Prevalence, pain intensity and symptoms associated with primary dysmenorrhea: a cross-sectional study.

BACKGROUND: Primary dysmenorrhea (PD) is an etiological cyclic pelvic pain related to the menstrual period; it can negatively impact women's quality of life and productivity. The aim of the present study was to estimate the prevalence of PD and analyze associated symptoms in Brazilian women. METHODS: An online cross-sectional study was carried out in Brazil, with a structured questionnaire regarding dysmenorrhea and associated symptoms. PD intensity was measured with the Numerical Rating Scale for Pain and classified as mild (1-3), moderate (4-7) and severe (> 8). The association between qualitative variables was performed using Pearson's Chi-Square Test. The quantification of this association was measured using multinomial logistic regression models, with calculation of Odds Ratio and confidence interval. A significance level of 5% was considered. RESULTS: A total of 10,070 women were included. Most participants classified PD intensity as moderate (40.4%, 41.9% and 49.7%) and severe (21.2%, 24.8% and 28.4%) in the previous month, 3 months and 5 years, respectively. The most common symptoms associated with PD were irritability, abdominal distension sensation, anxiety and feeling more emotional. The increased of the risk (OR > 1.0) for moderate and severe PD-related pain intensity is related to age, nulliparity and presence PD since adolescence. CONCLUSION: There is a high prevalence of PD among Brazilian women, and the most common symptoms reported were irritability, abdominal distension sensation, anxiety and feeling more emotional.

Presenteeism and associated factors among women with menstrual symptoms.

PURPOSE: Menstrual characteristics can affect a woman's productivity at work and college, but studies in a general population of adult women are scarce. In addition, it is important to know which menstrual symptoms are most associated with presenteeism in women to promote specific health actions. The present study aimed to assess menstrual symptoms associated with presenteeism in adult women. METHODS: Online cross-sectional study in which menstrual characteristics, including menstrual flow, age of menarche, menstrual pain and cycle duration were assessed by a self-report questionnaire. The menstrual pain intensity was assessed by Numerical Rating Scale, and the presenteeism, by the Stanford Presenteeism Scale-6 (SPS-6). Women were divided in two groups, with and without presenteeism, based on the SPS-6 cutoff point. Data were analyzed by binary logistic regression and presented as odds ratios (OR). RESULTS: Among the 430 women who participated in the study, 44.2% were classified as with presenteeism. Women with severe menstrual flow were more likely to have presenteeism (OR = 2.12) compared with women with mild and moderate menstrual flow. The higher menstrual pain intensity the higher the chances of a woman presenting with presenteeism (OR = 1.29). CONCLUSIONS: These menstrual characteristics (intensity of menstrual flow and menstrual pain) seem to affect women's productivity at work and/or college, and should be assessed in research and clinical practice. Thus, public policies on women's health can be carried out based on these results.

Measurement properties of patient-reported outcome measures for women with dysmenorrhea: A systematic review.

BACKGROUND: Dysmenorrhea, or menstrual pain, is a subjective experience, and can only be assessed by patient-reported outcomes. These instruments should be reliable, valid and responsive. AIM: To identify and critically appraise the available evidence for the measurement properties of specific patient-reported outcome measures used for dysmenorrhea. METHODS: The PRISMA statement was used to report this systematic review. Databases searched were PubMed, SCOPUS, CINAHL, Web of Science, ScienceDirect and Google Scholar (April 2021; updated on February 2023). Original studies with primary data collection, with no restriction on language and publication date that reported psychometric properties of one or more dysmenorrhea-related patient-reported outcome measure. The literature searches, selection of studies, data extraction and assessment of the risk of bias were performed independently by two reviewers and followed the COSMIN guidelines. RESULTS: Thirty studies were analysed in this review, and 19 patient-reported outcome measures were evaluated. The instruments varied in relation to the measured construct and measurement properties (validity, reliability and responsiveness). The methodological quality of the studies and the quality of evidence of the patient-reported outcome measures were variable. Among the 13 studies that reported the development of patient-reported outcome measures, most had inadequate methodological quality, and the overall rating was insufficient or inconsistent. CONCLUSIONS: The Dysmenorrhea Symptom Interference (DSI) scale was the only identified patient-reported outcome measure that has the potential to be recommended because of its sufficient rating combined with moderate quality of evidence for content validity. Future studies should further evaluate the measurement properties of the existing patient-reported outcome measures, or develop new patient-reported outcome measures following the COSMIN methodology. PATIENT OR PUBLIC CONTRIBUTION: Not applicable as this is a systematic review. TRIAL REGISTRATION: PROSPERO protocol: CRD42021244410. Registration on April 22, 2021.

'Painting my pain': the use of pain drawings to assess multisite pain in women with primary dysmenorrhea.

BACKGROUND: To verify the use of pain drawing to assess multisite pain in with primary dysmenorrhea (PD) and to assess its divergent validity, test-retest reliability, intra- and inter-rater reliability and measurement errors. METHODS: Cross-sectional study. Adult women with self-reported PD three months prior to the study. Women answered the Numerical Rating Scale (NRS) and the pain drawing during two consecutive menstruations. The pain drawings were digitalized and assessed for the calculation of total pain area (%). Intra- and inter-rater reliability and the test-retest reliability between the first and the second menstruations were assessed with the intraclass correlation coefficient (ICC). Measurement errors were calculated with the standard error of measurement (SEM), smallest detectable change (SDC) and the Bland-Altman plot. Spearman correlation (rho) was used to check the correlation between the total pain area and pain intensity of the two menstruations. RESULTS: Fifty-six women (24.1 ± 3.1 years old) participated of the study. Their average pain was 6.2 points and they presented pain in the abdomen (100%), low back (78.6%), head (55.4%) and lower limbs (50%). All reliability measures were considered excellent (ICC > 0.75) for the total pain area; test-retest SEM and SDC were 5.7% and 15.7%, respectively. Inter-rater SEM and SDC were 8% and 22.1%, respectively. Correlation between total pain area and pain intensity was moderate in the first (rho = 0.30; p = 0.021) and in the second menstruations (rho = 0.40; p = 0.002). CONCLUSION: Women with PD presented multisite pain, which could be assessed with the pain drawing, considered a reliable measurement.

Numerical rating scale for dysmenorrhea-related pain: a clinimetric study.

Objective: To evaluate the numerical rating scale (NRS) measurement properties in women with dysmenorrhea. Methods: This was an online clinimetric study. Brazilian women aged over 18 years old with internet access to respond to online instruments were included in the study. We evaluated criterion validity (comparing women with and without dysmenorrhea), construct validity between the NRS and the bodily pain domain of the SF-36, test-retest reliability, and measurement errors (in women with dysmenorrhea). Results: Two hundred thirty-eight women with and 192 without dysmenorrhea participated in the study. For criterion validity, the area under the receiver operating characteristic curve was 0.902 (95%CI, 0.873-0.931), and a cutoff point of 3 was considered to have the best sensitivity (83%) and specificity (86%). For construct validity, the NRS showed a moderate negative correlation with the SF-36 bodily pain domain (r=-0.46; p < 0.001). For test-retest reliability and measurement errors, 105 women whose symptoms did not change between 7 and 10 days of retest, with intraclass correlation coefficient = 0.90, standard error of measurement = 0.97, and smallest detectable change = 2.76 points. Conclusions: The NRS can be considered a valid and reliable patient-reported outcome measure for assessing dysmenorrhea-related pain intensity.

Translation, cross-cultural adaptation to Brazilian Portuguese and measurement properties of the WaLIDD score.

Objective: Dysmenorrhea is the pain related to menstruation; to screen for the symptoms, a working ability, location, intensity of days of pain, and dysmenorrhea (WaLIDD) score was created. The purpose of this work was to culturally adapt and assess the measurement properties of the WaLIDD score for dysmenorrhea in Brazilian women. Methods: In this cross-sectional online study, we evaluated women with and without dysmenorrhea. Criterion validity and construct validity were assessed, respectively, by the Receiver Operator Characteristic (ROC) curve and correlations with the bodily pain and social functioning domains of medical outcomes study 36-item short-form health survey (SF-36), self-report of absenteeism and Stanford Presenteeism Scale for presenteeism. Test-retest reliability and measurement errors were assessed, respectively, by intraclass correlation coefficient (ICC) and Bland and Altman Graph. Results: 430 women completed the test, 238 (55.4%) women had dysmenorrhea, and 199 (46.3%) answered the questionnaire twice for the retest. The cutoff points ≥4, ≥5, and ≥5 could discriminate between women with and without dysmenorrhea, absenteeism, and presenteeism related to dysmenorrhea, respectively. Correlations between SF-36 - pain and social functioning domains and WaLIDD score were weak to strong and negative. For WaLIDD total Score, ICC was 0.95 and the limits of agreement were -1.54 and 1.62. Conclusion: WaLIDD score is a short, valid and reliable instrument to screen and predict dysmenorrhea and could predict absenteeism and presenteeism related to dysmenorrhea in Brazilian women.

Are menstrual symptoms associated with central sensitization inventory? A cross-sectional study.

BACKGROUND: Dysmenorrhoea is a prevalent pain condition that affects women of reproductive age, who are monthly exposed to this pain, usually until they reach adult age, or even after that, which can predispose them to Central Sensitization. The present study aimed to observe the association between menstrual characteristics and central sensitivity symptoms in women. METHODS: Cross-sectional study. Brazilian women (n = 10,402) answered an online form comprised of questions regarding their gynaecological history, the Numerical Rating Scale for pain and the Central Sensitization Inventory, part A. For the analysis, we separated women into two groups: the Central Sensitivity Symptoms group (n = 5200) and the no Central Sensitivity Symptoms group (n = 5202). We performed a binary logistic regression with the backward insertion method for the variables with p < 0.05 in the bivariate analysis between groups. The significance level was set at 5%. RESULTS: Prevalence of dysmenorrhoea was 67.3%, and 32.2% of women in the Central Sensitivity Symptoms group reported pain >8 during their menstrual period. The logistic regression showed that greater levels of menstrual pain (odds ratio 1.12), gynaecological diseases (odds ratio 1.51), presence of dysmenorrhoea since adolescence (odds ratio 1.20) and irregular menstrual cycles (odds ratio 1.47) increased the likelihood of women presenting with Central Sensitivity Symptoms (p < 0.05 for all comparisons). CONCLUSIONS: The present study shows that Central Sensitivity Symptoms are present in about 50% of women and are associated with menstrual characteristics such as dysmenorrhoea-related pain intensity, cycle regularity, presence of dysmenorrhoea since adolescence accompanied by gynaecological diseases. SIGNIFICANCE: Central sensitivity symptoms occur in 50% of women and are more present in women with dysmenorrhoea. They are associated with cycle regularity, presence of dysmenorrhoea since adolescence and gynaecological diseases. LIMITATIONS: Women that suffer from dysmenorrhoea and are of higher socio-economic and educational levels may have been more propense to respond to the invitation; as such, the findings of the present study should be carefully interpreted.

Translation, cross-cultural adaptation to Brazilian Portuguese and measurement properties of the WaLIDD score

Abstract Objective: Dysmenorrhea is the pain related to menstruation; to screen for the symptoms, a working ability, location, intensity of days of pain, and dysmenorrhea (WaLIDD) score was created. The purpose of this work was to culturally adapt and assess the measurement properties of the WaLIDD score for dysmenorrhea in Brazilian women. Methods: In this cross-sectional online study, we evaluated women with and without dysmenorrhea. Criterion validity and construct validity were assessed, respectively, by the Receiver Operator Characteristic (ROC) curve and correlations with the bodily pain and social functioning domains of medical outcomes study 36-item short-form health survey (SF-36), self-report of absenteeism and Stanford Presenteeism Scale for presenteeism. Test-retest reliability and measurement errors were assessed, respectively, by intraclass correlation coefficient (ICC) and Bland and Altman Graph. Results: 430 women completed the test, 238 (55.4%) women had dysmenorrhea, and 199 (46.3%) answered the questionnaire twice for the retest. The cutoff points ≥4, ≥5, and ≥5 could discriminate between women with and without dysmenorrhea, absenteeism, and presenteeism related to dysmenorrhea, respectively. Correlations between SF-36 - pain and social functioning domains and WaLIDD score were weak to strong and negative. For WaLIDD total Score, ICC was 0.95 and the limits of agreement were −1.54 and 1.62. Conclusion: WaLIDD score is a short, valid and reliable instrument to screen and predict dysmenorrhea and could predict absenteeism and presenteeism related to dysmenorrhea in Brazilian women.

Lifestyle of school-aged children with and without developmental coordination disorder

Abstract Aim: To analyze the association between lifestyle and signs of DCD in children aged 7 to 10. Methods: A total of 93 schoolchildren aged 7 to 10 were recruited for this study. Developmental Coordination Disorder Questionnaire (DCDQ), Movement Assessment Battery for Children - Second edition (MABC-2) and the Inventory of Lifestyle in Childhood and Adolescence (ILCA) were used. Lifestyle was analyzed with basis on specific tasks performed frequently or infrequently at home and outdoor, considering children with positive and negative DCD signs. Results: Only the item "performing household tasks" showed a significant association (p = 0.04) between groups. Children with DCD signs displayed a more infrequent behavior (73.1 %) in performing such tasks when compared to those without (26.9 %). Conclusion: Children with DCD signs presented a more sedentary behavior, expressed specifically in the less frequent performance of household tasks. The result may be explained by parental involvement in this sort of task. Further studies, however, are needed in order to broaden this understanding.