Henshaw S K
Alan Guttmacher institute, New York.
Fam Plann Perspect. 1997 May-Jun;29(3):115-22.
In 1992, 112 pregnancies occurred per 1,000 U.S. women aged 15-19; of these, 61 ended in births, 36 in abortions and 15 in miscarriages. Black teenagers' rates of pregnancies, births and abortions were 2-3 times those of whites; Hispanic teenagers had rates of births and abortions between those of blacks and whites. While similar proportions of pregnant black and non-Hispanic white teenagers had abortions (40% and 38%, respectively), the proportion was lower among Hispanics (29%). Among all women 15-19, the birthrate rose 12 points between 1987 and 1991; one-third of the rise (four points) may be attributable to a fall in the abortion rate. Between 1991 and 1995, the birth rate of black teenagers fell from 116 to 96 per 1,000, a level well below that of Hispanics (106 per 1,000). Among the states, pregnancy rates per 1,000 teenagers in 1992 ranged from 159 (in California) to 59 (in North Dakota), birth rates per 1,000 varied from 84 (Mississippi) to 31 (New Hampshire) and abortion rates per 1,000 ranged from 67 (Hawaii) to nine (Utah). The pregnancy rates of white and black teenagers are negatively correlated.
1992年，美国每1000名15至19岁的女性中有112例怀孕；其中，61例以生育告终，36例以堕胎告终，15例以流产告终。黑人青少年的怀孕、生育和堕胎率是白人的2至3倍；西班牙裔青少年的生育和堕胎率介于黑人和白人之间。虽然怀孕的黑人青少年和非西班牙裔白人青少年进行堕胎的比例相近（分别为40%和38%），但西班牙裔青少年中的这一比例较低（29%）。在所有15至19岁的女性中，1987年至1991年间出生率上升了12个百分点；其中三分之一的上升（4个百分点）可能归因于堕胎率的下降。1991年至1995年间，黑人青少年的出生率从每1000人116例降至96例，这一水平远低于西班牙裔青少年（每1000人106例）。在各州中，1992年每1000名青少年的怀孕率从159例（加利福尼亚州）到59例（北达科他州）不等，每1000人的出生率从84例（密西西比州）到31例（新罕布什尔州）不等，每1000人的堕胎率从67例（夏威夷州）到9例（犹他州）不等。白人和黑人青少年的怀孕率呈负相关。
