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姙娠 및 出生間隔에 關聯된 要因의 分析

Study on Some Factors Associated with Pregnancy and Birth Intervals

공중보건잡지 1972년 9권 2호 p.329 ~ 339
이향연,
소속 상세정보
이향연 (  ) - 서울대학교 보건대학원

Abstract


For the purpose of finding the factors about patterns of pregnancy and birth intervals of women, this study was conducted towards 559 eligible women, who have experienced live-birth, residing in Hoiki and Yimoon Dongs, Dongdaimoon Gu, Seoul from july to August 1972.
The summary of findings and results obtained through the analysis were as follows:
1. General Characteristics of Women:
By age, those belonging to the 25-34 group rated 71.8 percent of the total and the average age was 31.1 years.
A large proportion or 57.4 percent had received a high school education or more.
The average at marriage was 22.9 years and the average duration of marital lives turned out to be 7.7 years.
By the respondent´s appraisal, the women with middle living standards were 75 percent.
2. Summary of Pregnancy and Birth History:
The total number of pregnancies experienced was 1,860 and the average number of pregnancies was calculated at about 3 and number of live births, induced abortions, spontaneous abortions and still births on the whole averaged 2.5, 0.59, 0.19 and 0.02 respectively.
The wastage of pregnancies turned out to be 25.2 percent and the substantially large proportion of the wastage was induced abortion.
3. Findings Relating to Pregnancy and Birth Intervals:
The average duration from marriage to the beginning of first pregnancy was 10.7 months, and the interval from marriage to the birth of first child was 19.7 months. The difference between the average length of first pregnancy interval and of first birth interval was 9 months or 270 days and it could be proven that the rate of pregnancy wastage was very small.
The differences between the average lengths of pregnancy intervals and of birth intervals by delivery order showed a increasing trend from 3.1 months between 2nd-3rd to 13.4 months between 5th-6th.
The differences between pregnancy and birth intervals seemed to be based on pregnancy wastage largely.
Average interval between pregnancies was 21.2 months and mean duration between births was 26.4 months in total. The difference was computed at 5.2 months.
4. Findings Relating to Intervals between Pregnancies:
The average interval between pregnancies in total was 21.2 months.
As for the pregnancy interval by pregnancy order, it showed an upward trend up to the 4th pregnancy but a decreasing tendency after the 4th pregnancy.
The pregnancy interval decreased gradually with advancing age at marriage, but increased gradually with advancing current ages or ages at pregnancy.
The pregnancy interval declined gradually with the progress in educational levels.
Examining by the outcome of pregnancy, the mean duration of pregnancy was 18.2 months among women whose pregnancy terminated as live birth and 10.9 months among women whose pregnancy terminated as fetal deaths such as induced abortion, spontaneous abortion and still birth.
The pregnancy wastage, especially fetal deaths, by pregnancy order rose gradually with the increase of pregnancy order from 8.9 percent in first pregnancy through 25.4 percent in 3rd pregnancy to 60.6 percent in 5th pregnancy.
The pregnancy wastage in total was computed at 21.8 percent, and it could be divided into 14.7 percent as induced abortion, 5.3 percent as spontaneous abortion and 1.8 percent as still birth.
5. Findings Relating to Birth Intervals:
The average interval between births was 26.4 months in all.
According to the incrase of birth order, the birth interval showed an increasing tendency.
The birth interval decreased with the increase of age at marriage, but rose gradually with the advancing current ages or ages at pregnancy.
The birth interval by educational levels of women showed a decreasing trend with the progress in education levels.

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