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5th Anniversary of the CPM2000 Study’s Publication in the British Medical Journal
(June 18, 2005 - June 18, 2010)



Outcomes of planned home births with certified professional midwives:
large prospective study in North America

June 18th, 2010 is the 5th anniversary of the publication of the CPM2000 study in the British Medical Journal (BMJ). We thought this a perfect opportunity to update you on the study and to once again thank the more than 400 Certified Professional Midwives and (CPMs) and more than 7,000 mothers who made the study possible. As well we wish to thank in particular Pam Maurath for endless wisdom and support and for helping arrange for core funding for the study through The Benjamin Spencer Fund and to thank the Foundation for the Advancement of Midwifery for additional funding to finish the study.

Continued High Level of Web Access
We were thrilled when we found out in March 2006 that the article had made the BMJ Top Ten Hit parade for 2005 – the third most popular in the BMJ in the year 2005 based on web access in first week after publication.

Now we are astounded by the fact that five years after publication the article continues to be accessed every month by more than 1,200 individuals and downloaded 150 to 300 times as a PDF. That’s the equivalent of someone accessing the article once every 30 minutes and someone downloading it once every 3 hours, 24/7. See the attached table of access by month over the last 5 years provided by the BMJ.

Article Available in Other Languages
The article has been translated into at least four other languages. PDFs of the article are now available for free on the BMJ website in French, Spanish, German and in a larger font for aging midwives. (http://www.bmj.com/cgi/content/full/330/7505/1416). With a little luck it should soon be available there in Hungarian and Hebrew!

Supplementary Articles: Q & A’s, and More on Neonatal Mortality and Prematurity
We have also produced two supplementary articles in journal format which we wrote in response to questions about the article. The first is in a Q&A format to answer the most commonly asked questions about the study. The second takes a closer look at perinatal mortality and comparisons of the CPM2000 stats to US national birth statistics and suggests that mortality is similar but prematurity is less than half as common among women cared for by CPMs than among the general U.S. public. Both reports are available for free at our website (http://understandingbirthbetter.com).

Recent Home Birth Studies Provide Further Evidence Of Home Birth Safety
The success of the study in terms of access demonstrates just how important research is to midwifery and to homebirth. Providing evidence for mothers and midwives alike about the safety, rates of interventions and transfers to hospital in planned home birth, it has also informed state legislators and the obstetrical community about the care direct-entry midwives in North America provide. While the lobby against CPMs in Washington recently was unfortunate, it is our perception that many players besides the Senators had their minds opened when we presented data to them this past year.

Recent large high-quality studies of home birth in Canada 1 2 and the Netherlands 3 dovetail with the CPM2000 study to extend weight of evidence supporting the safety of planned homebirth for low risk women where home birth midwives are an integral, accepted and funded part of the health care system. The Canadian research provides direct comparisons of home and hospital birth safety. While the BMJ article remains the largest prospective home birth study to date, the retrospective Dutch study is the largest study on home birth ever accomplished. It may be of interest to note that these studies reflect the practise of direct entry midwives. Nurse midwifery does not exist in Canada and the Netherlands.

We continue to be active in advising home birth researchers or reviewing home birth articles and our response to a recent Australian home birth article has just been published in Medical Journal of Australia. http://www.mja.com.au/public/issues/192_12_210610/letters_210610_fm-7.html.


Article Usage (Web Access By Month - after removing webcrawler access)

Outcomes of planned home births with certified professional midwives: large prospective study in North America,
British Medical Journal June 18, 2005 330: 1416

Month/Year

 

Abstracts

 

PDF

 
     

 Total Accesses

 Full Text HTML

 Unique IP Addresses Each Month

June 2005 

14,347

2,603

8,511

2,881

6,522

July 2005 

5,261

764

3,180

846

2,502

August 2005 

3,693

482

2,122

527

1,813

September 2005 

3,273

507

1,761

511

1,488

October 2005 

3,138

543

1,699

439

1,425

November 2005 

3,060

460

1,890

360

1,292

December 2005 

2,623

392

1,577

229

1,155

January 2006 

3,180

534

1,833

397

1,607

February 2006 

3,038

565

1,615

497

1,530

March 2006 

3,556

677

2,021

436

1,863

April 2006 

3,420

636

2,121

399

1,802

May 2006 

2,610

454

1,571

276

1,401

June 2006 

2,392

465

1,325

254

1,253

July 2006 

2,193

398

1,257

198

1,165

August 2006 

2,244

447

1,185

224

1,136

September 2006 

2,893

558

1,515

330

1,389

October 2006 

3,449

581

1,676

368

1,534

November 2006 

3,052

649

1,629

391

1,566

December 2006 

2,155

542

1,142

178

1,023

January 2007 

2,357

523

1,270

241

1,288

February 2007 

2,319

438

1,397

238

1,418

March 2007 

2,474

619

1,380

288

1,399

April 2007 

2,296

528

1,297

244

1,354

May 2007 

2,418

476

1,446

245

1,439

June 2007 

2,144

380

1,230

195

1,198

July 2007 

1,931

359

1,119

179

1,073

August 2007 

1,885

396

1,105

161

1,078

September 2007 

2,002

419

1,163

240

1,235

October 2007 

2,879

510

1,782

299

1,700

November 2007 

3,336

547

1,965

325

1,730

December 2007 

2,483

492

1,417

175

1,366

January 2008 

4,055

591

2,681

285

2,230

February 2008 

3,639

526

2,283

316

2,007

March 2008 

4,278

643

2,742

342

2,377

April 2008 

3,744

490

1,994

284

1,833

May 2008 

3,858

413

2,206

254

1,867

June 2008 

4,038

437

2,515

260

2,160

July 2008 

3,675

355

2,167

232

1,791

August 2008 

3,286

362

1,889

171

1,547

September 2008 

3,334

437

2,073

222

1,680

October 2008 

3,336

473

1,896

291

1,655

November 2008 

3,579

505

1,983

265

1,761

December 2008 

2,705

384

1,451

204

1,319

January 2009 

2,564

383

1,226

229

1,374

February 2009 

3,002

583

1,447

281

1,598

March 2009 

3,619

981

1,641

340

1,763

April 2009 

2,320

856

896

173

1,318

May 2009 

2,046

351

837

185

1,048

June 2009 

2,248

434

970

197

1,100

July 2009 

2,905

201

1,822

209

1,456

August 2009 

2,385

249

1,124

214

1,261

September 2009 

2,774

222

1,574

183

1,531

October 2009 

2,853

420

1,384

208

1,521

November 2009 

3,088

568

1,754

303

1,661

December 2009 

2,239

277

1,347

168

1,243

January 2010 

2,586

366

1,571

175

1,474

February 2010 

2,312

355

1,292

210

1,225

March 2010 

2,731

463

1,544

296

1,438

April 2010 

2,199

467

1,029

253

1,214

May 2010 

2,248

254

1,344

160

1,285

Totals 

185,747

30,990

104,883

19,481

 

Source: British Medical Journal



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