TY - JOUR
T1 - Incidence rates and employment trends in schizophrenia spectrum disorders, bipolar affective disorders and recurrent depression in the years 2000-2013: a Danish nationwide register-based study
AU - Christensen, Thomas Nordahl
AU - Wallstrøm, Iben Gammelgård
AU - Eplov, Lene Falgaard
AU - Laursen, Thomas Munk
AU - Nordentoft, Merete
PY - 2022
Y1 - 2022
N2 - AIMS: The study aimed to investigate time trends in incidence rates in schizophrenic spectrum disorders (ICD-10: F20-F29), bipolar affective disorder (ICD-10: F30, F31), and recurrent depression (ICD-10: F33) and to investigate the rates of employment for all incident cases.METHOD: We used nationwide longitudinal data from 2000 to 2013 on all psychiatric inpatients and outpatients contacts in Denmark. Age-adjusted incidence rate ratios were calculated for the three diagnostic groups, and rates of employment, education, and disability pension were measured 1 year before and 2 years after the diagnosis for all the incident cases.RESULTS: The incidence rates increased significantly in all diagnostic groups and both sexes. Comparing the incidence rates in 2013 with 2000 yielded an incidence rate ratio of 1.67 (95% CI 1.51-1.84) for schizophrenic spectrum disorders, 3.82 (95% CI 3.23-4.52) for bipolar affective disorder, and 2.80 (95% CI 2.58-3.04) for recurrent depression. During the same observation period, the employment rates decreased, both 1 year before and 2 years after diagnosis in all three subgroups. In the year 2002, employment rates, 2 years after diagnosis, were 24.6% for schizophrenia spectrum disorder, 35.0% for bipolar affective disorder and 47.1% for recurrent depression. These rates had declined to 15.8%, 26.8%, and 34.7%, respectively, in 2013.CONCLUSION: This study of three severe mental illness subgroups shows significant increasing incidence rates and decreasing employment rates both before and after the diagnosis between 2000 and 2013, highlighting the importance of timely and correct volume of the psychiatric treatment and vocational rehabilitation programs.
AB - AIMS: The study aimed to investigate time trends in incidence rates in schizophrenic spectrum disorders (ICD-10: F20-F29), bipolar affective disorder (ICD-10: F30, F31), and recurrent depression (ICD-10: F33) and to investigate the rates of employment for all incident cases.METHOD: We used nationwide longitudinal data from 2000 to 2013 on all psychiatric inpatients and outpatients contacts in Denmark. Age-adjusted incidence rate ratios were calculated for the three diagnostic groups, and rates of employment, education, and disability pension were measured 1 year before and 2 years after the diagnosis for all the incident cases.RESULTS: The incidence rates increased significantly in all diagnostic groups and both sexes. Comparing the incidence rates in 2013 with 2000 yielded an incidence rate ratio of 1.67 (95% CI 1.51-1.84) for schizophrenic spectrum disorders, 3.82 (95% CI 3.23-4.52) for bipolar affective disorder, and 2.80 (95% CI 2.58-3.04) for recurrent depression. During the same observation period, the employment rates decreased, both 1 year before and 2 years after diagnosis in all three subgroups. In the year 2002, employment rates, 2 years after diagnosis, were 24.6% for schizophrenia spectrum disorder, 35.0% for bipolar affective disorder and 47.1% for recurrent depression. These rates had declined to 15.8%, 26.8%, and 34.7%, respectively, in 2013.CONCLUSION: This study of three severe mental illness subgroups shows significant increasing incidence rates and decreasing employment rates both before and after the diagnosis between 2000 and 2013, highlighting the importance of timely and correct volume of the psychiatric treatment and vocational rehabilitation programs.
KW - Health Sciences
KW - Recovery
UR - http://www.scopus.com/inward/record.url?scp=85111923711&partnerID=8YFLogxK
U2 - 10.1080/08039488.2021.1952304
DO - 10.1080/08039488.2021.1952304
M3 - Journal article
C2 - 34339349
SN - 0803-9488
VL - 76
SP - 225
EP - 232
JO - Nordic Journal of Psychiatry
JF - Nordic Journal of Psychiatry
IS - 3
ER -