"Well first off, the study itself says that a birth without medical intervention is sometimes referred to as a quote-unquote 'normal birth'. So I don't think it's imperative to use the phrase yourself, especially in a forum where you know women have very strong feelings about their experiences."
No - it's not imperative. But it's a standard medical term. The Royal College of Midwives even have a website called 'Campaign for Normal Birth' with information for midwives on midwifery practices that increase the likelihood of mothers having births without complications.
That said - I'm happy to substitute a different term to describe birth without complications. What would you suggest? Are you unhappy with the term 'normal' used in relation to any other aspect of having a baby? Do you object to the term 'normal conception' to indicate a conception which takes place without medical intervention?
" You seem to be saying that the planned location of birth is a determining factor of outcomes, but this ignores the fact that planned location is decided in part based on risk factors that will also affect outcomes -- even within the low-risk cohort."
With respect - it's not just me who is saying that planned location of birth appears to determine outcomes. The Royal College of Midwives and the Royal College of Obstetricians and Gynaecologists are saying it too:
"Maternal intervention rates were much higher in births planned for OUs with lower ?normal births? and spontaneous vertex deliveries." (comment by the president of the RCOG in response to the findings of the Birthplace study)
"Women who planned birth in a midwifery unit (AMU or FMU) had significantly fewer interventions, including substantially fewer intrapartum caesarean sections, and more ?normal births? than women who planned birth in an obstetric unit." (statement by the RCM in response to the Birthplace study).
"I note the study does not include large baby size as a risk factor"
Only low risk women were included in the study. A woman who was identified as carrying a large baby would not be classified at 'low risk' as macrosomia is an identified risk factor for a range of complications in birth. That's not to say that some women in ALL arms of the trial wouldn't end up delivering very large babies.
"Finally, if you want women to be fully informed, why not mention some of the other study results? Like, "For women having a first baby, a planned home birth increases the risk for the baby", or the fact that around 40 percent of first-time mothers giving birth in midwifery units will have to be transferred to obstetric units anyway. "
Yes - transfer is an issue. And yes - homebirth seems to increase the risks to the baby for first time mothers. However, birth outside of hospital (ie in a free standing midwifery led unit, with no access to doctor care without transfer) is not associated with poorer outcomes for babies. To me that suggests it's not birth away from a medical setting which puts the babies of first time mothers at increased risk, but issues surrounding the way care for women birthing at home is managed.
"What I get out of this study is that there's still an awful lot of luck involved. Nearly half of first-time mothers giving birth at home end up going to hospital. So how important is that choice really? It's still 50/50 whether you wiill go to hospital or not."
But even though half the first time mums in the study were transferred as a group they STILL had a MUCH lower rate of emergency surgery than women who'd opted to go to hospital in the first place, and I think this is very important!
"So you might want to be a bit more careful in your advice there."
If the RCM and the NHS are happy to recommend home birth as a 'safe' option for first time mums (they are - birth at home is still considered very safe as over all poor outcomes were rare), then I don't see what's wrong with encouraging those women who are keen to avoid an emergency c/s to 'consider' it? Obviously 'considering' it means taking all important factors into account.