, bi-parietal diameter, abdominal circumference, femur length and occipito-frontal diameter for fetuses between 14 +0 and 40 +0 weeks' gestation.
The results can be exported for further analysis.ĭownload Windows app(note: large file size) In addition, large datasets can be imported directly into the application, which then calculates the respective centiles and z-scores based on the INTERGROWTH-21 st Standards. This application allows data to be entered manually so that the size of individuals can be compared to, and plotted graphically against, the international standards. This calculator produces centiles and z-scores for gestational weight gain based on the
The “ International Gestational Weight Gain” Calculator is an Excel-based application. It produces centiles and z-scores for these measurements based on the INTERGROWTH-21 st Symphysis-Fundal Height Standards. The " International Symphysis-Fundal Height" Calculator is an Excel-based application. It produces centiles and z-scores for these measurements based on the INTERGROWTH-21 st Estimated Fetal Weight Standards. The “ Estimated Fetal Weight" Calculator is an Excel-based application. This is a beta version calculator to estimate fetal size between 8 +2 and 15 +0 weeks’ gestation based on gestational age and crown-rump length measurement The “ International Fetal Size in Early Pregnancy” Calculator is an Excel-based application. This is a beta version calculator for gestational age based on fetal measurements (crown-rump length or head circumference and femur length).Ĭentiles and z-scores of large datasets can also be calculated. The “ International Gestational Age Assessment” Calculator is an Excel-based application.
The INTERGROWTH-21 st Consortium has developed a series of easy-to-use tools to compare clinical measurements against newly created standards.