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发布于:2018-3-9 12:51:04  访问:9 次 回复:0 篇
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Ating greater physical or mental health impairment [23]. A score of 50 indicates
Ating greater physical or mental health Title Loaded From File N intervention schools and those in manage schools (table 1). Figure 2A impairment [23]. All patients were mailed health questionnaires to complete and return at their pre-surgery or follow-up assessments. Patients who did not return during their assessment were contacted by telephone by a person independent of the research team.Statistical analysisprosthesis prior to 12 months follow-up (3 knees, 9 hips), underwent contralateral or other large joint arthroplasty within 12 months (15 knees, 20 hips), did not complete surveys at both time-points (18 knees, 15 hips). Therefore follow-up data was available for 1016/1065 (95.4 ) of patients who underwent TKR and 835/891 (93.7 ) of patients who underwent THJR.Knee arthroplasty analysesFor each of TKR‘s and THR‘s, patient characteristics and procedure-related variables were summarized as mean and standard deviation (mean ?SD) for continuous variables, and proportions (percentages) for categorical variables. For each of the TKR and THR datasets, patients were divided into those with `low‘ SES score 5 (SESLow) and `high‘ SES score 6 (SESHigh), and univariate methods (t-test, chi-square and analysis of variance) were used to compare characteristics in the two groups. Linear regression models were run to determine the independent predictors (including SES score on a continuous scale from 1 to 10) of each of the outcome variables: IKSSPain, IKSSFunction, PCSKnee and MCSKnee, HHSPain, HHSFunction, PCSHip and MCSHip. For each outcome, the dependent variable was the outcome measure at 12 months post-surgery, with the pre-operative `baseline‘ measures included as independent variables. Linearity was tested using plots of observed versus predicted values and plots of residuals versus predicted values in order to ensure that the linearity assumption was satisfied for regression modelling. We also ran models wherein the dependent variable was the change in outcome measure (post-operative minus pre-operative); the results were very similar to the first set of models and therefore we have not presented these here (see Additional file 1). Results of linear regression were presented as a coefficient (parameter estimate) for each independent variable, with corresponding 95 confidence interval (95 CI) and p value. P values 0.05 were deemed statistically significant. All analyses were performed using STATA 11 software (StataCorp LP, Texas, USA).Characteristics of the 1,016 patients who underwent TKR are summa.Ating greater physical or mental health impairment [23]. A score of 50 indicates no impairment; 40?9 mild impairment; 30?9 moderate impairment; and < 30 severe impairment. The SF-12 is commonly used to measure physical and mental wellbeing in the clinical setting [24] and specifically in both TKR and THR [25,26]; it is validated for use in the Australian population [27]. For THRs, the outcome variables were HHS pain (HHSPain), and function (HHSFunction) subscales and SF-12 at 12 months post arthroplasty. HHSPain and HHSFunction are two of the four subscales of the HHS [16]. HHSPain scoreDowsey et al. BMC Musculoskeletal Disorders 2014, 15:148 http://www.biomedcentral.com/1471-2474/15/Page 3 ofranges from no pain (44 points) to slight (40 points), mild (30 points), moderate (20 points), severe (10 points) pain, and disabled (0 points). The functional score range is from 0?7 and assessment is based on walking distance, ability to climb stair, the use of gait aids, limping, ability to don shoes and socks, catch public transport and sit.
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