The survey of 650 manufacturers and 650 service providers showed that growth was lower than expected and was at a level not seen since the financial crash, if the months of the pandemic are excluded.
Scores below 50 on the index indicate economic contraction.
While a score of 48 was expected, a score of 45 was recorded for UK manufacturing output, a 29-month low.
Economic contraction was recorded across multiple categories. A 21-month low on the index was recorded for both the PMI business activity index and the composite output index.