Can someone help?

How easy is access to/from the Jubilee line at Baker St or St John's Wood?

I'm on crutches after breaking my hip, so can't manage a flight of stairs,
but can probably cope with the escalator if it isn't busy. [Travelling about
3pm]

I'm OK at the start of journey, Stratford, since that's a pair of lifts.

Thanks

Ken

KenATwelsbywrites.com