scholarly journals Trends of venous thromboembolism risk before and after diagnosis of gout: a general population-based study

Rheumatology ◽  
2019 ◽  
Vol 59 (5) ◽  
pp. 1099-1107 ◽  
Author(s):  
Lingyi Li ◽  
Natalie McCormick ◽  
Eric C Sayre ◽  
John M Esdaile ◽  
Diane Lacaille ◽  
...  
Keyword(s):  
Venous Thromboembolism ◽  
General Population ◽  
Population Based ◽  
Incidence Rates ◽  
Vein Thrombosis ◽  
Hazard Ratios ◽  
Thrombosis Risk ◽  
Before And After ◽  
Health Database ◽  
Deep Vein

Abstract Objective To estimate the overall risk and the temporal trend of venous thromboembolism (VTE), deep vein thrombosis (DVT), and pulmonary embolism (PE) before and after gout diagnosis in an incident gout cohort compared with the general population. Methods We conducted a matched cohort study using a province-wide population-based administrative health database in Canada. We calculated incidence rates (IRs) and multivariable adjusted hazard ratios (HRs) for the risk of VTE, DVT and PE before and after gout diagnosis. Results Among 130 708 incident individuals with gout (64% male, mean age 59 years), 2071 developed VTE, 1377 developed DVT and 1012 developed PE. IRs per 1000 person-years for gout were 2.63, 1.74 and 1.28 compared with 2.03, 1.28 and 1.06 for non-gout, respectively. The fully adjusted HRs (95% CI) for VTE, DVT and PE were 1.22 (1.13, 1.32), 1.28 (1.17, 1.41) and 1.16 (1.05, 1.29). For the pre-gout period, the fully adjusted HRs (95% CI) were 1.51 (1.38, 1.64), 1.55 (1.40, 1.72) and 1.47 (1.31, 1.66) for VTE, DVT and PE. During the third, second and first years preceding gout, the fully adjusted HRs for VTE were 1.44, 1.56 and 1.62. During the first, second, third, fourth and fifth years after gout, the fully adjusted HRs were 1.63, 1.29, 1.33, 1.28 and 1.22. Similar trends were also seen for DVT and PE. Conclusion Increased risks of VTE, DVT and PE were found both before and after gout diagnosis. The risk increased gradually before gout, peaking in the year prior to diagnosis, and then progressively declined. Gout-associated inflammation may contribute to venous thrombosis risk.

Incidence Rates of Myomectomy-Related Mortality and Venous Thromboembolism in South Korea: A Population-Based Study

2021 ◽  
Author(s):  
Jin-Sung Yuk ◽  
Myounghwan Kim
Keyword(s):  
Venous Thromboembolism ◽  
Mortality Rate ◽  
Population Based ◽  
Incidence Rates ◽  
Population Based Study ◽  
Vein Thrombosis ◽  
Diagnostic Codes ◽  
The Republic ◽  
Procedure Codes ◽  
Deep Vein

Abstract Purpose Uterine leiomyomas are the most commonly observed pathologies, with an estimated prevalence of 4.5–68.6%. We aimed to calculate the post-myomectomy mortality rates in the Republic of Korea. Methods The data of patients who underwent myomectomy (2009–2018) were obtained from the Health Insurance Review and Assessment Service-National Inpatient Sample. The mortality rate after myomectomy was calculated using the leiomyoma diagnostic codes and myomectomy procedure codes. Results The data of 23,549 women who underwent myomectomy among 3,307,214 women aged 15–55 years were extracted. The rate of myomectomy was 14.6 ± 0.1 per 10,000 patients. The average age was 39.39 ± 0.04 years. One patient who underwent myomectomy died; this patient did not have concomitant venous thromboembolism (VTE). The post-myomectomy mortality rate was 1.3 ± 0.8 per 10,000 patients. The incidence rates of VTE, deep vein thrombosis, and pulmonary embolism after myomectomy were 5.7 ± 1.6 per 10,000 patients, 4.4 ± 1.4 per 10,000 patients, and 2.5 ± 1 per 10,000 patients, respectively. The conversion rate to hysterectomy was 2.9 ± 1.1 per 10,000 patients. Conclusion The current mortality rate after myomectomy (0.013%) is substantially lower than that described in previous studies at the turn of the 20th century.

The risk of pulmonary embolism and deep vein thrombosis in rheumatoid arthritis: a UK population-based outpatient cohort study

2012 ◽  
Vol 72 (7) ◽  
pp. 1182-1187 ◽  
Author(s):  
Hyon K Choi ◽  
Young-Hee Rho ◽  
Yanyan Zhu ◽  
Lucia Cea-Soriano ◽  
Juan Antonio Aviña-Zubieta ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Pulmonary Embolism ◽  
Cohort Study ◽  
Deep Vein Thrombosis ◽  
General Population ◽  
Population Based ◽  
Incidence Rates ◽  
Vein Thrombosis ◽  
Increased Risk ◽  
Deep Vein

BackgroundRecent hospital-based studies have suggested a sixfold increased risk of pulmonary embolism (PE) in rheumatoid arthritis (RA) in the year following admission. We evaluated the risk of PE and deep vein thrombosis (DVT) and associated time trend among RA patients (84.5% without a history of hospitalisation during the past year) derived from the general population.MethodsWe conducted a cohort study using an electronic medical records database representative of the UK general population, collected from 1986 to 2010. Primary definitions of the RA cohort (exposure) and PE/DVT outcomes required physician diagnoses followed by corresponding treatments. We estimated relative risks (RRs) of PE and DVT compared with a matched non-RA comparison cohort, adjusting for age, sex, smoking, body mass index, comorbidities and hospitalisations.ResultsAmong 9589 individuals with RA (69% female, mean age of 58 years), 82 developed PE and 110 developed DVT (incidence rates, 1.5 and 2.1 per 1000 person-years). Compared with non-RA individuals (N=95 776), the age-, sex- and entry-time-matched RRs were 2.23 (95% CI 1.75 to 2.86) for PE and 2.20 (CI 1.78 to 2.71) for DVT. Adjusting for other covariates, the corresponding RRs were 2.16 (CI 1.68 to 2.79) and 2.16 (CI 1.74 to 2.69). The time-specific RRs for PE were 3.27, 1.88 and 2.35 for follow-up times of <1 year, 1–4.9 years, and ≥5 years, and corresponding RRs for DVT were 3.16, 1.82 and 2.32.ConclusionsThis population-based study indicates an increased risk of PE and DVT in RA, supporting increased monitoring of venous-thromboembolic complications and risk factors in RA, regardless of hospitalisation.

Atrial fibrillation associated with increased risk of venous thromboembolism

2015 ◽  
Vol 113 (01) ◽  
pp. 185-192 ◽  
Author(s):  
Chun-Cheng Wang ◽  
Cheng-Li Lin ◽  
Guei-Jane Wang ◽  
Chiz-Tzung Chang ◽  
Fung-Chang Sung ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Venous Thromboembolism ◽  
Incidence Rates ◽  
Vein Thrombosis ◽  
Kaplan Meier ◽  
Increased Risk ◽  
Long Term Follow Up ◽  
Deep Vein

SummaryWhether atrial fibrillation (AF) is associated with an increased risk of venous thromboembolism (VTE) remains controversial. From Longitudinal Health Insurance Database 2000 (LHID2000), we identified 11,458 patients newly diagnosed with AF. The comparison group comprised 45,637 patients without AF. Both cohorts were followed up to measure the incidence of deep-vein thrombosis (DVT) and pulmonary embolism (PE). Univariable and multivariable competing-risks regression model and Kaplan-Meier analyses with the use of Aelon-Johansen estimator were used to measure the differences of cumulative incidences of DVT and PE, respectively. The overall incidence rates (per 1,000 person-years) of DVT and PE between the AF group and non-AF groups were 2.69 vs 1.12 (crude hazard ratio [HR] = 1.92; 95 % confidence interval [CI] = 1.54-2.39), 1.55 vs 0.46 (crude HR = 2.68; 95 % CI = 1.97-3.64), respectively. The baseline demographics indicated that the members of the AF group demonstrated a significantly older age and higher proportions of comorbidities than non-AF group. After adjusting for age, sex, and comorbidities, the risks of DVT and PE remained significantly elevated in the AF group compared with the non-AF group (adjusted HR = 1.74; 95 %CI = 1.36-2.24, adjusted HR = 2.18; 95 %CI = 1.51-3.15, respectively). The Kaplan-Meier curve with the use of Aelon-Johansen estimator indicated that the cumulative incidences of DVT and PE were both more significantly elevated in the AF group than in the non-AF group after a long-term follow-up period (p<0.01). In conclusion, the presence of AF is associated with increased risk of VTE after a long-term follow-up period.

Subgroup Analysis of Patients with Cancer in Xalia - a Non-Interventional Study of Rivaroxaban in Routine Treatment of Deep Vein Thrombosis

Blood ◽  
2016 ◽  
Vol 128 (22) ◽  
pp. 1438-1438 ◽  
Author(s):  
Alexander G G Turpie ◽  
Lorenzo G Mantovani ◽  
Sylvia Haas ◽  
Reinhold Kreutz ◽  
Danja Monje ◽  
...  
Keyword(s):  
Deep Vein Thrombosis ◽  
Venous Thromboembolism ◽  
Major Bleeding ◽  
Research Funding ◽  
Incidence Rates ◽  
Vein Thrombosis ◽  
All Cause Mortality ◽  
Recurrent Vte ◽  
Deep Vein ◽  
Active Cancer

Abstract Background: XALIA is a prospective, non-interventional study of rivaroxaban in the treatment of acute deep vein thrombosis. The overall XALIA results showed that rivaroxaban was associated with similarly low rates of major bleeding and symptomatic recurrent venous thromboembolism (VTE) as standard anticoagulation. A subset of patients in XALIA had active cancer at the time of enrolment into the study. Purpose: To describe the demographics, clinical characteristics, treatment strategies and outcomes of patients in XALIA with cancer and VTE. The primary outcomes were major bleeding, recurrent VTE and all-cause mortality. Methods: Patients with deep vein thrombosis with or without concomitant pulmonary embolism aged ≥18 years who had active cancer and were scheduled to receive ≥3 months of anticoagulation with rivaroxaban or standard therapy were eligible. Therapy type, dose and duration were at the physician's discretion. For the purpose of this substudy, we defined the following treatment cohorts: rivaroxaban cohort (patients treated with rivaroxaban alone or who received heparin/fondaparinux for ≤48 hours before switching to rivaroxaban); early switchers cohort (patients treated with rivaroxaban who received heparin/fondaparinux for >48 hours-14 days and/or a vitamin K antagonist [VKA] for 1-14 days before changing to rivaroxaban); standard anticoagulation cohort (patients treated with heparin/fondaparinux and a VKA or a VKA only); and heparin/fondaparinux cohort (patients treated with heparin/fondaparinux alone). Results: Of 5136 patients in XALIA who received study medication, 587 (11.4%) had active cancer at baseline. Of these, 146 (24.9%) received rivaroxaban, 30 (5.1%) were early switchers, 167 (28.4%) received standard anticoagulation (of which 26 [4.4%] received a VKA only) and 244 (41.6%) received heparin/fondaparinux only, of whom 223 (38.0%) received low molecular weight heparin and the remainder other heparins or fondaparinux. Demographics are shown in Table 1. The most common type of active cancer at baseline in all cohorts was genitourinary, with the exception of the heparin/fondaparinux cohort where gastrointestinal cancer was the most common type (Table 2). The incidence rates for the primary outcomes for each cohort are shown in Figure 1. The rates of major bleeding were highest in the standard anticoagulation cohort (n=8 [4.8%]) and lowest in the early switchers (no major bleeding events occurred). The rates of recurrent VTE were similar in the in the rivaroxaban, early switcher and standard anticoagulation cohorts (n=5 [3.4%], n=1 [3.3%] and n=6 [3.6%], respectively) and were highest in the heparin/fondaparinux cohort (n=12 [4.9%]). All-cause mortality was highest in the heparin/fondaparinux cohort (n=61 [25.0%]) and lowest in the early switchers (no deaths occurred). Conclusions: In the real-world XALIA study, 38.0% of patients with cancer received treatment with low molecular weight heparin, which was in line with guidelines. The remaining patients received rivaroxaban, standard anticoagulation or were early switchers. For the three primary outcomes, the lowest incidence rates were observed in the early switcher cohort. The highest rates were in the standard anticoagulation cohort for major bleeding and the heparin/fondaparinux cohort for recurrent VTE and all-cause mortality; rates for all three primary outcomes were low in the rivaroxaban cohort, suggesting that rivaroxaban may be a safe and effective treatment option for patients with VTE and active cancer. Figure 1 Primary outcomes in patients with active cancer at baseline by treatment group. VTE, venous thromboembolism. Figure 1. Primary outcomes in patients with active cancer at baseline by treatment group. / VTE, venous thromboembolism. Disclosures Turpie: Janssen Research & Development, LLC: Consultancy, Honoraria; Bayer Pharma AG: Consultancy, Honoraria. Mantovani:Janssen-Cilag Ltd: Research Funding; Boehringer Ingelheim: Research Funding; Daiichi Sankyo: Consultancy; Bayer Pharma AG: Consultancy; Pfizer Inc: Research Funding. Haas:Sanofi SA: Consultancy; Pfizer Inc: Consultancy; Daiichi Sankyo: Consultancy; Bristol-Myers Squibb: Consultancy; Bayer Pharma AG: Consultancy; Aspen Pharmacare: Consultancy. Kreutz:Bayer Pharma AG: Honoraria; Servier Laboratories Ltd: Consultancy; Lundbeck Ltd: Consultancy; Daiichi Sankyo: Consultancy; Berlin-Chemie Menarini: Consultancy; Bayer Pharma AG: Consultancy; Bristol-Myers Squibb: Honoraria; Daiichi Sankyo: Honoraria. Monje:Bayer Pharma AG: Employment. Schneider:Bayer Pharma AG: Employment. van Eickels:Bayer Pharma AG: Employment. Gebel:Bayer Pharma AG: Employment. Ageno:Boehringer Ingelheim: Consultancy, Honoraria; Bristol-Myers Squibb: Consultancy, Honoraria; Bayer Pharmaceuticals: Research Funding; Daiichi Sankyo: Consultancy, Honoraria; Bayer Pharma AG: Consultancy, Honoraria.

Diabetes increases the risk of deep-vein thrombosis and pulmonary embolism

2015 ◽  
Vol 114 (10) ◽  
pp. 812-818 ◽  
Author(s):  
Wei-Sheng Chung ◽  
Cheng-Li Lin ◽  
Chia-Hung Kao
Keyword(s):  
Pulmonary Embolism ◽  
Cohort Study ◽  
Deep Vein Thrombosis ◽  
General Population ◽  
Proportional Hazards ◽  
Population Based ◽  
Cox Proportional Hazards ◽  
Vein Thrombosis ◽  
Deep Vein

SummaryWe evaluated the effects of diabetes on the risks of developing deep vein thrombosis (DVT) and pulmonary embolism (PE) in a nationwide, population-based cohort study in Taiwan. The patients with newly diagnosed type 2 diabetes mellitus (T2DM) were identified, and DM-free controls were randomly selected from the general population and frequency-matched according to age, sex, and index year by using the records of the Longitudinal Health Insurance Database between 2000 and 2011. Both cohorts were followed up until the end of 2011 to measure the incidence of DVT and PE. We analysed the risks of DVT and PE using Cox proportional-hazards regression models. The overall incidence of VTE was higher in the T2DM patients than in the controls (12.0 vs 7.51 per 10,000 person-years). The T2DM patients exhibited a 1.44-fold adjusted hazard ratio (aHR) of VTE development compared with the controls (95 % confidence interval [CI] = 1.27–1.63). The risks of DVT (aHR = 1.43, 95 % CI = 1.23–1.65) and PE (aHR = 1.52, 95 % CI = 1.22–1.90) were greater in the T2DM than those in the controls. The T2DM patients had a substantially higher risk of DVT (aHR = 5.10, 95 % CI = 3.12–8.32) and PE (aHR = 7.50, 95 % CI = 3.29–17.1) development than the controls did in adults aged 49 years and younger. In conclusion, the longitudinal nationwide cohort study indicated that T2DM patients carried greater risks of developing VTE than did the general population.

Risk of venous thromboembolism in ankylosing spondylitis: a general population-based study

2019 ◽  
Vol 78 (4) ◽  
pp. 480-485 ◽  
Author(s):  
Juan Antonio Aviña-Zubieta ◽  
Jonathan Chan ◽  
Mary De Vera ◽  
Eric C Sayre ◽  
Hyon Choi ◽  
...  
Keyword(s):  
Venous Thromboembolism ◽  
Ankylosing Spondylitis ◽  
General Population ◽  
Population Based ◽  
Incidence Rates ◽  
First Year ◽  
Healthcare Database ◽  
Cox Models ◽  
Increased Risk ◽  
Incident Cases

BackgroundVenous thromboembolism (VTE), including pulmonary embolism (PE) and deep venous thrombosis (DVT), can be life threatening. An increased frequency of VTE has been found in inflammatory conditions. To date, evidence assessing whether this risk is also greater in patients with ankylosing spondylitis (AS) is scarce.MethodsUsing the provincial British Columbia, Canada healthcare database that encompasses all residents within the province, we conducted matched cohort analyses of incident PE, DVT and overall VTE among incident cases of AS and compared them with individuals randomly selected from the general population without AS. We calculated incidence rates (IRs) of VTE and multivariable analyses after adjusting for traditional risk factors using Cox models.ResultsAmong 7190 incident cases of AS, 35 developed PE and 47 developed DVT. IRs of PE, DVT and overall VTE per 1000 person-years for patients with AS were 0.79, 1.06, 1.56 compared with 0.40, 0.50, 0.77 in the control cohort. Corresponding fully adjusted HRs (95% CI) of PE, DVT and VTE were 1.36 (0.92 to 1.99), 1.62 (1.16 to 2.26) and 1.53 (1.16 to 2.01), respectively. The risks of PE, DVT and VTE were highest in the first year of diagnosis with HR (95% CI) of 2.88 (0.87 to 9.62), 2.20 (0.80 to 6.03) and 2.10 (0.88 to 4.99), respectively.ConclusionsThese findings demonstrate an increased risk of VTE in the general AS population. This risk appears the most prominent in the first year after diagnosis.

scholarly journals Deep vein thrombosis in the lower extremities after femoral neck fracture: A retrospective observational study

2020 ◽  
Vol 28 (1) ◽  
pp. 230949901990117
Author(s):  
Ya-Hui Fu ◽  
Ping Liu ◽  
Xin Xu ◽  
Peng-Fei Wang ◽  
Kun Shang ◽  
...  
Keyword(s):  
Risk Factor ◽  
Femoral Neck ◽  
Femoral Neck Fracture ◽  
Independent Risk Factor ◽  
Incidence Rates ◽  
Femoral Neck Fractures ◽  
Vein Thrombosis ◽  
Before And After ◽  
Neck Fracture ◽  
Deep Vein

Purpose: The actual incidence of deep vein thrombosis (DVT) in femoral neck fractures is underestimated. This study aimed to investigate the incidence of DVT in the lower extremities after femoral neck fracture before and after operation. Methods: The clinical data of patients with femoral neck fractures treated at Xi’an Honghui Hospital between July 1, 2016, and December 31, 2018, were collected. The patients were examined with ultrasonography before and after operation and divided into thrombosis and non-thrombosis groups according to their ultrasonographic results. The incidence of DVT was reported as a percentage. Results: The incidence rates of preoperative and postoperative DVT were 32% and 56%, respectively. DVT on the uninjured side constituted 45% of all preoperative DVT and 43% of all postoperative DVT. Peripheral DVT constituted 90% and 84% of all preoperative and postoperative DVT, respectively. Diabetes was an independent risk factor of preoperative DVT. Blood loss was an independent risk factor of postoperative DVT, and open reduction and internal fixation surgical procedure was independent protective factor of postoperative DVT as compared with hemiarthroplasty and total hip replacement. Conclusions: The incidence rates of preoperative and postoperative DVT in the patients with femoral neck fracture were high, and orthopedists should pay more attention to DVT as a complication.

A SEER-based multiethnic picture of cholangiocarcinoma in the United States pre and post the advent of gemcitabine/cisplatin.

2018 ◽  
Vol 36 (4_suppl) ◽  
pp. 448-448
Author(s):  
Kabir Mody ◽  
Samuel O Antwi ◽  
David O Hodge ◽  
Zahara Meghji ◽  
Sikander Ailawadhi ◽  
...  
Keyword(s):  
United States ◽  
Overall Survival ◽  
Older Patients ◽  
The United States ◽  
Population Based ◽  
Incidence Rates ◽  
Hazard Ratios ◽  
Before And After ◽  
Using Data ◽  
Ethnic Variations

448 Background: Cholangiocarcinoma (CCA) is a rare, lethal cancer with five-year survival of less than 10%. Although incidence rates have been increasing in the United States, ethnic variations in survival have not been investigated. We examined multi-ethnic variation in overall survival (OS) and CCA-specific survival (CSS) using data from the population-based Surveillance Epidemiology and End Results (SEER) program in the four year periods before and after introduction of gemcitabine/cisplatin as treatment for CCA. Methods: The study included data from 9,975 CCA cases reported in SEER between 2006 and 2013. Multivariable-adjusted hazard ratios (HR) and 95% confidence intervals (CIs) were calculated to examine overall and cholangiocarcinoma-specific survival by ethnicity, age, gender and in the pre- and post- gemcitabine/cisplatin era (2006-2009 vs. 2010-2013). Results: Compared to non-Hispanic Whites, Hispanics had poorer 3-year OS (HR = 1.18, 95% CI = 1.10-1.26) and 3-year CCA-specific survival (HR = 1.25, 95% CI = 1.16-1.35). Similarly, non-Hispanic Blacks had 3-year OS (HR = 1.22, 95% CI = 1.12-1.30) and 3-year CCA-specific survival (HR = 1.24, 95% CI = 1.13-1.37). Males and older patients also were found to have shorter survival compared to females and younger patients. Also noted was an increase in CCA incidence rate over time (2006-2013) of 5.93%. Among those < 50 versus ≥50 years old, a 23% higher rate of incidence in those < 50 was noted. Overall survival and CSS were both significantly improved for patients post-advent of Gemcitabine/Cisplatin. Statistically significant improvement in CSS pre- and post-advent of Gemcitabine/Cisplatin was noted in non-hispanic whites (p < 0.001) and Hispanics (p = 0.02). Conclusions: Hispanics and non-Hispanic Blacks have worse survival after diagnosis with CCA. Further studies are needed to determine the determinants of poor survival among these groups toward targeted intervention. Significant improvements in OS and CSS have been seen after the advent of Gemcitabine/Cisplatin. The incidence of CCA is rising faster in young persons, under the age of 50, compared with older patients.

scholarly journals Incidence of venous thromboembolism following initiation of non-steroidal anti-inflammatory drugs in U.S. women

Rheumatology ◽  
2020 ◽  
Vol 59 (9) ◽  
pp. 2502-2511
Author(s):  
Tracy L Kinsey ◽  
Til Stürmer ◽  
Michele Jonsson Funk ◽  
Charles Poole ◽  
Ross J Simpson ◽  
...  
Keyword(s):  
Venous Thromboembolism ◽  
Observational Studies ◽  
Health Study ◽  
Calendar Time ◽  
Vein Thrombosis ◽  
Hazard Ratios ◽  
Risk Patients ◽  
Inflammatory Drugs ◽  
Deep Vein

Abstract Objective To evaluate the risk of venous thromboembolism (VTE, i.e. deep vein thrombosis or pulmonary embolism, or both) following new use of NSAIDs in a long-term cohort of U.S. women. Methods We investigated initiation of coxibs and traditional NSAIDs (excluding aspirin) and incident VTE in 39 876 women enrolled in the Women’s Health Study from 1993–95 and followed with yearly questionnaires until 2012. We defined initiation as the first reported use of NSAIDs for ≥4 days per month. Incident VTE was confirmed by an end point committee. We estimated hazard ratios (HRs) and risk differences (RDs, expressed as percentages) comparing NSAID initiation with non-initiation and acetaminophen initiation (active comparator) via standardization using a propensity score that incorporated age, BMI, calendar time, and relevant medical, behavioural, and socioeconomic variables updated over time. Results The HR (95% CI) for risk of VTE in the as treated analyses comparing initiation with non-initiation, was 1.5 (1.2, 1.8) for any NSAID, 1.3 (1.1, 1.7) for traditional NSAIDs, and 2.0 (1.3, 3.1) for coxibs, with 2-year RDs 0.11, 0.08 and 0.32, respectively. When comparing the risk of VTE after initiation of any NSAID with that after acetaminophen initiation, the HRs were 0.9 (0.6, 1.5), 0.9 (0.5, 1.5) and 1.4 (0.6, 3.4), with 2-year RDs 0.03, –0.01, and 0.13, respectively. Conclusion New use of NSAIDs was associated with increased VTE risk compared with non-use, but the association was null or diminished when compared with acetaminophen initiation. Elevated VTE risks associated with NSAID use in observational studies may in part reflect different baseline risks among individuals who need analgesics and may overstate the risk patients incur compared with pharmacologic alternatives.

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