3.16 Summary Northern Africa and Western Asia | New Adolescent Fertility Measures for the Long-term Perspective

3.16.1 Total adolescent births

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Total adolescent births per woman
	Region	5-year birth cohort	Unweighted average	Weighted average
		1940 1995	0.172259424691709 0.847533716371906	0.230287806119086 0.998264618653118
1	Northern Africa and Western Asia	1940	0.85	1.00
2	Northern Africa and Western Asia	1945	0.81	0.89
3	Northern Africa and Western Asia	1950	0.64	0.72
4	Northern Africa and Western Asia	1955	0.58	0.63
5	Northern Africa and Western Asia	1960	0.49	0.53
6	Northern Africa and Western Asia	1965	0.43	0.46
7	Northern Africa and Western Asia	1970	0.43	0.42
8	Northern Africa and Western Asia	1975	0.39	0.37
9	Northern Africa and Western Asia	1980	0.33	0.33
10	Northern Africa and Western Asia	1985	0.29	0.31

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3.16.2 Total adolescent births by age at first birth

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Total adolescent births per woman by age of first birth
	Region	5-year birth cohort	Age at first birth	Unweighted average	Weighted average
		1940 1995		1.093652715616560 3.295217908052420	1.091532457426340 3.293939131101250
1	Northern Africa and Western Asia	1940	14 years and younger	2.95	3.23
2	Northern Africa and Western Asia	1940	15-17 years	2.05	2.10
3	Northern Africa and Western Asia	1940	18-19 years	1.16	1.17
4	Northern Africa and Western Asia	1945	14 years and younger	3.12	3.29
5	Northern Africa and Western Asia	1945	15-17 years	2.05	2.07
6	Northern Africa and Western Asia	1945	18-19 years	1.16	1.16
7	Northern Africa and Western Asia	1950	14 years and younger	3.30	3.23
8	Northern Africa and Western Asia	1950	15-17 years	2.04	2.06
9	Northern Africa and Western Asia	1950	18-19 years	1.16	1.15
10	Northern Africa and Western Asia	1955	14 years and younger	2.98	3.11

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

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Contribution to total adolescent fertility by age at first birth
	Region	5-year birth cohort	Age at first birth	Unweighted average	Weighted average
		1940 1995		0.039945075631618 0.591395788765239	0.042902371576941 0.542197428449072
1	Northern Africa and Western Asia	1940	14 years and younger	0.18	0.21
2	Northern Africa and Western Asia	1940	15-17 years	0.49	0.53
3	Northern Africa and Western Asia	1940	18-19 years	0.33	0.26
4	Northern Africa and Western Asia	1945	14 years and younger	0.20	0.23
5	Northern Africa and Western Asia	1945	15-17 years	0.47	0.50
6	Northern Africa and Western Asia	1945	18-19 years	0.32	0.28
7	Northern Africa and Western Asia	1950	14 years and younger	0.15	0.17
8	Northern Africa and Western Asia	1950	15-17 years	0.45	0.50
9	Northern Africa and Western Asia	1950	18-19 years	0.40	0.33
10	Northern Africa and Western Asia	1955	14 years and younger	0.13	0.15

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3.16.4 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)
	Region	Age at first birth	Unweighted average	Weighted average
			0.098396695882954 0.461288543823000	0.128045997249884 0.471961682604791
1	Northern Africa and Western Asia	14 years and younger	0.10	0.13
2	Northern Africa and Western Asia	15-17 years	0.44	0.47
3	Northern Africa and Western Asia	18-19 years	0.46	0.40

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3.16.5 Completed fertility by motherhood entry age

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Completed fertility by motherhood entry age
	Region	5-year birth cohort	Age at first birth	Unweighted average	Weighted average
		1940 1975		3.648530335042740 6.886258143243170	3.671694138717880 6.704930132203850
1	Northern Africa and Western Asia	1940	All mothers	5.98	5.84
2	Northern Africa and Western Asia	1940	In adolescence	6.89	6.70
3	Northern Africa and Western Asia	1940	After adolescence	5.33	5.06
4	Northern Africa and Western Asia	1945	All mothers	5.73	5.67
5	Northern Africa and Western Asia	1945	In adolescence	6.61	6.63
6	Northern Africa and Western Asia	1945	After adolescence	5.02	4.85
7	Northern Africa and Western Asia	1950	All mothers	4.84	5.12
8	Northern Africa and Western Asia	1950	In adolescence	5.81	6.18
9	Northern Africa and Western Asia	1950	After adolescence	4.17	4.33
10	Northern Africa and Western Asia	1955	All mothers	5.15	4.80

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

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Difference in completed fertility between adolescent and non-adolescent mothers
	Region	5-year birth cohort	Unweighted average	Weighted average
		1940 1975	1.271475487772460 1.658889932557280	1.495592852666050 1.851950877378700
1	Northern Africa and Western Asia	1940	1.55	1.64
2	Northern Africa and Western Asia	1945	1.59	1.78
3	Northern Africa and Western Asia	1950	1.63	1.85
4	Northern Africa and Western Asia	1955	1.65	1.80
5	Northern Africa and Western Asia	1960	1.66	1.79
6	Northern Africa and Western Asia	1965	1.46	1.60
7	Northern Africa and Western Asia	1970	1.57	1.59
8	Northern Africa and Western Asia	1975	1.27	1.50

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3.16.7 Contribution of adolescent fertility to total fertility by cohort

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Contribution of adolescent fertility to total fertility by cohort
	Region	5-year birth cohort	Unweighted proportion	Weighted proportion
		1940 1975	0.086937264262445 0.126979006894209	0.061468775921368 0.146886062819677
1	Northern Africa and Western Asia	1940	0.12	0.15
2	Northern Africa and Western Asia	1945	0.13	0.14
3	Northern Africa and Western Asia	1950	0.13	0.14
4	Northern Africa and Western Asia	1955	0.11	0.13
5	Northern Africa and Western Asia	1960	0.11	0.13
6	Northern Africa and Western Asia	1965	0.11	0.12
7	Northern Africa and Western Asia	1970	0.11	0.11
8	Northern Africa and Western Asia	1975	0.09	0.06

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3.16.8 Mean age at first birth

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Mean age at first birth, women with first birth before age 30
	Region	5-year birth cohort	Unweighted average	Weighted average
		1940 1985	20.83432253805860 23.56620077313990	20.19066691983420 23.91574720566650
1	Northern Africa and Western Asia	1940	20.9	20.2
2	Northern Africa and Western Asia	1945	20.8	20.5
3	Northern Africa and Western Asia	1950	22.1	21.5
4	Northern Africa and Western Asia	1955	22.2	21.8
5	Northern Africa and Western Asia	1960	22.7	22.3
6	Northern Africa and Western Asia	1965	22.8	22.7
7	Northern Africa and Western Asia	1970	22.7	22.7
8	Northern Africa and Western Asia	1975	22.9	23.0
9	Northern Africa and Western Asia	1980	23.1	23.0
10	Northern Africa and Western Asia	1985	23.6	23.9

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3.16.9 Adolescent parity progression ratios

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Adolescent parity progression ratios
	Region	5-year birth cohort	Progression ratio from	Unweighted average	Weighted average
		1940 1995		0.073887381026162 0.496308003378246	0.084798886274282 0.544665505122075
1	Northern Africa and Western Asia	1940	4th to 5th birth	0.30	0.33
2	Northern Africa and Western Asia	1940	3rd to 4th birth	0.27	0.30
3	Northern Africa and Western Asia	1940	2nd to 3rd birth	0.35	0.41
4	Northern Africa and Western Asia	1940	1st to 2nd birth	0.50	0.54
5	Northern Africa and Western Asia	1940	none to 1st birth	0.45	0.52
6	Northern Africa and Western Asia	1945	4th to 5th birth	0.24	0.31
7	Northern Africa and Western Asia	1945	3rd to 4th birth	0.30	0.34
8	Northern Africa and Western Asia	1945	2nd to 3rd birth	0.35	0.39
9	Northern Africa and Western Asia	1945	1st to 2nd birth	0.50	0.53
10	Northern Africa and Western Asia	1945	none to 1st birth	0.43	0.47

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3.16.10 Adolescent parity progression ratios by age (all cohorts)

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Adolescent parity progression ratios by mother's age at first birth
	Region	Age at first birth	Progression ratio from	Unweighted average	Weighted average
				0.007633587786259 0.778684913947770	0.001311498937134 0.878740186813909
1	Northern Africa and Western Asia	14 years and younger	none to 1st birth	0.02	0.03
2	Northern Africa and Western Asia	15-17 years	none to 1st birth	0.11	0.13
3	Northern Africa and Western Asia	18-19 years	none to 1st birth	0.15	0.15
4	Northern Africa and Western Asia	14 years and younger	1st to 2nd birth	0.78	0.88
5	Northern Africa and Western Asia	15-17 years	1st to 2nd birth	0.71	0.70
6	Northern Africa and Western Asia	18-19 years	1st to 2nd birth	0.13	0.12
7	Northern Africa and Western Asia	14 years and younger	2nd to 3rd birth	0.57	0.64
8	Northern Africa and Western Asia	15-17 years	2nd to 3rd birth	0.23	0.25
9	Northern Africa and Western Asia	18-19 years	2nd to 3rd birth	0.02	0.03
10	Northern Africa and Western Asia	14 years and younger	3rd to 4th birth	0.32	0.38

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Adolescent parity progression ratios by mother's age at first birth by cohort
	Region	Age at first birth	5-yr birth cohort	Progression ratio from	Unweighted average	Weighted average
			1940 1995		0.000000000000000 0.948385186487460	0.000000000000000 0.942872101787836
1	Northern Africa and Western Asia	14 years and younger	1940	none to 1st birth	0.06	0.07
2	Northern Africa and Western Asia	15-17 years	1940	none to 1st birth	0.21	0.25
3	Northern Africa and Western Asia	18-19 years	1940	none to 1st birth	0.19	0.20
4	Northern Africa and Western Asia	14 years and younger	1940	1st to 2nd birth	0.81	0.90
5	Northern Africa and Western Asia	15-17 years	1940	1st to 2nd birth	0.74	0.76
6	Northern Africa and Western Asia	18-19 years	1940	1st to 2nd birth	0.15	0.16
7	Northern Africa and Western Asia	14 years and younger	1940	2nd to 3rd birth	0.67	0.76
8	Northern Africa and Western Asia	15-17 years	1940	2nd to 3rd birth	0.32	0.36
9	Northern Africa and Western Asia	18-19 years	1940	2nd to 3rd birth	0.05	0.06
10	Northern Africa and Western Asia	14 years and younger	1940	3rd to 4th birth	0.45	0.48

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3.16.11 Rapid Repeat Birth probability

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Likelihood that an adolescent mother has a rapid repeat birth before turning 20
	Region	5-year birth cohort	Unweighted average	Weighted average
		1940 1995	0.338599506922432 0.496832428651129	0.282461011752057 0.488346314633033
1	Northern Africa and Western Asia	1940	0.48	0.49
2	Northern Africa and Western Asia	1945	0.47	0.47
3	Northern Africa and Western Asia	1950	0.49	0.47
4	Northern Africa and Western Asia	1955	0.48	0.45
5	Northern Africa and Western Asia	1960	0.50	0.47
6	Northern Africa and Western Asia	1965	0.47	0.44
7	Northern Africa and Western Asia	1970	0.44	0.38
8	Northern Africa and Western Asia	1975	0.41	0.35
9	Northern Africa and Western Asia	1980	0.37	0.32
10	Northern Africa and Western Asia	1985	0.34	0.30

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3.16.12 Rapid Repeat Birth proportion

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Proportion of all nonfirst adolescent births that are rapid repeat births before
	Region	5-year birth cohort	Unweighted average	Weighted average
		1940 1995	0.625196513043277 0.774098755047526	0.601845764004397 0.729566055333112
1	Northern Africa and Western Asia	1940	0.73	0.71
2	Northern Africa and Western Asia	1945	0.68	0.69
3	Northern Africa and Western Asia	1950	0.71	0.69
4	Northern Africa and Western Asia	1955	0.75	0.70
5	Northern Africa and Western Asia	1960	0.77	0.73
6	Northern Africa and Western Asia	1965	0.75	0.70
7	Northern Africa and Western Asia	1970	0.75	0.67
8	Northern Africa and Western Asia	1975	0.69	0.63
9	Northern Africa and Western Asia	1980	0.72	0.65
10	Northern Africa and Western Asia	1985	0.69	0.62

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