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Age and Sex Specific Trends in Incidence of Juvenile Idiopathic Arthritis in Danish Birth Cohorts from 1992 to 2002: A Nationwide Register Linkage Study

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@article{018b494d51ad48b287a0fa901596dfcd,
title = "Age and Sex Specific Trends in Incidence of Juvenile Idiopathic Arthritis in Danish Birth Cohorts from 1992 to 2002: A Nationwide Register Linkage Study",
abstract = "This study reports age- and sex-specific incidence rates of juvenile idiopathic arthritis (JIA) in complete Danish birth cohorts from 1992 through 2002. Data were obtained from the Danish registries. All persons born in Denmark, from 1992-2002, were followed from birth and until either the date of first diagnosis recording, death, emigration, 16th birthday or administrative censoring (17 May 2017), whichever came first. The number of incident JIA cases and its incidence rate (per 100,000 person-years) were calculated within sex and age group for each of the birth cohorts. A multiplicative Poisson regression model was used to analyze the variation in the incidence rates by age and year of birth for boys and girls separately. The overall incidence of JIA was 24.1 (23.6-24.5) per 100,000 person-years. The rate per 100,000 person-years was higher among girls (29.9 (29.2-30.7)) than among boys (18.5 (18.0-19.1)). There were no evident peaks for any age group at diagnosis for boys but for girls two small peaks appeared at ages 0-5 years and 12-15 years. This study showed that the incidence rates of JIA in Denmark were higher for girls than for boys and remained stable over the observed period for both sexes.",
keywords = "Arthritis, Juvenile/epidemiology, Child, Preschool, Denmark/epidemiology, Emigration and Immigration, Female, Humans, Incidence, Infant, Infant, Newborn, Male, Registries, Epidemiology, Juvenile idiopathic arthritis, Denmark",
author = "Isabel Cardoso and Peder Frederiksen and Specht, {Ina Olmer} and H{\"a}ndel, {Mina Nicole} and Fanney Thorsteinsdottir and Heitmann, {Berit Lilienthal} and Kristensen, {Lars Erik}",
year = "2021",
month = aug,
day = "6",
doi = "10.3390/ijerph18168331",
language = "English",
volume = "18",
journal = "International Journal of Environmental Research and Public Health",
issn = "1661-7827",
publisher = "MDPI AG",
number = "16",

}

RIS

TY - JOUR

T1 - Age and Sex Specific Trends in Incidence of Juvenile Idiopathic Arthritis in Danish Birth Cohorts from 1992 to 2002

T2 - A Nationwide Register Linkage Study

AU - Cardoso, Isabel

AU - Frederiksen, Peder

AU - Specht, Ina Olmer

AU - Händel, Mina Nicole

AU - Thorsteinsdottir, Fanney

AU - Heitmann, Berit Lilienthal

AU - Kristensen, Lars Erik

PY - 2021/8/6

Y1 - 2021/8/6

N2 - This study reports age- and sex-specific incidence rates of juvenile idiopathic arthritis (JIA) in complete Danish birth cohorts from 1992 through 2002. Data were obtained from the Danish registries. All persons born in Denmark, from 1992-2002, were followed from birth and until either the date of first diagnosis recording, death, emigration, 16th birthday or administrative censoring (17 May 2017), whichever came first. The number of incident JIA cases and its incidence rate (per 100,000 person-years) were calculated within sex and age group for each of the birth cohorts. A multiplicative Poisson regression model was used to analyze the variation in the incidence rates by age and year of birth for boys and girls separately. The overall incidence of JIA was 24.1 (23.6-24.5) per 100,000 person-years. The rate per 100,000 person-years was higher among girls (29.9 (29.2-30.7)) than among boys (18.5 (18.0-19.1)). There were no evident peaks for any age group at diagnosis for boys but for girls two small peaks appeared at ages 0-5 years and 12-15 years. This study showed that the incidence rates of JIA in Denmark were higher for girls than for boys and remained stable over the observed period for both sexes.

AB - This study reports age- and sex-specific incidence rates of juvenile idiopathic arthritis (JIA) in complete Danish birth cohorts from 1992 through 2002. Data were obtained from the Danish registries. All persons born in Denmark, from 1992-2002, were followed from birth and until either the date of first diagnosis recording, death, emigration, 16th birthday or administrative censoring (17 May 2017), whichever came first. The number of incident JIA cases and its incidence rate (per 100,000 person-years) were calculated within sex and age group for each of the birth cohorts. A multiplicative Poisson regression model was used to analyze the variation in the incidence rates by age and year of birth for boys and girls separately. The overall incidence of JIA was 24.1 (23.6-24.5) per 100,000 person-years. The rate per 100,000 person-years was higher among girls (29.9 (29.2-30.7)) than among boys (18.5 (18.0-19.1)). There were no evident peaks for any age group at diagnosis for boys but for girls two small peaks appeared at ages 0-5 years and 12-15 years. This study showed that the incidence rates of JIA in Denmark were higher for girls than for boys and remained stable over the observed period for both sexes.

KW - Arthritis, Juvenile/epidemiology

KW - Child, Preschool

KW - Denmark/epidemiology

KW - Emigration and Immigration

KW - Female

KW - Humans

KW - Incidence

KW - Infant

KW - Infant, Newborn

KW - Male

KW - Registries

KW - Epidemiology

KW - Juvenile idiopathic arthritis

KW - Denmark

UR - http://www.scopus.com/inward/record.url?scp=85112129719&partnerID=8YFLogxK

U2 - 10.3390/ijerph18168331

DO - 10.3390/ijerph18168331

M3 - Journal article

C2 - 34444082

VL - 18

JO - International Journal of Environmental Research and Public Health

JF - International Journal of Environmental Research and Public Health

SN - 1661-7827

IS - 16

M1 - 8331

ER -

ID: 67548698