Psychosocial and Sensitization Profiles in Overlapping Pelvic and Temporomandibular Pain. A Cross‑Sectional Analysis of Chronic Overlapping Pain Mechanisms

This dataset supports a cross-sectional study examining psychosocial and central sensitization profiles in adults with co-occurring temporomandibular pain (TMP) and chronic pelvic pain (CPP). The central hypothesis was that individuals reporting both conditions would exhibit greater sensitization, psychosocial burden, and poorer quality of life compared to those with either condition alone or no pain, and that their co-occurrence would be explained by shared central mechanisms rather than independent regional factors.

Data were collected via a structured online survey from 133 adults classified into four groups based on self-reported pain localization: TMP only, CPP only, both, or no chronic pain. Demographic variables included age, sex, anthropometrics, marital and smoking status, physical activity, and pain duration. Socioeconomic variables comprised educational level (ISCED classification) and monthly household income (Spanish national deciles). Overlapping pain presentations were screened using the Chronic Overlapping Pain Conditions Screener (COPC-S). Pain intensity in temporomandibular and pelvic regions was rated on the Numerical Rating Scale (NRS). Kinesiophobia was measured with the Tampa Scale for Temporomandibular Disorders (TSK-TMD), central sensitization symptoms with the Central Sensitization Inventory (CSI), health-related quality of life with the SF-12 (physical and mental composites), perceived stress with the Perceived Stress Scale-10 (PSS-10), and state anxiety with the shortened State-Trait Anxiety Inventory (STAI-6), all validated for Spanish-speaking populations.

The overlapping pain group showed the highest sensitization, stress, anxiety, and kinesiophobia scores alongside the poorest quality of life. Fear of movement, perceived stress, and sensitization were each independently associated with pelvic pain after multivariable adjustment. Each row represents one de-identified participant with aggregated instrument scores. This dataset can support replication, secondary analyses, or benchmarking of psychosocial profiles in chronic overlapping pain research.