tailieunhanh - Fertility of Men and Women Aged 15–44 Years in the United States: National Survey of Family Growth, 2006–2010

Most noteworthy is that our Impact Factor continued to rise and in the last analysis for the year 2009 the number is , which is a further increase of over the IF of 2008. The IJGC ranks 93/165 in the Oncology category (median IF ) and 20/70 in Obstetrics and Gynecology (median IF ). This achievement is a reflection of improvement in both scientific merit and editorial attractiveness to submitters. The print circulation is now 1674 to members and 34 institutions. Ovid usage activity during the first three quarters of 2010 has reached 43,498 articles in 22,985 sessions. The . | National Health Statistics Reports Number 51 April 12 2012 Fertility of Men and Women Aged 15-44 Years in the United States National Survey of Family Growth 2006-2010 by Gladys Martinez . Kimberly Daniels . and Anjani Chandra . Division of Vital Statistics Abstract Objective This report presents national estimates of the fertility of men and women aged 15-44 years in the United States in 2006-2010 based on the National Survey of Family Growth NSFG . Data are compared with similar measures for 2002. Methods Descriptive tables of numbers percentages and means are presented and discussed. Data were collected through in-person interviews of a nationally representative sample of the household population aged 15-44 years in the United States between July 2006 and June 2010. The 2006-2010 NSFG sample is comprised of 22 682 respondents including 10 403 men and 12 279 women. The overall response rate for the 2006-2010 NSFG was 77 75 for men and 78 for women. Results Many of the fertility measures among men and women aged 15-44 based on the 2006-2010 NSFG were generally similar to those reported based on the 2002 NSFG. The mean age at first child s birth for women was 23 and the mean age at first child s birth for men was 25. One-half of first births to women were in their 20s and two-thirds of first births were fathered by men who were in their 20s. On average women aged 15-44 have children as of the time of the interview. By age 40 85 of women had had a birth and 76 of men had fathered a child. In 2006-2010 22 of first births to women occurred within cohabiting unions up from 12 in 2002. These measures differed by Hispanic origin and race and other demographic characteristics. Keywords parity number of children born age at first birth marital status at birth nonmarital births Introduction This report presents national estimates of different fertility measures for both men and women in the United States for the period 2006-2010. Fertility refers to the .

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