General birth rate - Ippanshūsseiritsu

Japanese: 一般出生率 - いっぱんしゅっせいりつ
General birth rate - Ippanshūsseiritsu

...However, in reality, the denominator P does not only consist of people who can become pregnant, regardless of sex or age. In other words, this rate varies depending on the proportion of women of childbearing age in the population (including unmarried and married), and it is not always possible to determine the specific age range of ``childbearing age.'' For these reasons, caution is required when making comparisons between two countries. There are also specific birth rates, such as birth rates by mother's age, birth order, urban and rural areas, race, and high and low rate areas, as well as crude fertility rates (called female fertility rates or total fertility rates) and (un)married fertility rates. However, since it is difficult to obtain population by marital status every year, strictly speaking, these statistics are controversial. The birth rate, along with the death rate, can be said to be a statistic that determines the increase or decrease of the population.

*Some explanations of terms that refer to the "general birth rate" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…しかし,現実には,分母のPは性別,年齢別に関係なく妊娠可能な人々によってだけ構成されているわけではないので,いいかえれば,人口中の妊娠可能な年齢の婦人の割合(未婚,既婚を含む)によって,この率は変動するばかりでなく,〈妊娠可能な年齢〉を具体的に何歳から何歳までとするのかについても必ずしも確定できないなどの理由から,2国間の比較などを行うときには注意を要する。このほか特殊出生率specific birth rateといって,母の年齢別,出産順位別,都市農村別,人種別および高・低率地域別出生率,あるいは一般出生率crude fertility rate(婦人出生率または総出生率という),(無)配偶出生率などがあるが,毎年配偶関係別人口をうることがむずかしいので,厳密には異論の多い統計となっている。出生率は死亡率とともに人口の増減を左右する統計値といえよう。…

※「一般出生率」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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