2.29 Niger

2.29.1 Total adolescent births

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Total adolescent births per woman

	Country	5-year birth cohort	Unweighted cases	Total adolescent births
		1940 1990	161 4323	1.067421536959770 1.361776190236540
1	Niger	1940	161	1.07
2	Niger	1945	499	1.22
3	Niger	1950	1,158	1.23
4	Niger	1955	1,825	1.31
5	Niger	1960	3,192	1.32
6	Niger	1965	4,323	1.36
7	Niger	1970	4,088	1.24
8	Niger	1975	4,002	1.26
9	Niger	1980	4,000	1.33
10	Niger	1985	2,474	1.32

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2.29.2 Total adolescent births by age at first birth

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Total adolescent births per woman by age at first birth

	Country	5-year birth cohort	Age at first birth	Unweighted cases	Total adolescent births
		1940 1990		13 1635	1.048323149959440 3.237564711686960
1	Niger	1940	14 years and younger	13	2.69
2	Niger	1940	15-17 years	54	1.99
3	Niger	1940	18-19 years	23	1.15
4	Niger	1945	14 years and younger	47	3.24
5	Niger	1945	15-17 years	186	1.95
6	Niger	1945	18-19 years	70	1.15
7	Niger	1950	14 years and younger	123	3.09
8	Niger	1950	15-17 years	390	2.00
9	Niger	1950	18-19 years	234	1.15
10	Niger	1955	14 years and younger	206	2.97

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2.29.3 Contribution to total adolescent fertility by cohort and age at first birth

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Contribution to total adolescent fertility by cohort and age at first birth

	Country	5-year birth cohort	Age at first birth	Unweighted cases	Proportion
		1940 1990		13 1635	0.126849580499649 0.649987123938331
1	Niger	1940	14 years and younger	13	0.21
2	Niger	1940	15-17 years	54	0.65
3	Niger	1940	18-19 years	23	0.14
4	Niger	1945	14 years and younger	47	0.28
5	Niger	1945	15-17 years	186	0.60
6	Niger	1945	18-19 years	70	0.13
7	Niger	1950	14 years and younger	123	0.27
8	Niger	1950	15-17 years	390	0.56
9	Niger	1950	18-19 years	234	0.18
10	Niger	1955	14 years and younger	206	0.26

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2.29.4 Contribution to total adolescent fertility by age at first birth (all cohorts)

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Contribution to total adolescent fertility by age at first birth (all cohorts)

	Country	Age at first birth	Unweighted cases	Proportion
			2539 9444	0.175617722933448 0.586555386732974
1	Niger	14 years and younger	2,539	0.24
2	Niger	15-17 years	9,444	0.59
3	Niger	18-19 years	5,553	0.18

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2.29.5 Completed fertility by motherhood entry age

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Children ever born by motherhood entry age, women aged 40 and older

	Country	5-year birth cohort	Age at first birth	Unweighted cases	Number of children
		1940 1970		69 1028	6.570207875164170 9.669701517549109
1	Niger	1940	All mothers	159	8.47
2	Niger	1940	In adolescence	90	9.67
3	Niger	1940	After adolescence	69	6.89
4	Niger	1945	All mothers	486	7.96
5	Niger	1945	In adolescence	303	8.57
6	Niger	1945	After adolescence	183	6.92
7	Niger	1950	All mothers	747	7.72
8	Niger	1950	In adolescence	505	8.28
9	Niger	1950	After adolescence	242	6.57
10	Niger	1955	All mothers	686	7.84

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2.29.6 Difference in completed fertility between adolescent and non-adolescent mothers

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Difference in completed fertility between adolescent and non-adolescent mothers

	Country	5-year birth cohort	Difference in number of births
		1940 1970	1.646698055194050 2.781061701420450
1	Niger	1940	2.78
2	Niger	1945	1.66
3	Niger	1950	1.71
4	Niger	1955	1.65
5	Niger	1960	1.72
6	Niger	1965	1.71
7	Niger	1970	2.14

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2.29.7 Contribution of adolescent fertility to total fertility by cohort

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Contribution of adolescent fertility to total fertility by cohort

	Country	5-year birth cohort	Unweighted cases	Proportion
		1940 1970	159 1028	0.127441803247212 0.169559172934366
1	Niger	1940	159	0.13
2	Niger	1945	486	0.16
3	Niger	1950	747	0.17
4	Niger	1955	686	0.17
5	Niger	1960	1,028	0.13
6	Niger	1965	1,003	0.14
7	Niger	1970	440	0.13

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2.29.8 Mean age at first birth

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Mean age at first birth, women with first birth before age 30

	Country	5-year birth cohort	Unweighted cases	Mean age
		1940 1980	159 2539	18.63246592346780 19.59106499569980
1	Niger	1940	159	19.59
2	Niger	1945	486	19.25
3	Niger	1950	1,106	18.96
4	Niger	1955	1,762	18.63
5	Niger	1960	2,467	18.84
6	Niger	1965	2,539	18.82
7	Niger	1970	2,236	19.25
8	Niger	1975	1,741	19.16
9	Niger	1980	808	18.80

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2.29.9 Adolescent parity progression ratios

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Adolescent parity progression ratios

	Country	5-year birth cohort	Progression ratio from	Unweighted cases	Ratio
		1940 1990		1 2956	0.060439527287293 1.000000000000000
1	Niger	1940	none to 1st birth	90	0.56
2	Niger	1940	1st to 2nd birth	56	0.63
3	Niger	1940	2nd to 3rd birth	20	0.38
4	Niger	1940	3rd to 4th birth	1	0.06
5	Niger	1940	4th to 5th birth	1	1.00
6	Niger	1945	none to 1st birth	303	0.61
7	Niger	1945	1st to 2nd birth	187	0.64
8	Niger	1945	2nd to 3rd birth	74	0.40
9	Niger	1945	3rd to 4th birth	19	0.27
10	Niger	1945	4th to 5th birth	5	0.27

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2.29.10 Adolescent parity progression ratios by age

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Adolescent parity progression ratios by mother's age at first birth

	Country	5-year birth cohort	Age at first birth	Progression ratio from	Unweighted cases	Ratio
		1940 1990			0 1635	0.000000000000000 1.000000000000000
1	Niger	1940	14 years and younger	none to 1st birth	13	0.08
2	Niger	1940	15-17 years	none to 1st birth	54	0.35
3	Niger	1940	18-19 years	none to 1st birth	23	0.13
4	Niger	1940	14 years and younger	1st to 2nd birth	12	0.90
5	Niger	1940	15-17 years	1st to 2nd birth	41	0.75
6	Niger	1940	18-19 years	1st to 2nd birth	3	0.15
7	Niger	1940	14 years and younger	2nd to 3rd birth	8	0.65
8	Niger	1940	15-17 years	2nd to 3rd birth	12	0.33
9	Niger	1940	18-19 years	2nd to 3rd birth	0	0.00
10	Niger	1940	14 years and younger	3rd to 4th birth	1	0.16

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2.29.11 Rapid Repeat Birth probability

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Likelihood that an adolescent mother has a rapid repeat birth

	Country	5-year birth cohort	Likelihood
			0.267174278418811 0.362174885297912
1	Niger	1940	0.35
2	Niger	1945	0.34
3	Niger	1950	0.33
4	Niger	1955	0.32
5	Niger	1960	0.34
6	Niger	1965	0.36
7	Niger	1970	0.33
8	Niger	1975	0.36
9	Niger	1980	0.36
10	Niger	1985	0.34

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2.29.12 Rapid Repeat Birth proportion

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Proportion of nonfirst adolescent births that are rapid repeat births

	Country	5-year birth cohort	Unweighted cases (non-first adolescent births)	Proportion
		1940 1990	78 2602	0.433614716098253 0.520531895166525
1	Niger	1940	78	0.52
2	Niger	1945	285	0.48
3	Niger	1950	681	0.47
4	Niger	1955	1,099	0.46
5	Niger	1960	1,891	0.49
6	Niger	1965	2,602	0.51
7	Niger	1970	2,110	0.49
8	Niger	1975	2,086	0.52
9	Niger	1980	2,235	0.52
10	Niger	1985	1,335	0.50

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