Fig 1.
TKR/UKR, total and uni-compartmental knee replacement; CPRD, Clinical Practice Research Datalink GOLD; HES, English Hospital Episode Statistics; PROMs, Patient Reported Outcome Measures; OKS, Oxford Knee Score; Underweight BMI, Body Mass Index under 18.5 Kg/m2.
Fig 2.
Distribution of the treatment effect score for patients who did, and did not, respond to surgery.
Red = poor pain outcome, Blue = good pain outcome.
Fig 3.
Forest plot of predictors of poor pain outcomes.
Table 1.
Descriptive statistics describing the total number of patients with each potential risk factor, and the proportion of patients with a poor pain outcome, according to whether or not they have the factor.
Fig 4.
Adjusted risk differences for predictors of poor pain outcomes.
Table 2.
Pain state change between pre-operative and 6-month post-operative assessments.