Get a Grip on Factors Related to Grip Strength in Persons With Hand Osteoarthritis: Results From an Observational Cohort Study

Objective To compare levels of grip strength in individuals with hand osteoarthritis (OA) normative values, and to examine how OA severity other biopsychosocial factors are associated strength. Methods Levels across age groups were compared values from the general population sex-stratified analyses using 2-sample t-tests. Associations between radiographic (Kellgren/Lawrence sum score) different joint same examined 300 Nor-Hand study linear regression. Analyses repeated markers pain, demographic factors, comorbidities, psychological social as independent variables. We adjusted for age, sex, body mass index. Results Individuals had lower than population, especially <60 years. In thumb base joints, increasing (range 0–8) presence pain (? = –0.83 [95% confidence interval (95% CI) –1.12, –0.53] ? –2.15 CI –3.15, –1.16], respectively). Negative associations also found women, low education, higher comorbidity index, resting heart rate. Conclusion have population. Our results support idea that studies on should include an outcome measure. However, be considered when is being interpreted, because such socioeconomic physical fitness, comorbidities negatively