The influence of obesity on functional outcomes and patient satisfaction 8 weeks after total knee arthroplasty: results of the prospective FInGK study

Table 4 Factors associated with higher WOMAC change 2 months after TKA: results from linear regression analyses (n = 204)

Characteristics	β	95% CI	p
Intercept	-37.75	-59.06-(-16.44)	0.001
Sex
Female	0.32	-4.48-5.11	0.897
Age	0.09	-0.17-0.35	0.495
Level of education
High	-0.87	-6.96-5.22	0.778
Middle	0.47	-4.62-5.56	0.856
Marital status
Married	2.88	-2.06-7.84	0.251
Smoking status
No (longer)	6.81	-1.22-14.83	0.096
Obesity status
Non-obese	6.33	1.55–11.12	0.010
WOMAC baseline score	0.76	0.57–0.93	0.000
WHO-5 baseline score	0.10	-0.01-0.21	0.068

n = Number of subjects; CI = Confidence Interval; Std. Error = Standard Error; TKA = Total Knee Arthroplasty; WOMAC = Western Ontario and McMaster Universities Osteoarthritis Index; WHO-5 = WHO-Five Well-Being Index; Sig. findings in bold

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