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Trends and transition times in parity progression among women of reproductive age in Nigeria between 1998 and 2012

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Academic year: 2022

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(1)

Awoyelu Ifeoluwa E.

1

, Ayeni Olusola

1

, Gbadebo Babatunde M.

1

, &

Adebowale Stephen A.

1

Department of Epidemiology and Medical Statistics, Faculty of Public Health, College Of Medicine,

University of Ibadan, Nigeria

awoyeluifeoluwa@yahoo.com

(2)

𝐶𝐹𝑅 = ∫ 𝑚(𝑎)𝑑𝑎

𝛽

𝛼

… … … (1)

(3)

𝑓

𝑖

(𝑡) = ∫ 𝑚(𝑡)𝑒

𝛼𝑡 − ∫ 𝑚(𝑎)𝑑𝑎𝑧𝑡

𝑓

𝑖−1

(𝑧)𝑑𝑧, 𝛼 ≤ 𝑧 <

𝑡 < 𝛽 … … … (2)

𝑓

𝑖

(𝑡) = 𝑚(𝑡)𝑒

−𝐶𝐹𝑅(𝑡)

[𝐶𝐹𝑅(𝑡)]

𝑖−1

(𝑖 − 1)!

𝑓

𝑖

(𝑡)

α β

𝐹

𝑖

= ∫ 𝑓

𝛽 𝑖

(𝑡)

𝛼

= ∫ 𝑚(𝑡)𝑒

−𝐶𝐹𝑅(𝑡)

[𝐶𝐹𝑅(𝑡)]

𝑖−1

(𝑖 − 1)!

𝛽 𝛼

𝐹

𝑖

= 1 − 𝑒

−𝐶𝐹𝑅

∑ (𝐶𝐹𝑅)

𝑗

𝑗!

𝑖−1

𝑗=0

𝑃

𝑖

= 𝐹

𝑖+1

𝐹

𝑖

(4)
(5)
(6)

0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 0.22 0.24 0.26 0.28 0.3 0.32 0.34 0.36 0.38 0.4 0.42 0.44 0.46 0.48 0.5 0.52 0.54 0.56 0.58 0.6 0.62 0.64 0.66 0.68 0.7 0.72 0.74 0.76 0.78 0.8 0.82 0.84 0.86 0.88 0.9 0.92 0.94 0.96 0.98 1

0-8 9 -- 11 12 -- 17

18 -- 23

24 -- 29

30 -- 35

36 -- 41

42 -- 47

48 -- 53

54 -- 59

60 -- 65

66 -- 71

72 -- 77

78 -- 83

84 -- 89

90 -- 95

96+

2003 2008 2013

(7)
(8)

0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 0.22 0.24 0.26 0.28 0.3 0.32 0.34 0.36 0.38 0.4 0.42 0.44 0.46 0.48 0.5 0.52 0.54 0.56 0.58 0.6 0.62 0.64 0.66 0.68 0.7 0.72 0.74 0.76 0.78 0.8 0.82 0.84 0.86 0.88 0.9 0.92 0.94 0.96 0.98 1

0-8 9-11 12-17 18-23 24-29 30-35 36-41 42-47 48-53 54-59 60-65 66-71 72-77 78-83 84-89 90-95 96+

2003 2008 2013

(9)
(10)

0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 0.22 0.24 0.26 0.28 0.3 0.32 0.34 0.36 0.38 0.4 0.42 0.44 0.46 0.48 0.5 0.52 0.54 0.56 0.58 0.6 0.62 0.64 0.66 0.68 0.7 0.72 0.74 0.76 0.78 0.8 0.82 0.84 0.86 0.88 0.9 0.92 0.94 0.96 0.98

0-8 9-11 12-17 18-23 24-29 30-35 36-41 42-47 48-53 54-59 60-65 66-71 72-77 78-83 84-89 90-95 96+

2003 2008 2013

(11)
(12)

0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 0.22 0.24 0.26 0.28 0.3 0.32 0.34 0.36 0.38 0.4 0.42 0.44 0.46 0.48 0.5 0.52 0.54 0.56 0.58 0.6 0.62 0.64 0.66 0.68 0.7 0.72 0.74 0.76 0.78 0.8 0.82 0.84 0.86 0.88 0.9 0.92 0.94 0.96 0.98 1

0-8 9-11 12-17 18-23 24-29 30-35 36-41 42-47 48-53 54-59 60-65 66-71 72-77 78-83 84-89 90-95 96+

2003 2008 2013

(13)
(14)

0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 0.22 0.24 0.26 0.28 0.3 0.32 0.34 0.36 0.38 0.4 0.42 0.44 0.46 0.48 0.5 0.52 0.54 0.56 0.58 0.6 0.62 0.64 0.66 0.68 0.7 0.72 0.74 0.76 0.78 0.8 0.82 0.84 0.86 0.88 0.9 0.92 0.94 0.96 0.98 1

0-8 9-11 12-17 18-23 24-29 30-35 36-41 42-47 48-53 54-59 60-65 66-71 72-77 78-83 84-89 90-95 96+

2003 2008 2013

(15)
(16)

0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 0.22 0.24 0.26 0.28 0.3 0.32 0.34 0.36 0.38 0.4 0.42 0.44 0.46 0.48 0.5 0.52 0.54 0.56 0.58 0.6 0.62 0.64 0.66 0.68 0.7 0.72 0.74 0.76 0.78 0.8 0.82 0.84 0.86 0.88 0.9 0.92 0.94 0.96 0.98 1

0-8 9-11 12-17 18-23 24-29 30-35 36-41 42-47 48-53 54-59 60-65 66-71 72-77 78-83 84-89 90-95 96+

2003 2008 2013

(17)
(18)

0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 0.22 0.24 0.26 0.28 0.3 0.32 0.34 0.36 0.38 0.4 0.42 0.44 0.46 0.48 0.5 0.52 0.54 0.56 0.58 0.6 0.62 0.64 0.66 0.68 0.7 0.72 0.74 0.76 0.78 0.8 0.82 0.84 0.86 0.88 0.9 0.92 0.94 0.96 0.98 1

0-8 9-11 12-17 18-23 24-29 30-35 36-41 42-47 48-53 54-59 60-65 66-71 72-77 78-83 84-89 90-95 96+

2003 2008 2013

(19)
(20)

(21)

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[r]

1 Department of Epidemiology and Medical Statistics, College of Medicine, University of Ibadan, Oyo State, Nigeria. 2 Department of Demography and Social Statistics, Obafemi