| Autor: |
Hadfield RM, Lain SJ, Simpson JM, Ford JB, Raynes-Greenow CH, Morris JM, Roberts CL, Hadfield, Ruth M, Lain, Samantha J, Simpson, Judy M, Ford, Jane B, Raynes-Greenow, Camille H, Morris, Jonathan M, Roberts, Christine L |
| Zdroj: |
Medical Journal of Australia; 3/16/2009, Vol. 190 Issue 6, p312-315, 4p |
| Abstrakt: |
Objective: To determine whether the proportion of babies born large for gestational age (LGA) in New South Wales has increased, and to identify possible reasons for any increase.Design and Setting: Population-based study using data obtained from the NSW Midwives Data Collection, a legislated surveillance system of all births in NSW.Participants: All 1 273 924 live-born singletons delivered at term (> or = 37 complete weeks' gestation) in NSW from 1990 to 2005.Main Outcome Measures: LGA, defined as > 90th centile for sex and gestational age using 1991-1994 Australian centile charts; maternal factors associated with LGA were assessed using logistic regression.Results: The proportion of babies born LGA increased from 9.2% to 10.8% (18% increase) for male infants and from 9.1% to 11.0% (21% increase) for female infants. The mean birthweight increased by 23 g for boys and 25 g for girls over the study period. Increasing maternal age, higher rates of gestational diabetes and a decline in smoking contributed significantly to these increases, but did not fully explain them.Conclusions: There is an increasing trend in the proportion of babies born LGA, which is only partly attributable to decreasing maternal smoking, increasing maternal age and increasing gestational diabetes. [ABSTRACT FROM AUTHOR] |
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