uPVC door with no central bar - how secure?

Possom

Is a uPVC door (for back of house) which has no central bar (just double glazing the full length of the door), any less secure than a uPVC door which also has a horizontal uPVC bar in the centre?

Does the central uPVC bar it stronger, so more difficult to break into?

Or is there very little difference?

Thanks

thebaldwindowfitter

the only reason it is stronger is that there are two pieces of glass makes it harder to get through if the glass is broken