Table 1 Distribution of respondents by characteristics, birth history and summaries of the age at first childbirths
From: Survival analysis and prognostic factors of timing of first childbirth among women in Nigeria
Ever given Birth | Timing of first Birth (years) among “Had Birth” | Median (years) | Mean ± σ (years) | |||||
|---|---|---|---|---|---|---|---|---|
Characteristics | N | <15 | 15–19 | 20–29 | 30+ | |||
Region | ||||||||
North Central | 6251 | 4190(68.9) | a271(6.5) | 1866(44.5) | 1913(45.7) | 140(3.3) | 19 | 20.0 ± 4.0 |
North East | 6630 | 5096(76.1) | 623(12.2) | 3018(59.2) | 1387(27.2) | 68(1.3) | 17 | 18.2 ± 3.7 |
North West | 9673 | 7730(78.7) | 1012(13.1) | 4945(64) | 1717(22.2) | 56(0.7) | 17 | 17.7 ± 3.4 |
South East | 4462 | 2621(57.6) | 140(5.3) | 881(33.6) | 1425(54.4) | 175(6.7) | 21 | 21.5 ± 5.0 |
South South | 6058 | 3830(62.4) | 282(7.4) | 1796(46.9) | 1620(42.3) | 132(3.5) | 19 | 19.9 ± 4.4 |
South West | 5874 | 3984(69.3) | 130(3.3) | 1253(31.5) | 2394(60.1) | 207(5.2) | 21 | 21.6 ± 4.4 |
Residence | ||||||||
Urban | 15545 | 9778(63.4) | a545(5.6) | 3844(39.3) | 4944(50.6) | 445(4.6) | 20 | 20.7 ± 4.6 |
Rural | 23403 | 17673(76.4) | 1913(10.8) | 9915(56.1) | 5512(31.2) | 333(1.9) | 18 | 18.6 ± 4.0 |
Education | ||||||||
education | 13740 | 11952(86.4) | a1557(13) | 7292(61.0) | 2956(24.7) | 147(1.2) | 17 | 17.9 ± 3.7 |
Primary | 7104 | 5953(83.4) | 548(9.2) | 3156(53.0) | 2125(35.7) | 124(2.1) | 18 | 19.0 ± 4.0 |
Secondary | 14407 | 7475(52.5) | 308(4.1) | 2964(39.7) | 3958(53.0) | 245(3.3) | 20 | 20.7 ± 4.2 |
Higher | 3697 | 2071(55.3) | 45(2.2) | 347(16.8) | 1417(68.4) | 262(12.7) | 24 | 24.0 ± 4.9 |
Age at first Marriage | ||||||||
Never | 9326 | 617(6.6) | 50(8.1) | 313(51.0) | 239(38.9) | 12(2.0) | 19 | 19.2 ± 3.9 |
Before 15 | 7869 | 7396(94.0) | 2148(29.2) | 4565(62.1) | 604(8.2) | 35(0.5) | 15 | 15.8 ± 2.8 |
15–19 | 13187 | 11925(90.4) | 203(1.7) | 8450(71.3) | 3150(26.6) | 51(0.4) | 18 | 18.4 ± 2.4 |
20+ | 8566 | 7677(89.6) | 78(1.0) | 488(6.4) | 6376(83.6) | 689(9.0) | 23 | 24.0 ± 4.0 |
Religion | ||||||||
Catholics | 4081 | 2409(58.3) | a138(5.7) | 937(38.9) | 1207(50.1) | 127(5.3) | 20 | 20.9 ± 4.8 |
Other Christian | 15757 | 10107(64.4) | 646(6.4) | 4030(39.9) | 4972(49.2) | 459(4.5) | 20 | 20.6 ± 4.6 |
Islam | 18578 | 14504(77.9) | 1617(11.2) | 8592(59.2) | 4112(28.4) | 183(1.3) | 17 | 18.3 ± 3.8 |
Others | 532 | 431(79.1) | 57(13.2) | 200(46.4) | 165(38.3) | 9(2.1) | 18 | 18.9 ± 4.3 |
Ethnicity | ||||||||
Yoruba | 5606 | 3710(67.9) | a107(2.9) | 1108(29.9) | 2315(62.4) | 180(4.9) | 21 | 21.7 ± 4.3 |
Igbo/Ibiobio | 5448 | 3202(58.5) | 151(4.7) | 1044(32.6) | 1776(55.5) | 231(7.2) | 21 | 21.7 ± 5.0 |
Hausa/Fulani | 11811 | 9524(79.9) | 1223(12.8) | 6092(64.0) | 2120(22.3) | 89(0.9) | 17 | 17.7 ± 3.5 |
Others | 16083 | 11015(68.6) | 977(8.9) | 5515(50.1) | 4245(38.5) | 278(2.5) | 19 | 19.3 ± 4.2 |
Ever Smoked | ||||||||
No | 38796 | 27327(70.9) | a2440(8.9) | 13703(50.1) | 10412(38.1) | 772(2.8) | 19 | 19.4 ± 4.4 |
Yes | 152 | 124(78.9) | 18(14.5) | 56(45.2) | 44(35.5) | 6(4.8) | 18 | 19.1 ± 4.8 |
Ever Had pregnancy terminated | ||||||||
No | 29528 | 20235(68.9) | a2156(10.2) | 12049(54.3) | 9026(33.1) | 627(2.4) | 18 | 19.3 ± 4.3 |
Yes | 9420 | 7216(87.2) | 302(5.5) | 1710(38.4) | 1430(52) | 151(4.1) | 19 | 19.7 ± 4.7 |
Ever Used Contraceptives | ||||||||
No | 34834 | 23858(68.9) | a2063(9) | 10988(50.5) | 6701(37.8) | 483(2.6) | 18 | 18.9 ± 4.2 |
Yes | 4114 | 3593(77.2) | 395(8.4) | 2771(47.6) | 3755(39.8) | 295(4.2) | 20 | 20.7 ± 4.5 |
Region | ||||||||
South | 16394 | 10435(63.8) | a552(5.3) | 3930(37.7) | 5439(52.1) | 514(4.9) | 20 | 20.9 ± 4.6 |
North | 22554 | 17016(75.7) | 1906(11.2) | 9829(57.8) | 5017(29.5) | 264(1.6) | 18 | 18.4 ± 3.9 |
Total | 38948 | 27451(70.9) | 2458(9) | 13759(50.1) | 10456(38.1) | 778(2.8) | 19 | 19.4 ± 4.4 |