File:UK abortion by gestational age 2004 histogram.svg
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DescriptionUK abortion by gestational age 2004 histogram.svg |
Histogram of abortions by gestational age for England and Wales in 2004. Horizontal axis is weeks and vertical axis is thousands of abortions. Data (reproduced below) is taken from Government Statistical Service for the Department of Health. (2005-07-27). Statistical Bulletin - Abortion Statistics, England and Wales: 2004. Table 5 - Legal abortions: gestation weeks by purchaser, 2004, England and Wales, residents (page 13 of the PDF) Meant to replace File:UKAbortionbyGestationalAgeChart2004.png. A pie chart is a poor way to show this kind of information, and a histogram is better suited to bins of variable width, as presented in the data set. Colors and trimester boundaries are the same as w:Image:Abortionmethods.png for consistency. I did draw the data from 4 weeks out until 40 weeks, but the rectangles are so short they can't be seen. |
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Date | |||
Source | Plotted by hand because it would have taken just as long to learn a new plotting program. | ||
Author | Omegatron | ||
Permission (Reusing this file) |
I, the copyright holder of this work, hereby publish it under the following licenses: This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported, 2.5 Generic, 2.0 Generic and 1.0 Generic license.
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Data
Gestation weeks |
Abortions | /weeks in bin |
---|---|---|
4-5 | 4688 | 2344 |
6-7 | 47230 | 23615 |
8-9 | 59934 | 29967 |
10-12 | 50677 | 16892 |
13-14 | 9962 | 4981 |
15-16 | 5492 | 2746 |
17-19 | 4518 | 1506 |
20-21 | 1592 | 796 |
22-23 | 1198 | 599 |
24 | 41 | 41 |
25 | 21 | 21 |
26-27 | 20 | 10 |
28-31 | 24 | 6 |
32+ | 18 | 2 |
Total | 185415 |
The average gestation for an abortion is thus:
[(4.5)(4688)+(6.5)(47230)+(8.5)(59934)+(11)(50677)+(13.5)(9962)+(15.5)(5492)+(18)(4518)+(20.5)(1592)+(22.5)(1198)+(24)(41)+(25)(21)+(26.5)(20)+(29.5)(24)+(32)(18)]/185415=
[21096+306995+509439+557447+134487+85126+81324+32636+20366+984+525+530+708+576]/185415=
1752239/185415=
9.45 weeks.
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1 August 2007
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 00:08, 4 August 2007 | 450 × 380 (16 KB) | commons>Omegatron | add labels for axes |
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Width | 450 |
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Height | 380 |