Practice characteristics influencing variation in provision of depression care in general practice in Norway; a registry-based cohort study (The Norwegian GP-DEP study).

BACKGROUND: There is growing evidence of variation in treatment for patients with depression, not only across patient characteristics, but also with respect to the organizational and structural framework of general practitioners' (GPs') practice. However, the reasons for these variations are sparsely examined. This study aimed to investigate associations of practice characteristics with provision of depression care in general practices in Norway. METHODS: A nationwide cohort study of residents aged ≥ 18 years with a new depression episode in general practice during 2009-2015, based on linked registry data. Exposures were characteristics of GP practice: geographical location, practice list size, and duration of GP-patient relationship. Outcomes were talking therapy, antidepressant medication and sick listing provided by GP during 12 months from date of diagnosis. Associations between exposure and outcome were estimated using generalized linear models, adjusted for patients' age, gender, education and immigrant status, and characteristics of GP practice. RESULTS: The study population comprised 285 113 patients, mean age 43.5 years, 61.6% women. They were registered with 5 574 GPs. Of the patients, 52.5% received talking therapy, 34.1% antidepressant drugs and 54.1% were sick listed, while 17.3% received none of the above treatments. Patients in rural practices were less likely to receive talking therapy (adjusted relative risk (adj RR) = 0.68; 95% confidence interval (CI) = 0.64-0.73) and more likely to receive antidepressants (adj RR = 1.09; 95% CI = 1.04-1.14) compared to those in urban practices. Patients on short practice lists were more likely to receive medication (adj RR = 1.08; 95% CI = 1.05-1.12) than those on long practice lists. Patients with short GP-patient relationship were more likely to receive talking therapy (adj RR = 1.20; 95% CI = 1.17-1.23) and medication (adj RR = 1.08; 95% CI = 1.04-1.12), and less likely to be sick-listed (RR = 0.88; 95% CI = 0.87-0.89), than patients with long GP-patient relationship. CONCLUSIONS: Provision of GP depression care varied with practice characteristics. Talking therapy was less commonly provided in rural practices and among those with long-lasting GP-patient relationship. These differences may indicate some variation, and therefore, its reasons and clinical consequences need further investigation.

Trends in treatment for patients with depression in general practice in Norway, 2009-2015: nationwide registry-based cohort study (The Norwegian GP-DEP Study).

BACKGROUND: Depression is highly prevalent, but knowledge is scarce as to whether increased public awareness and strengthened government focus on mental health have changed how general practitioners (GPs) help their depressed patients. This study aimed to examine national time trends in GP depression care and whether trends varied regarding patient gender, age, and comorbidity. METHODS: Nationwide registry-based cohort study, Norway. The study population comprised all residents aged 20 years or older with new depression diagnoses recorded in general practice, 2009-2015. We linked reimbursement claims data from all consultations in general practice for depression with information on demographics and antidepressant medication. The outcome was type(s) of GP depression care during 12 months from the date of diagnosis: (long) consultation, talking therapy, antidepressant drug treatment, sickness absence certification, and referral to secondary mental health care. Covariates were patient gender, age, and comorbidity. The data are presented as frequencies and tested with generalized linear models. RESULTS: We included 365,947 new depression diagnoses. Mean patient age was 44 years (SD = 16), 61.9 % were women, 41.2 % had comorbidity. From 2009 to 2015, proportions of patients receiving talking therapy (42.3-63.4 %), long consultations (56.4-71.8 %), and referral to secondary care (16.6-21.6 %) increased, while those receiving drug treatment (31.3-25.9 %) and sick-listing (58.1-50 %) decreased. The trends were different for gender (women had a greater increase in talking therapy and a smaller decrease in sick-listing, compared to men), age (working-aged patients had a smaller increase in talking therapy, a greater increase in long consultations, and a smaller decrease in antidepressant drug use, compared to older patients) and comorbidity (patients with mental comorbidity had a smaller increase in talking therapy and a greater increase in long consultations, compared to those with no comorbidity and somatic comorbidity). CONCLUSIONS: The observed time trends in GP depression care towards increased provision of psychological treatment and less drug treatment and sick-listing were in the desired direction according to Norwegian health care policy. However, the large and persistent differences in treatment rates between working-aged and older patients needs further investigation.

Variation in general practitioners' depression care following certification of sickness absence: a registry-based cohort study.

BACKGROUND: Depression is more prevalent among women and people with low socio-economic status. Uncertainties exist about how general practitioner (GP) depression care varies with patients' social position. OBJECTIVE: To investigate associations between patients' gender and educational status combined and GP depression care following certification of sickness absence. METHODS: Nationwide registry-based cohort study, Norway, 2012-14. Reimbursement claims data from all consultations in general practice for depression were linked with information on socio-demographic data, social security benefits and depression medication. The study population comprised all individuals aged 25-66 years with taxable income, sick-listed with a new depression diagnosis in general practice in 2013 (n = 8857). We defined six intersectional groups by combining educational level and gender. The outcome was type of GP depression care during sick leave: follow-up consultation(s), talking therapy, medication and referral to secondary care. Associations between intersectional groups and outcome were estimated using generalized linear models. RESULTS: Among long-term absentees (17 days or more), highly educated women were less likely to receive medication compared to all other patient groups [relative risk (RR) ranging from 1.17 (95% confidence interval 1.03-1.33) to 1.49 (1.29-1.72)] and more likely to receive talking therapy than women with medium [RR = 0.90 (0.84-0.98)] or low [RR = 0.91 (0.85-0.98)] education. CONCLUSIONS: Our findings suggest that GPs provide equitable depression care regarding consultations and referrals for all intersectional groups but differential drug treatment and talking therapy for highly educated women. GPs need to be aware of these variations to provide personalized care and to prevent reproducing inequity.