OBJECTIVES: Our objective was to identify statistically significant variables that determine the length of human gestation. STUDY DESIGN: Multiple linear regression was used to analyze 9355 observations from the Delivery Interview Program, a cross-sectional study conducted from 1977 through 1980 at the Boston Hospital for Women (now called the Brigham and Women's Hospital). RESULTS: Maternal parity, age, and race were found to be the most important variables determining the length of human gestation. Multiparous women, women aged < 19 or > 34 years, and black women were found to have shorter gestations than primiparous women, women aged 19 to 34 years, or white women. CONCLUSION: By means of our linear model the length of pregnancy for women with different risk factors can be estimated more precisely than Naegele's rule allows.
OBJECTIVES: Our objective was to identify statistically significant variables that determine the length of human gestation. STUDY DESIGN: Multiple linear regression was used to analyze 9355 observations from the Delivery Interview Program, a cross-sectional study conducted from 1977 through 1980 at the Boston Hospital for Women (now called the Brigham and Women's Hospital). RESULTS: Maternal parity, age, and race were found to be the most important variables determining the length of human gestation. Multiparous women, women aged < 19 or > 34 years, and black women were found to have shorter gestations than primiparous women, women aged 19 to 34 years, or white women. CONCLUSION: By means of our linear model the length of pregnancy for women with different risk factors can be estimated more precisely than Naegele's rule allows.
Authors: Xinye Qiu; Kelvin C Fong; Liuhua Shi; Stefania Papatheodorou; Qian Di; Allan Just; Anna Kosheleva; Carmen Messerlian; Joel D Schwartz Journal: Environ Epidemiol Date: 2020-09-14
Authors: Hanan El Marroun; Runyu Zou; Michelle F Leeuwenburg; Eric A P Steegers; Irwin K M Reiss; Ryan L Muetzel; Steven A Kushner; Henning Tiemeier Journal: JAMA Pediatr Date: 2020-12-01 Impact factor: 16.193
Authors: Helen Elden; Henrik Hagberg; Anna Wessberg; Verena Sengpiel; Andreas Herbst; Maria Bullarbo; Christina Bergh; Kristian Bolin; Snezana Malbasic; Sissel Saltvedt; Olof Stephansson; Anna-Karin Wikström; Lars Ladfors; Ulla-Britt Wennerholm Journal: BMC Pregnancy Childbirth Date: 2016-03-07 Impact factor: 3.007