James Hollingshead
Analyst · JPMorgan.
I think there's a bunch of things. And let me start with the stocking question and then come back to the competitive question. So stocking, we're only ever going to call that out if there's something unusual. And channel -- the stock in the channel is back to normal. We don't see anything unusual happening, and we're not going to talk about that unless we ever see something change that we think changes the trend or whatever. So that dynamic is totally ordinary in the quarter.
So on the competitive position, we feel really strong about our competitive position. We're very, very confident in our competitive position. New customer starts in the first quarter in the U.S. came in right in line with our expectations, and obviously, in Europe did really, really well, which led us to raise our guide.
And I think competitively -- give me an opportunity to just say a little bit about how we see the dynamic, which I'll try to be concise with. In the U.S. in type 1, the bulk of the market is still on MDI, as you all know. So we estimate that, as we've said before, 40% of type 1 patients in the U.S. are using some sort of pump technology and 60% are not. Our offering in Omnipod 5 has been designed to convert people off of MDI onto our technology because it's so simple to use, simple to put on, simple to use, simple to stay on, easy to access, great economics and great clinical outcomes.
And so that's why we always say MDI is our target market. And from a competitive positioning point of view, we win that battle very, very handily. We clearly lead the market in MDI. And it's really Omnipod 5 that's growing in the market in type 1 for technology because we have such a clear leadership position there. In the remaining 40% that's penetrated, you do see there's a portion of that market which does have some competitive switching.
And what we see over and over again and again in this quarter is that we have the net winners in the competitive switching game, and that's a smaller part of the market to begin with. And then it's only a fraction of that market that's up for conversion at any given time because of the 4-year lock-in on the tubed pumps. But we are clearly the net winners in any kind of competitive switching dynamics.
So in sum, we lead in type 1, clearly. We lead in type 2, clearly. We lead very clearly in MDI, and we win the competitive switching game in the installed base. And so we feel very confident. Omnipod 5 wins everywhere it goes. And we see that over and over again.