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Birth interval

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Birth interval  (BIRTH interval)


Studies of birth timing1 deal with the length of birth intervals2. These include intervals between marriage and first birth3, intervals between successive births4 and intervals between marriage and nth birth5. Birth spacing6 is used by some as synonymous with birth timing, but others restrict its use to discussions involving the idea of conscious effort to space births, i.e., to plan and control their timing. Inter-pregnancy intervals7 are the periods between the end of one pregnancy and the beginning of the next and are useful in computing the period of exposure to the risk of conception. The puerperium (603-6) is sometimes excluded from the period of exposure.
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