Preterm Birth Committee Report

Baroness Bennett of Manor Castle Excerpts

Friday 6th June 2025 Lords Chamber

[Baroness Bennett of Manor Castle (GP)]

My Lords, I join in the general and fervent thanks to the noble Lord, Lord Patel, and his committee for this terribly important report. I also thank the noble Lord for his introduction to this debate.

The noble Lord, Lord Patel, mentioned an issue that I would like to start with: the situation of our current final year midwifery students. The Royal College of Midwives did a survey and found that 84% of them said that they are not confident that they are going to find a job after graduating this year. This makes no sense at all. We are in the middle of calculating the formula for exactly how many midwives we need, but, if we look at the figures from the Royal College of Midwives, we see that a survey of members recently found that midwives and maternity support workers were working an estimated 118,000 unpaid hours of overtime each week to meet the needs of their patients. We should be grabbing those graduating midwives with both hands and making sure that they have a secure future because, of course, they now face the enormous weight of student debt, with many of them being previous graduates who are doing this as a second degree. There is a risk that they will go and do something else because they need to put food on the table and keep a roof over their head. Of course, this is a situation that many resident doctors and anaesthesiologists already face; as the Minister will know, I have put down Written Questions on that issue.

I turn to the specific issue of preterm births. Here, I will focus not on the care but on the public health issues. We have heard in this debate a great deal from many expert figures about the fact that, in many cases, we do not know the cause of a preterm delivery. However, one thing we do know is that poverty, inequality and discrimination increase the level of suffering around preterm births. The most recent figures show that the neonatal mortality rates associated with preterm birth in the most deprived areas have just increased for the third year in a row. We are going backwards.

The data on preterm birth and neonatal mortality is not nearly good enough, but it is clear that minority communities are suffering a double, intersectional disadvantage. Let me make a statement of the obvious: reducing deprivation and poverty would reduce preterm birth. I do not believe that anyone would disagree with that. Drawing on the Bliss briefing, I ask the Minister this: in terms of the Government’s response to the committee’s first recommendation, what are the future metrics, targets and ambitions? Are the Government making progress in that area?

Most of my speech will address an issue that no noble Lord has yet addressed—nor, I suspect, will address. I am going to focus on One Health and the environmental health aspects that undoubtedly contribute to preterm birth, even if we do not understand the precise details.

Our environment is in a terrible state, and those who are pregnant are particularly vulnerable to that disastrous environment. Our planet has been choked in plastics and soaked in pesticides. We have seen drugs ending up out in the environment, creating antimicrobial resistance and other deleterious medical effects.

I start with a deeply shocking study, which came out after the committee reported. It is only one study, but it is seriously indicative. It was presented to the Society for Maternal-Fetal Medicine’s annual meeting early this year—the pregnancy meeting. Investigators at the University of New Mexico analysed 175 placenta, 100 deliveries at term and 75 pre term. The level of microplastics and nanoplastics in the placenta was significantly higher with the preterm births and much higher than previous levels of microplastics and nanoplastics that have been measured in human blood. Clearly, the placenta is concentrating microplastics and nanoplastics in the maternal blood. However, what is deeply concerning is that the preterm births have higher rates than the full-term births, which is counterintuitive. If this was a gradual accumulation over a time that was not associated with the preterm birth, you would expect the longer-term ones to have more plastic.

I come now to PFASs, generally known as “forever chemicals”. Two studies were published in 2023 showing an association between the level of PFAS in maternal blood and the rate of preterm birth. The study in environmental health, Siwakoti et al, showed that it was particularly affecting male babies, and that the accumulation in male babies was higher than that in female babies. Noble Lords here who are experts will tell us that male babies are more fragile at birth. PFAS is concentrating more in those babies, with potential effects which we do not yet understand but which are deeply concerning. Another study, from the Emory University, found that mothers with higher levels of PFAS in pregnancy are 1.5 times more likely to have a baby born three weeks before their due date or earlier—the preterm babies we are talking about. The early term, one to two weeks before, is also raised.

We also know that we have pesticides all around our environment. Noble Lords might have seen a recent environmental study which showed extraordinarily high levels of glyphosate—the chemical to which we are all very heavily exposed to—in tampons. Glyphosate in maternal blood levels is associated with higher levels of preterm birth. More broadly, on pesticide exposure, a lot of this is uncertain, and all of it is very complicated, but another a meta-analysis suggests some of the ways in which pesticides might be having impacts on preterm birth. They might be triggering inflammation and oxidative stress and disrupting endocrine functions.

Finally, there is the microbiome. The noble Lord, Lord Winston, mentioned our starting to understand that the vaginal microbiome is significant in terms of preterm birth and many other aspects of health. A study from 2023 showed that there was a unique genetic profile in the microbiome of preterm births. There was a higher richness of diversity of microbes and a greater diversity of antimicrobial resistance genes. We have here a real problem with the vaginal microbiome and issues that we do not yet have much understanding of. Unfortunately, the noble Lord, Lord Leong, is not currently in his place, but I cross-reference here the debate that the noble Lord and I had, and an amendment that this House voted on, about regulating period products. An issue that I raised in the context of period products was reusable period products that have high levels of silver and nanosilver, which demonstrably have negative effects on the vaginal microbiome. Also, with the tampons I was talking about earlier, there are the pesticides but there is also evidence of heavy metals, which will have impacts on the vaginal microbiome.

I apologise for this having been a rather depressing speech. However, this situation is not inevitable. Companies are making products that are threatening the health of all of us very broadly, but particularly the most vulnerable in our society—those who are pregnant and the young babies who will be born prematurely. This is an area in which we need urgent government action. I have cited very recent studies, and the knee-jerk reaction to the Government from the Civil Service on these kinds of issues tends to be, “We’ve got to wait for more data and information”. However, if noble Lords look at the list of things that I have gone through, they will see that each one was a case where researchers were looking at one product and one factor, in isolation. No pregnant person is exposed to just one of these factors; everyone is being exposed to all of these as a cocktail, and the levels of all of them are going up all the time. Once we have put them out into the environment, we are unable to take them out. Surely, on preterm birth, on the state of the health of the nation, we need to apply the precautionary principle and take urgent action to rein in the corporates who are exposing us to all these threats.