Complement C3 and High Risk of Venous Thromboembolism: 80517 Individuals from the Copenhagen General Population Study

Ina Nørgaard; Sune Fallgaard Nielsen; Børge Grønne Nordestgaard

doi:10.1373/clinchem.2015.251314

Complement C3 and High Risk of Venous Thromboembolism: 80517 Individuals from the Copenhagen General Population Study

Ina Nørgaard, Sune Fallgaard Nielsen, Børge Grønne Nordestgaard

Institut for Klinisk Medicin

17 Citationer (Scopus)

Abstract

BACKGROUND: Complement activation may contribute to venous thromboembolism, including deep venous thrombosis and pulmonary embolism. We tested the hypothesis that high complement C3 concentrations are associated with high risk of venous thromboembolism in the general population.

METHODS: We included 80 517 individuals without venous thromboembolism from the Copenhagen General Population Study recruited in 2003-2012. Plasma complement C3 concentrations were measured at baseline, and venous thromboembolism (n = 1176) was ascertained through April 2013 in nationwide registries. No individuals were lost to follow-up.

RESULTS: Complement C3 concentrations were approximately normally distributed, with a mean value of 1.13 g/L (interquartile range 0.98-1.26; SD 0.21). The cumulative incidence of venous thromboembolism was higher with progressively higher tertiles of complement C3 (log-rank trend: P = 3 × 10(-8)): at age 80, 7%, 9%, and 11% of individuals in the first, second, and third tertiles, respectively, had developed venous thromboembolism. Multivariable-adjusted hazard ratios for venous thromboembolism compared with individuals in the first tertile were 1.36 (95% CI, 1.16-1.59) for those in the second tertile and 1.58 (1.33-1.88) for those in the third tertile. Corresponding values were 1.36 (1.16-1.60) and 1.57 (1.33-1.87) after additional adjustment for C-reactive protein and 1.27 (1.09-1.49) and 1.31(1.10-1.57) after additional adjustment for body mass index. These results were similar for deep venous thrombosis and pulmonary embolism separately. The multivariable-adjusted hazard ratio for venous thromboembolism for a 1-g/L increase in complement C3 was 2.43 (1.74-3.40).

CONCLUSIONS: High concentrations of complement C3 were associated with high risk of venous thromboembolism in the general population.

Originalsprog	Engelsk
Tidsskrift	Clinical Chemistry
Vol/bind	62
Udgave nummer	3
Sider (fra-til)	525-534
Antal sider	10
ISSN	0009-9147
DOI	https://doi.org/10.1373/clinchem.2015.251314
Status	Udgivet - mar. 2016

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10.1373/clinchem.2015.251314

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Citationsformater

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title = "Complement C3 and High Risk of Venous Thromboembolism: 80517 Individuals from the Copenhagen General Population Study",

abstract = "BACKGROUND: Complement activation may contribute to venous thromboembolism, including deep venous thrombosis and pulmonary embolism. We tested the hypothesis that high complement C3 concentrations are associated with high risk of venous thromboembolism in the general population.METHODS: We included 80 517 individuals without venous thromboembolism from the Copenhagen General Population Study recruited in 2003-2012. Plasma complement C3 concentrations were measured at baseline, and venous thromboembolism (n = 1176) was ascertained through April 2013 in nationwide registries. No individuals were lost to follow-up.RESULTS: Complement C3 concentrations were approximately normally distributed, with a mean value of 1.13 g/L (interquartile range 0.98-1.26; SD 0.21). The cumulative incidence of venous thromboembolism was higher with progressively higher tertiles of complement C3 (log-rank trend: P = 3 × 10(-8)): at age 80, 7%, 9%, and 11% of individuals in the first, second, and third tertiles, respectively, had developed venous thromboembolism. Multivariable-adjusted hazard ratios for venous thromboembolism compared with individuals in the first tertile were 1.36 (95% CI, 1.16-1.59) for those in the second tertile and 1.58 (1.33-1.88) for those in the third tertile. Corresponding values were 1.36 (1.16-1.60) and 1.57 (1.33-1.87) after additional adjustment for C-reactive protein and 1.27 (1.09-1.49) and 1.31(1.10-1.57) after additional adjustment for body mass index. These results were similar for deep venous thrombosis and pulmonary embolism separately. The multivariable-adjusted hazard ratio for venous thromboembolism for a 1-g/L increase in complement C3 was 2.43 (1.74-3.40).CONCLUSIONS: High concentrations of complement C3 were associated with high risk of venous thromboembolism in the general population.",

keywords = "Adult, Aged, Aged, 80 and over, Blood Grouping and Crossmatching, Complement C3, Denmark, Female, Follow-Up Studies, Humans, Male, Middle Aged, Prospective Studies, Risk Factors, Venous Thromboembolism, Journal Article, Research Support, Non-U.S. Gov't",

author = "Ina N{\o}rgaard and Nielsen, {Sune Fallgaard} and Nordestgaard, {B{\o}rge Gr{\o}nne}",

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doi = "10.1373/clinchem.2015.251314",

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T1 - Complement C3 and High Risk of Venous Thromboembolism

T2 - 80517 Individuals from the Copenhagen General Population Study

AU - Nørgaard, Ina

AU - Nielsen, Sune Fallgaard

AU - Nordestgaard, Børge Grønne

PY - 2016/3

Y1 - 2016/3

N2 - BACKGROUND: Complement activation may contribute to venous thromboembolism, including deep venous thrombosis and pulmonary embolism. We tested the hypothesis that high complement C3 concentrations are associated with high risk of venous thromboembolism in the general population.METHODS: We included 80 517 individuals without venous thromboembolism from the Copenhagen General Population Study recruited in 2003-2012. Plasma complement C3 concentrations were measured at baseline, and venous thromboembolism (n = 1176) was ascertained through April 2013 in nationwide registries. No individuals were lost to follow-up.RESULTS: Complement C3 concentrations were approximately normally distributed, with a mean value of 1.13 g/L (interquartile range 0.98-1.26; SD 0.21). The cumulative incidence of venous thromboembolism was higher with progressively higher tertiles of complement C3 (log-rank trend: P = 3 × 10(-8)): at age 80, 7%, 9%, and 11% of individuals in the first, second, and third tertiles, respectively, had developed venous thromboembolism. Multivariable-adjusted hazard ratios for venous thromboembolism compared with individuals in the first tertile were 1.36 (95% CI, 1.16-1.59) for those in the second tertile and 1.58 (1.33-1.88) for those in the third tertile. Corresponding values were 1.36 (1.16-1.60) and 1.57 (1.33-1.87) after additional adjustment for C-reactive protein and 1.27 (1.09-1.49) and 1.31(1.10-1.57) after additional adjustment for body mass index. These results were similar for deep venous thrombosis and pulmonary embolism separately. The multivariable-adjusted hazard ratio for venous thromboembolism for a 1-g/L increase in complement C3 was 2.43 (1.74-3.40).CONCLUSIONS: High concentrations of complement C3 were associated with high risk of venous thromboembolism in the general population.

AB - BACKGROUND: Complement activation may contribute to venous thromboembolism, including deep venous thrombosis and pulmonary embolism. We tested the hypothesis that high complement C3 concentrations are associated with high risk of venous thromboembolism in the general population.METHODS: We included 80 517 individuals without venous thromboembolism from the Copenhagen General Population Study recruited in 2003-2012. Plasma complement C3 concentrations were measured at baseline, and venous thromboembolism (n = 1176) was ascertained through April 2013 in nationwide registries. No individuals were lost to follow-up.RESULTS: Complement C3 concentrations were approximately normally distributed, with a mean value of 1.13 g/L (interquartile range 0.98-1.26; SD 0.21). The cumulative incidence of venous thromboembolism was higher with progressively higher tertiles of complement C3 (log-rank trend: P = 3 × 10(-8)): at age 80, 7%, 9%, and 11% of individuals in the first, second, and third tertiles, respectively, had developed venous thromboembolism. Multivariable-adjusted hazard ratios for venous thromboembolism compared with individuals in the first tertile were 1.36 (95% CI, 1.16-1.59) for those in the second tertile and 1.58 (1.33-1.88) for those in the third tertile. Corresponding values were 1.36 (1.16-1.60) and 1.57 (1.33-1.87) after additional adjustment for C-reactive protein and 1.27 (1.09-1.49) and 1.31(1.10-1.57) after additional adjustment for body mass index. These results were similar for deep venous thrombosis and pulmonary embolism separately. The multivariable-adjusted hazard ratio for venous thromboembolism for a 1-g/L increase in complement C3 was 2.43 (1.74-3.40).CONCLUSIONS: High concentrations of complement C3 were associated with high risk of venous thromboembolism in the general population.

KW - Adult

KW - Aged

KW - Aged, 80 and over

KW - Blood Grouping and Crossmatching

KW - Complement C3

KW - Denmark

KW - Female

KW - Follow-Up Studies

KW - Humans

KW - Male

KW - Middle Aged

KW - Prospective Studies

KW - Risk Factors

KW - Venous Thromboembolism

KW - Journal Article

KW - Research Support, Non-U.S. Gov't

U2 - 10.1373/clinchem.2015.251314

DO - 10.1373/clinchem.2015.251314

M3 - Journal article

C2 - 26797686

SN - 0009-9147

VL - 62

SP - 525

EP - 534

JO - Clinical Chemistry

JF - Clinical Chemistry

IS - 3

ER -

Complement C3 and High Risk of Venous Thromboembolism: 80517 Individuals from the Copenhagen General Population Study

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