Psychometric evaluation of the Japanese version of the fear of pain questionnaire-III and its association with dental anxiety: a cross-sectional study.

BACKGROUND: Fear of pain is a significant concern related to chronic pain and its impact on daily functioning. It is also associated with dental anxiety, highlighting its relevance in dental practice. This study aimed to validate the Japanese version of the Fear of Pain Questionnaire-III (FPQ-III) and explore its relationship with dental anxiety. METHODS: 400 participants completed the Japanese version of the FPQ-III, with 100 participants re-evaluated after one month. Convergent validity was tested against dental anxiety and pain catastrophizing, while discriminant validity was assessed by examining general anxiety and depression correlations. Confirmatory factor analysis was used to examine the factorial validity of the FPQ-III and a shortened version of the FPQ-III (FPQ-9). Item response theory was applied for each subscale to estimate the discriminative power of each item and draw a test information curve. Structural equation modeling (SEM) was used to investigate the relationship between fear of pain and dental anxiety. RESULTS: Data from 400 participants (200 women, 44.9 ± 14.5 years) were analyzed. The FPQ-III showed good internal validity, intra-examiner reliability, discriminant validity, and convergent validity. Confirmatory factor analysis results supported a three-factor structure, and the FPQ-9 showed a good fit. Test information curves demonstrated that the FPQ-9 maintained high accuracy over a similarly wide range as the FPQ-III. SEM revealed that fear of minor pain was associated with dental anxiety via fear of medical pain even in individuals without painful medical or dental experiences (indirect effect 0.48 [95% CI: 0.32-0.81]). Fear of severe pain tended to be higher in individuals with chronic pain compared to those without (latent mean values 0 vs. 0.27, p = 0.002) and was also associated with dental anxiety via fear of medical pain in women (indirect effect 0.15 [95% CI: 0.01-0.34]). CONCLUSION: The Japanese version of the FPQ-9 demonstrated high reliability and validity, making it a valuable tool in dental clinical and research settings. It provides insights into the fear of pain among individuals with chronic pain and dental anxiety, informing potential intervention strategies.

Pre-existing vertebral fracture is a risk factor for postoperative proximal junctional fracture after adult spinal deformity surgery: A propensity score-matched analysis.

BACKGROUND: Corrective surgery for adult spinal deformity has recently been increasingly performed because of aging populations and advances in minimally invasive surgery. Low bone mineral density is a major contributor to proximal junctional kyphosis after spinal long fusion. Assessment for low bone mineral density ideally involves both dual energy X-ray absorptiometry and identification of pre-existing vertebral fractures, the latter, requiring only standard equipment, being performed more frequently. We therefore aimed to examine the impact of pre-existing vertebral fractures on the incidence of type 2 proximal junctional kyphosis, including proximal junctional fracture and failure, after corrective surgery for adult spinal deformity. METHODS: We performed a retrospective, single institution study of 106 women aged over 50 years who had undergone corrective long spinal fusion for severely symptomatic spinal deformity from 2014 to 2017. We allocated them to three groups (with and without pre-existing vertebral fractures and with severe [Grades 2-3 according to Genant et al.'s classification] preexisting vertebral fractures) and used propensity score matching to minimize bias. The primary outcome was postoperative proximal junctional fracture and the secondary outcome proximal junctional kyphosis/failure. RESULTS: The primary and secondary endpoints were achieved significantly more often in the 28 patients with than in the 78 without preexisting vertebral fractures (total 41). The former group was also significantly older and had greater pelvic tilt and fewer fused segments than those without vertebral fractures. After propensity score matching, the incidences of the endpoints did not differ with pre-existing vertebral fracture status; however, patients with severe vertebral fractures more frequently had proximal junctional fractures postoperatively. Postoperative improvements in health-related quality of life scores did not differ with pre-existing vertebral fracture status. CONCLUSIONS: Severe pre-existing vertebral fractures are a risk factor for proximal junctional fracture after correction of adult spinal deformity.

The Reliability and Validity of the Japanese Version of the Modified Dental Anxiety Scale among Dental Outpatients.

INTRODUCTION: A careful assessment of dental anxiety is necessary for its management. The Modified Dental Anxiety Scale (MDAS) is one of the most commonly used questionnaires to measure dental anxiety in the world. The reliability and validity of the Japanese version of MDAS have been demonstrated using undergraduates and a few patients with dental anxiety. The aim of the present study was to examine the reliability and validity of the Japanese version of the MDAS using a wide range of age samples in dental clinics. METHODS: A total of 275 outpatients (145 men and 130 women; 21-87 years) from two dental clinics participated in the present study. Dental anxiety was assessed using the Japanese version of the MDAS and the Dental Fear Survey (DFS). The psychometric evaluation included exploratory factor analysis, and Cronbach's α was used to evaluate for internal consistency. Criterion validity was assessed by correlating the MDAS and DFS scores using Spearman's correlation coefficient. validity was evaluated by examining related factors' differences in the MDAS score (e.g., sex and negative dental experiences). RESULTS: Six patients (2.2%) reported high levels of dental anxiety (MDAS score ≥ 19). The internal consistency of the MDAS score was high (Cronbach's α = 0.88). Dental anxiety was significantly higher among women (P=0.007), in patients with previous negative dental experiences (P < 0.001), and among those with lower frequencies of dental visits (P < 0.001). The MDAS score was significant and related to age (r = 0.48) and the DFS score (r = 0.87). Factor analysis revealed all items measured only one construct. CONCLUSIONS: The Japanese version of the MDAS score was found to be a reliable and valid measure of dental anxiety among dental outpatients. It could be useful for the Japanese dental practitioner to measure dental anxiety in a clinical setting.

A pilot randomized controlled trial of the shogi-assisted cognitive behavioral therapy (S-CBT) preventive stress management program.

BACKGROUND: Shogi is a traditional board game in Japan. A preventive stress management program based on Shogi-assisted cognitive behavioral therapy (S-CBT) was applied in the Japanese municipality of Kakogawa City. The study aimed to develop an S-CBT preventive stress management program for the elderly and determine its efficacy. METHODS: The participants were 67 elderly men with amateur-level Shogi skills. They were randomly assigned to either the S-CBT group (n = 33) or the waiting-list control group (n = 34). The S-CBT program was conducted over six 90-min sessions. The outcome measures were recorded using K6 instrument, the Japanese version of the abbreviated Lubben Social Network Scale, five items on cognitive behavioral functioning, and subjective well-being scale. RESULTS AND CONCLUSIONS: The dropout rates of the S-CBT group and waiting-list control groups were 36.4 and 44.1%, respectively. Effect sizes (Cohen's d) and 95% confidence intervals (CIs) were calculated for each group. Domains that changed immediately after the S-CBT intervention were problem-solving skills, self-reinforcement, and negative automatic thoughts. Future research should promote mental and physical health through the design of intervention programs using familiar materials. TRIAL REGISTRATION: University Hospital Medical Information Network (UMIN CTR) UMIN000036003 .

Performance of Forward Roll Maneuvers Following Corrective Spinal Fusion for Idiopathic Scoliosis Patients.

BACKGROUND: Fusion surgeries for scoliosis patients are believed to deteriorate sports performance; in particular, forward roll should deteriorate, but no literature is available to substantiate this claim. HYPOTHESIS: The extent of postoperative deterioration can vary according to surgery type or curve type. PATIENTS AND METHODS: Idiopathic scoliosis patients between 10 and 29 years of age who underwent correction and fusion surgeries at our hospital were included in this study. Forward roll was recorded on video preoperatively and 1-year postoperatively. Performances were evaluated twice on a 10-point scale by two blinded examiners. Preoperative and 1-year postoperative upright spinal radiographs were analyzed for the Lenke classification, number of fused vertebrae, upper and lower instrumented vertebrae, major curve Cobb angle, thoracic kyphosis, lumbar lordosis, and surgical procedures. RESULTS: The average age was 16 years. Curve types according to the Lenke classification were: 15, type 1; 5, type 2; 14, type 5; 2, type 6. The mean number of fused vertebrae was 6.9 (3.2 for anterior surgeries and 9.3 for posterior surgeries). The mean preoperative assessment of forward roll was 9.6 points, and the 1-year postoperative assessment was lower at 8.8 points. Cluster analysis classified patients into 3 groups: long fusion with marked performance deterioration (C1), long fusion with minimal deterioration (C2), and short fusion with minimal deterioration (C3). The upper and lower instrumented vertebrae in C1 were more distal than those in C2. CONCLUSION: Patients with thoracic curves were classified into two groups, and patients who underwent surgeries with more distal upper and lower instrumented vertebra levels exhibited lower postoperative performance. However, patients with Lenke 5 curves who underwent anterior surgery showed better preoperative performance than other patients who underwent posterior surgery, showing minimal postoperative deterioration. LEVEL OF EVIDENCE: III;Therapeutic Study.

Cognitive profile of patients with burning mouth syndrome in the Japanese population.

The present study investigated which cognitive characteristics, including cancer phobia, self-efficacy, pain-related catastrophizing, and anxiety sensitivity, affect burning mouth syndrome (BMS) symptoms in the Japanese population. A total of 46 BMS patients (44 women and 2 men; mean age, 59.98 +/- 9.57 years; range, 30-79 years) completed a battery of questionnaires, including measures of pain severity, oral-related quality of life (QOL), stress-response, pain-related catastrophizing, self-efficacy, anxiety sensitivity, and tongue cancer phobia. The Pain Catastrophizing Scale (PCS), General Self-Efficacy Scale (GSES), and Anxiety Sensitivity Index (ASI) scores in the BMS patients were compared with the scores of Japanese healthy participants (PCS, n = 449; GSES, n = 278; ASI, n = 9603) reported in previous studies. Catastrophizing and anxiety sensitivity were significantly higher in the BMS patients than in the healthy subjects (P < 0.001). In BMS patients, catastrophizing was significantly correlated with pain severity, stress-response, psychological disability, social disability, and handicap. Cancer phobia was significantly correlated with psychological disability and handicap. Since catastrophizing showed a higher correlation with BMS symptoms than cancer phobia, catastrophizing might be a more significant cognitive factor affecting symptoms than cancer phobia in BMS patients in the Japanese population.

BPSM-D-19-00022R2 Subjective well-being and problem-solving skills for alleviating the stress of elderly men attending a randomized controlled trial of shogi-assisted cognitive behavioral therapy.

Shogi is a popular board game in Japan, and shogi-assisted cognitive-behavioral therapy (S-CBT) has been applied in Kakogawa City, a Japanese municipality. The purpose of this study was to clarify the effects of S-CBT on the subjective well-being of elderly men. Participants were 61 elderly men with amateur skill at shogi. They were randomly assigned to either the S-CBT group or a wait list group (control). The S-CBT group participated in a weekly, six-session S-CBT program. The intervention outcomes were scores on the K6, Lubben Social Network Scale, and a five-item cognitive-behavioral functioning scale. The Subjective Well-being Scale was used to assess happiness and satisfaction with life, and all the participants were classified into high- and low-happiness groups using the median score as the cutoff. The results showed that scores on "self-reinforcement" were significantly (P < 0.05) increased for those receiving S-CBT compared with controls, regardless of the participants' happiness scores. In contrast, the scores on "problem solving skills for alleviating stress" were significantly (P < 0.05) increased for those receiving S-CBT compared with controls only among those in the low-happiness group. These results remained significant after controlling for the effects of age and baseline scores on the K6, Social Network Scale, and "problem solving skills for alleviating stress" category. The S-CBT may be especially beneficial when focused on practical advice for the stress management of older people with low subjective well-being. (trial registration: 000036003 [UMIN, Japan]). Trial Registration: Trial registration number: 000036003 [UMIN, Japan].

Correction to: BPSM-D-19-00022R2 Subjective well-being and problem-solving skills for alleviating the stress of elderly men attending a randomized controlled trial of shogi-assisted cognitive behavioral therapy.

[This corrects the article DOI: 10.1186/s13030-019-0153-4.].

Gambling symptoms, behaviors, and cognitive distortions in Japanese university students.

BACKGROUND: This study was conducted to investigate the relationship between symptoms of gambling problems, gambling behaviours, and cognitive distortions among a university student population in Japan ages 20 to 29 years. We aimed to address the gap in knowledge of gambling disorders and treatment for this population. METHODS: Data were obtained from 1471 Japanese undergraduate students from 19 universities in Japan. Descriptive statistics and hierarchical multivariate regression analysis were used to investigate whether the factors of gambling cognitive distortions would have predictive effects on gambling disorder symptoms. RESULTS: Results indicated that 5.1% of the participants are classifiable as probable disordered gamblers. The bias of the gambling type to pachinko and pachislot was unique to gamblers in Japan. Of the students sampled, 342 self-reported gambling symptoms via the South Oaks Gambling Screen. Hierarchical multivariate regression analysis indicated that one domain of gambling cognitive distortions was associated significantly with gambling symptoms among the 342 symptomatic participants: gambling expectancy (ß = 0.19, p < .05). The multivariate model explained 47% of the variance in the gambling symptoms. CONCLUSION: This study successfully contributed to the sparse research on university student gambling in Japan. Specifically, our results indicated a statistically significant relationship between gambling cognitive distortions and gambling disorder symptoms. These results can inform the development of preventive education and treatment for university students with gambling disorder in Japan. The report also describes needs for future research of university students with gambling disorder.

Differences between pre-existing type and de novo type left convex thoracolumbar / lumbar scoliosis.

BACKGROUND: Lenke 5C type adolescent idiopathic scoliosis (AIS) with a Cobb angle of over 30 degrees has high risk of progression. The need for corrective surgeries for degenerative lumbar scoliosis has been increasing these days and some of those cases are pre-existing type scoliosis. However, it is said to be difficult to differentiate pre-existing type scoliosis from de novo type scoliosis. The purpose of this study is to analyze the relevant X ray metrics of degenerative lumbar scoliosis and to discover differences between pre-existing and de novo type scoliosis. METHODS: Of 54 consecutive patients who were diagnosed as candidates for corrective surgery for left convex thoracolumbar / lumbar scoliosis since December 2008, 19 patients over age 50 were included in this study. The average age was 60 years old (50-80 years old). All patients were female. Coronal and sagittal parameters were contrasted between two groups divided according to the existence of scoliosis in their adolescence; clear (AIS) and unclear (de novo). RESULTS: Eleven were AIS, and 8 were de novo. The average age was 54.0 years old for AIS and 67.4 for de novo (p<0.05). Cobb angles (69°, 49°) and L4 tilt (30°, 22°) were found to be significantly greater in AIS. Nash-Moe rotation assessment showed that rotational deformity was greater in AIS type than in de novo type. Lumbar lordosis (28°, 32°), thoracolumbar kyphosis (24°, 12°), sagittal vertical axis (37mm, 58mm), and pelvic incidence (51°, 60°) showed no significant difference between the groups, however, pelvic tilt (24°, 33°) showed significant difference. CONCLUSIONS: Among patients over 50 with degenerative thoracolumbar / lumbar scoliosis, those with pre-existing type scoliosis were found to have greater Cobb angle, greater L4 tilt, greater rotational deformity, less pelvic tilt, and were candidates for surgery at a younger age than those with de novo type scoliosis. In other words, those with de novo type scoliosis have less coronal deformity and worse sagittal pelvic alignment than those with pre-existing type scoliosis and are not considered candidates for surgery until a more advanced age. This study demonstrates some differences between pre-existing and de novo type scoliosis, contrasts the natural history of the two types of candidates for thoracolumbar / lumbar scoliosis surgery, and suggests the importance of performing surgery for Lenke 5C type adolescent idiopathic scoliosis at a younger age.