Kaj Sparle Christensen
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View article: Correction: Grief trajectories and long-term health effects in bereaved relatives: a prospective, population-based cohort study with ten-year follow-up
Correction: Grief trajectories and long-term health effects in bereaved relatives: a prospective, population-based cohort study with ten-year follow-up Open
[This corrects the article DOI: 10.3389/fpubh.2025.1619730.].
View article: Validating the 15-item stress anxiety depression scale (SAD-15) using Rasch analysis
Validating the 15-item stress anxiety depression scale (SAD-15) using Rasch analysis Open
View article: Clinical assessment of recurrent cancer: a Danish cohort study in general practice
Clinical assessment of recurrent cancer: a Danish cohort study in general practice Open
Background: General practitioners (GPs) may detect cancer recurrence between specialised follow-up visits or after completed follow-up. Knowledge of cancer recurrence detection is needed to inform GP decision-making in general practice. Ai…
View article: Grief trajectories and long-term health effects in bereaved relatives: a prospective, population-based cohort study with ten-year follow-up
Grief trajectories and long-term health effects in bereaved relatives: a prospective, population-based cohort study with ten-year follow-up Open
Background Bereavement may affect the health of relatives, causing increased use of health care services and increased mortality shortly after the patient's death. However, the long-term consequences for those with a high level of grief sy…
View article: Detecting cancer recurrence in general practice: a Danish national cohort study
Detecting cancer recurrence in general practice: a Danish national cohort study Open
Background: General practitioners (GPs) may detect cancer recurrences between specialised visits or after completed follow-up. There is limited evidence on diagnostic routes to detecting cancer recurrence. Aim: To examine the level of GP i…
View article: The assessment of psychological well-being in systemic sclerosis: a clinimetric validation
The assessment of psychological well-being in systemic sclerosis: a clinimetric validation Open
View article: Implementation and acceptability of the Caregiver Care Model in general practice: a mixed-method feasibility study
Implementation and acceptability of the Caregiver Care Model in general practice: a mixed-method feasibility study Open
View article: Heterogeneity in depression treatment trajectories and associated social factors: a longitudinal cohort study in older adults in Denmark
Heterogeneity in depression treatment trajectories and associated social factors: a longitudinal cohort study in older adults in Denmark Open
Introduction While depression trajectories have been extensively studied in recent decades, research has predominantly focused on younger and middle-aged individuals, often overlooking vulnerable older patients. Classifying patients based …
View article: Depression Treatment Trajectories and Associated Social Determinants: A Three‐Year Follow‐Up Study in 66,540 Older Adults Undergoing First‐Time Depression Treatment in Denmark
Depression Treatment Trajectories and Associated Social Determinants: A Three‐Year Follow‐Up Study in 66,540 Older Adults Undergoing First‐Time Depression Treatment in Denmark Open
Objective This study aimed to describe depression treatment patterns, identify unique trajectory groups using a group‐based trajectory approach, and explore associated social determinants in older adults undergoing first‐time depression tr…
View article: Sociodemographics and clinical factors associated with depression treatment outcomes in 65,741 first-time users of selective serotonin reuptake inhibitors: A Danish cohort study in older adults
Sociodemographics and clinical factors associated with depression treatment outcomes in 65,741 first-time users of selective serotonin reuptake inhibitors: A Danish cohort study in older adults Open
View article: Identifying impaired mental health in patients with type 2 diabetes: a cross-sectional study in general practice
Identifying impaired mental health in patients with type 2 diabetes: a cross-sectional study in general practice Open
Background Type two diabetes (T2D) is linked to impaired mental health. International guidelines emphasise the importance of including psychological aspects in diabetes care. Yet, no systematic approach has been implemented to assess menta…
View article: Rasch analysis of the self efficacy (SE-12) questionnaire measuring clinical communication skills
Rasch analysis of the self efficacy (SE-12) questionnaire measuring clinical communication skills Open
The SE-12 demonstrates good construct validity and excellent reliability. Minor issues regarding local dependency and differential functioning require attention.Innovation: A 5-item version could be explored without compromising validity a…
View article: Improving mental health in chronic care in general practice: study protocol for a cluster-randomised controlled trial of the Healthy Mind intervention
Improving mental health in chronic care in general practice: study protocol for a cluster-randomised controlled trial of the Healthy Mind intervention Open
View article: Mental healthcare utilisation among Danish formerly deployed military personnel and their civilian counterparts: a cohort study
Mental healthcare utilisation among Danish formerly deployed military personnel and their civilian counterparts: a cohort study Open
Background: Prior studies comparing the mental healthcare utilisation (MHU) of Danish formerly deployed military personnel (FDP) with the general population have not included data on psychotherapy through the Defence or talking ther…
View article: A comparison of the original major depression inventory with a modified version: A <scp>Danish</scp> validation study
A comparison of the original major depression inventory with a modified version: A <span>Danish</span> validation study Open
Background The Major Depression Inventory (MDI) is a patient‐reported outcome measure used by general practitioners to assist with diagnosing and evaluation of the severity of a patient's depression. However, recent studies have questioned…
View article: Patient Health Questionnaire-9: a clinimetric analysis
Patient Health Questionnaire-9: a clinimetric analysis Open
The PHQ-9 is an instrument with potential clinical utility as an overall index of depression, mainly for screening purposes. Substantial revision, particularly in the wording of over- and under-discriminating items, is needed.
View article: Rasch Analysis and Its Relevance to Psychosomatic Medicine
Rasch Analysis and Its Relevance to Psychosomatic Medicine Open
Over the years, Psychotherapy and Psychosomatics has published papers on numerous new psychosomatic measures [1], most notably the Diagnostic Criteria for use in Psychosomatic Research [2] and the PsychoSocial Index [3] but also measures o…
View article: How to support caregivers in general practice: development of the Caregiver Care Model
How to support caregivers in general practice: development of the Caregiver Care Model Open
Background: Caring for a family member can be demanding, particularly when caregivers experience profound distress. Supportive interventions may help prevent mental and physical illness in the caregiver. General practice plays a key role b…
View article: Mental healthcare utilisation among Danish formerly deployed military personnel and their civilian counterparts: a cohort study
Mental healthcare utilisation among Danish formerly deployed military personnel and their civilian counterparts: a cohort study Open
Background: Prior studies comparing the mental healthcare utilisation (MHU) of Danish formerly deployed military personnel (FDP) with the general population have not included data on psychotherapy through the Defence or talking ther…
View article: Managing mental health in chronic care in general practice: a feasibility study of the Healthy Mind intervention
Managing mental health in chronic care in general practice: a feasibility study of the Healthy Mind intervention Open
The Healthy Mind intervention was found to be feasible, and the results support proceeding to a full-scale evaluation trial.
View article: The Brief Health Literacy Scale for Adults: Adaptation and Validation of the Health Literacy for School-Aged Children Questionnaire
The Brief Health Literacy Scale for Adults: Adaptation and Validation of the Health Literacy for School-Aged Children Questionnaire Open
The Health Literacy for School-Aged Children (HLSAC) is a brief, generic instrument measuring health literacy among school-aged children. Given its brevity and broad conceptualization of health literacy, the HLSAC is a potentially valuable…
View article: The dimensionality of the Perceived Stress Scale: The presence of opposing items is a source of measurement error
The dimensionality of the Perceived Stress Scale: The presence of opposing items is a source of measurement error Open
The PSS was deemed essentially unidimensional, with the extra variance being attributed to the reversed items. To reduce response bias, clinicians and researchers may apply the mPSS.
View article: Clinimetric properties of the 21-item Depression, Anxiety and Stress Scales (DASS-21)
Clinimetric properties of the 21-item Depression, Anxiety and Stress Scales (DASS-21) Open
Background: The Depression, Anxiety and Stress Scale-21 (DASS-21) is a widely used patient-reported outcome measure. While psychometric properties of the DASS-21 have been studied, insufficient attention has been devoted to the assessment …
View article: Do sociodemographic and clinical factors affect the selection of initial antidepressant treatment for depression in older adults? Results from a nationwide descriptive study in Denmark
Do sociodemographic and clinical factors affect the selection of initial antidepressant treatment for depression in older adults? Results from a nationwide descriptive study in Denmark Open
View article: Variation in Psychometric Testing in General Practice – A Nationwide Cohort Study
Variation in Psychometric Testing in General Practice – A Nationwide Cohort Study Open
Psychometric tests were used mostly for women, individuals with a low socioeconomic status, and individuals with comorbid conditions. The use of psychometric tests depends on general practice and is associated with talk therapy, redemption…
View article: Antidepressant treatment initiation and public sick-leave compensation in the following year: a register-based prospective cohort study in Denmark
Antidepressant treatment initiation and public sick-leave compensation in the following year: a register-based prospective cohort study in Denmark Open
Antidepressant treatment initiation was associated with PLSC. The highest risk of PLSC was seen for antidepressants with sedative side effects. Some types of antidepressants were associated with a lower risk of PLSC in the year following t…
View article: The concept of psychological distress and its assessment: A clinimetric analysis of the SCL-90-R.
The concept of psychological distress and its assessment: A clinimetric analysis of the SCL-90-R. Open
Many studies have been conducted on psychological distress but the question of how to conceptualize and assess this phenomenon still remains a controversial issue. Clinimetrics, the science of clinical measurements, may pave the ground for…
View article: Treatment indications and potential off‐label use of antidepressants among older adults: A population‐based descriptive study in Denmark
Treatment indications and potential off‐label use of antidepressants among older adults: A population‐based descriptive study in Denmark Open
Objectives Off‐label prescriptions of antidepressants may be of special concern in older‐adults. We aimed to study the potential off‐label use of antidepressants among adults ≥65 years by describing the patterns, trends, and factors associ…
View article: Cancer risk in persons with new-onset anaemia: a population-based cohort study in Denmark
Cancer risk in persons with new-onset anaemia: a population-based cohort study in Denmark Open
View article: Cross-cultural validity of the WHO-5 Well-Being Index and Euthymia Scale: A clinimetric analysis
Cross-cultural validity of the WHO-5 Well-Being Index and Euthymia Scale: A clinimetric analysis Open