Home > Journals > Indian Journal of Obstetrics and Gynecology

Indian Journal of Obstetrics and Gynecology

Submit your article Read this Journals View all journals
Full Text (PDF)
Original Article

A Comparative Study of Foetal Weight Estimation at Term Pregnancy by Johnson's Method and Dare's Method

Ganitha G.* , Ganitha G.* , Arul Anne Rose S.* , Iyanar Kannan**

Author Information

Licence:



Indian Journal of Obstetrics and Gynecology 5(1):p 63-69, January - March 2017. | DOI: DOI: http://dx.doi.org/10.21088/ijog.2321.1636.5117.10

How Cite This Article:

Timeline

Received : N/A         Accepted : N/A          Published : N/A

Abstract

 Context:Estimation of birth weight is an important factor in antenatal and labour management. Estimation of birth weight determines the time, mode and place of delivery. Aims: This study aims at comparing the accuracy of Johnson’s method and Dare’s method for estimating foetal birth weight at term. Settings and Design: This was a prospective observational study done at a tertiary care teaching hospital over a period of one year. Methods and Material: 300 women with singleton uncomplicated term pregnancy satisfying inclusion and exclusion criteria were included in the study. Foetal weight estimation was done by Johnson’s method and Dare’s method within 72 hours before delivery and was compared with actual birth weight. Statistical analysis used: Statistical analysis for comparison was done using SPSS software (version 20). Mean absolute error, percentage error, overestimation and underestimation of both methods was compared. Results: The mean actual birth weight (ABW) was 2861.8±460 grams. The mean estimated birth weight (EBW) by Johnson’s method and Dare’s method was 2979.1±382 grams and 2925.01±420 grams respectively. About 23.6% were low birth weight (LBW) and 1% was macrosomic babies. Dare’s method had least maximum and minimum error than Johnson’s method. The mean absolute error by Dare’s method was lower than Johnson’s method. The birth weight of 73% and 73.7% cases could be predicted within 10 % error of ABW by Dare’s method and Johnson’s method respectively. Both methods overestimated birth weight in LBW babies. Conclusions: Dare’s method is more accurate than Johnson’s method in estimating foetal birth weight and predicting LBW and macrosomic babies.

Keywords: Dare’s Method; Estimated Foetal Weight; Johnson’s Method.

References

No records found.


About this article

Cite this article

Licence:



Received Accepted Published
N/A N/A N/A
DOI: DOI: http://dx.doi.org/10.21088/ijog.2321.1636.5117.10

Keywords


Article Level Metrics

Last Updated

Thursday 18 June 2026, 00:51:46 (IST)

1422

Accesses

2
152
00

Citations


NA
NA
NA

Download citation


Article Keywords

Keyword Highlighting

Highlight selected keywords in the article text.


Timeline

Received N/A
Accepted N/A
Published N/A

licence




Access this article

Reprint Order Form
Buy this Article
Institutional Subscriptions

Share