| Authors | Study approach | Study approach |
| Ali et al. [62] | Examined 114 knee arthroplasty cases with OA using the HADS | 23/55 dissatisfied patients suffered from anxiety;6/59 patients in satisfied group were anxious at 2-7 years; pain was lower in satisfied group |
| Axford et al. [9] | 54 cases with lower limb OA were studied using the HADS | Anxiety is common in OA and is related to pain and disability |
| Badura-Brzoza et al. [29] | Longitudinal study of 103 cases undergoing hip replacement surgery for primary OA using HADS | Total hip replacement outcomes are influenced by trait anxiety |
| Badel et al. [70] | 16 patients with temporoandibular joint OA 20 controls using the STAI | Patients with chronic pain had high anxiety levels before treatment |
| Chen et al. [51] | Cross sectional study of 192 out patients | Key predictors of sleep were high anxiety levels |
| Creamer et al. [15] | Cross-sectional study of 69 knee OA cases using STAI | Disability was associated with anxiety as measured on the STAI |
| Duivenvorden et al. [57] | 286 arthroplasty candidates with OA were examined using the HADS | Anxiety decreased after surgery but those with pre-operative anxiety had worse 3 and 12 month outcomes and less overall satisfaction than non-anxious patients |
| Hanusch et al. [65] | Examined 100 knee OA cases post-surgery with HADS | Anxiety was associated with a worse knee outcome score at one year post arthroplasty |
| Hernandez et al. [52] | Systematic review of 37 studies relating determinants of arthroplasty outcomes to baseline measures | Anxiety influences post op. pain |
| Hirshman et al. [69] | 104 knee OA cases undergoing surgery were studied using STAI | Patients with higher state and trait anxiety had worse function before and after surgery |
| Hodkinson et al. [68] | Examined aesthetic discomfort in172 hand OA cases using the HADS | Those with a high disease burden and anxiety had higher levels of aesthetic discomfort |
| Jacobs et al. [53] | 1020 knee OA surgeries followed for 2 years | 41.9% of less severe cases, reported anxiety, and were more dissatisfied than more severe cases |
| Liddle et al. [61] | Examined results revision surgery for OA in 3862 cases | Anxiety affected patient reported outcomes negatively |
| McHugh et al. [66] | 202 OA cases awaiting and undergoing surgery were studied using the HADS | Anxiety influenced 6 month recovery even though this was reduced after surgery in general |
| Montin et al. [24] | Longitudinal study hip OA cases before + after surgery | Pre-operative trait anxiety predicted health quality of life before and after surgery using the STAI |
| Salmon et al. [39] | Longitudinal study of 102 cases undergoing hip replacement surgery using PMS | Recovery at follow-up was slower in those with greater anxiety |
| Scopaz et al. [49] | 182 cases with knee OA completed the BAI | Higher anxiety scores rates were associated with worse function scores |
| Sinikallio et al. [19] | Examined 111 cases of OA, 35-75 years age with knee OA using the BAI | Negative emotions impact pain and disability |
| Smith & Zautra [18] | 88 females with OA were studied using the MHI | Anxiety was related to elevations in current and future pain at twice the rate for depression |
| Tallon D [50] | 113 knee OA cases were interviewed | Anxiety about their condition caused many to be distressed |