Klaas H. Groenier

Klaas H. Groenier


Research Focus & Metrics

Academic Career Length

30Years (1997-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 September 2008 in Annals of the Rheumatic Diseases
Verified
Journal Article
Closed access
CPC Peters-Veluthamaningal
C Peters-Veluthamaningal
JWJ C Winters
J C Winters
KGKlaas H. Groenier
Klaas H. Groenier
BJB Meyboom-De Jong
B Meyboom-De Jong
To study efficacy and safety of corticosteroid injections for trigger finger (flexor tenosynovitis) in adults in general practice. Adult patients presenting with trigger finger were recruited by 21 participating general practitioners. In this randomised placebo controlled double-blinded trial, patients were injected locally with one or two injections of 1 ml triamcinolonacetonide (TCA) or 0.9% NaCl. Outcomes regarding immediate treatment response, severity of symptoms, functional disability, patient satisfaction and side effects were measured 1 week after intervention and during the 12 months thereafter. A total of 50 patients were included. Short-term outcomes for the TCA and NaCl group, respectively, were: proportion of patients with satisfactory immediate treatment response 16/25 and 5/25 (p<0.001), patients with reduction in the frequency of triggering 13/24 and 6/22 (p = 0.053), mean difference in severity of pain 4.2 and 0.9 (p<0.001), patients perceiving improvement 22/25 and 9/25 (p<0.001) and difference in Arthritis Impact Measurement Scale 2 (AIMS-2) score 4.02 and 0.06 (p = 0.001). Long-term effects could only be assessed by analysing the cohort of participants who received TCA (as allocated treatment or escape treatment), due to a high proportion of non-responders in the NaCl group. The short-term beneficial effects were maintained during the follow-up phase of 12 months. Patients were satisfied with corticosteroid injection therapy and there were only a few minor side effects. Local injection with TCA is effective and safe for treating trigger finger as compared to placebo injection. The effects of steroid injections last up to 12 months.

30 August 2016 in Journal of Diabetes Research
Verified
Journal Article
Open access
PDF file
SHSteven H. Hendriks
Steven H. Hendriks
LHLaura C. Hartog
Laura C. Hartog
KGKlaas H. Groenier
Klaas H. Groenier
AMAngela H. E. M. Maas
Angela H. E. M. Maas
KHKornelis J. J. van Hateren
Kornelis J. J. van Hateren
HBHenk J. G. Bilo
Henk J. G. Bilo
Background.Aim was to investigate whether the degree of patient activation of patients with type 2 diabetes (T2D) is different between men and women. Furthermore, we investigated which factors are associated with patient activation in men and women.Methods.This cross-sectional study included 1615 patients with T2D from general practices. Patient activation was measured with the Patient Activation Measure (PAM) questionnaire. Multivariate linear regression analyses were used to investigate the association between gender and patient activation. Stratified analyses according to gender were performed to investigate which factors are associated with patient activation.Results.No association between gender and PAM score was found after adjustment for all selected confounders (p=0.094). In men, lower age (p=0.001), a higher WHO-5 score (p<0.001), and a lower BMI (p=0.013) were associated with a higher PAM score. In women, a higher WHO-5 score (p<0.017) and the absence of macrovascular complications (p<0.031) were associated with a higher PAM score.Conclusion.There is no difference in the degree of patient activation of men and women with T2D. Age, well-being, and BMI were found to be associated with patient activation in men, whereas well-being and macrovascular complications were found to be associated with patient activation in women.

25 August 2009 in European Journal of Internal Medicine
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Journal Article
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IDI. Drion
I. Drion
HJH. Joosten
H. Joosten
LDL.D. Dikkeschei
L.D. Dikkeschei
KGKlaas H. Groenier
Klaas H. Groenier
HBH.J.G. Bilo
H.J.G. Bilo

21 May 2023 in European Journal of Vascular and Endovascular Surgery
Verified
Journal Article
Open access
LRLeonie Rosien
Leonie Rosien
PDPeter. R. van Dijk
Peter. R. van Dijk
JOJacques Oskam
Jacques Oskam
MPMaurice E.N. Pierie
Maurice E.N. Pierie
KGKlaas H. Groenier
Klaas H. Groenier
HBHenk J.G. Bilo
Henk J.G. Bilo
Lower extremity amputations are a major complication of diabetes mellitus (DM). In a previous Dutch study, the incident rate of major amputations was 89.2 per 100 000 person years. The primary aim of this study was to describe the lower extremity amputation rates in people with DM in the Zwolle region, where preventive and curative footcare is organised according to the guidelines of the International Working Group of the Diabetic Foot (IWGDF). The secondary aim was to evaluate outcomes and underlying characteristics of these people. This was a retrospective regional population based cohort study. Data from all people with DM treated in primary and secondary care, living in the region Zwolle were collected. All amputations in the period 2017 to 2019 were analysed. Comparisons were made between those with and without an amputation. In the analysis 5 915 people with DM were included, with a mean age of 67.8 (IQR 57.9, 75.9) years. Of those people, 47% were women and the median HbA1c was 53 (IQR 47, 62) mmol/mol. Over the three year study period, a total of 68 amputations were performed in 59 people: 46 minor, 22 major. This translated into an average annual crude amputation incidence rate of non-traumatic major and minor amputations of 41.5 and 86.9 per 100 000 person years among people with diabetes. Compared with those not undergoing amputations, those who underwent an amputation were more often men, older, mainly had T2DM, were treated in secondary care, had higher diastolic blood pressure, worse diabetic footcare profile, longer DM duration and higher HbA1c. At the end of the follow up, 111 people died: 96 (1.6%) without and 15 (25.4%) with amputations (p < .001). This retrospective study provides detailed insight into the rate of amputations in Dutch people with diabetes in the region Zwolle. Compared with previous Dutch estimates, these data suggest a considerable decrease in major amputation incidence rate.

18 June 1997 in Cancer Immunology, Immunotherapy
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Journal Article
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MBMarc Baay
Marc Baay
JDJitze M. Duk
Jitze M. Duk
KGKlaas H. Groenier
Klaas H. Groenier
MBMatthé P. M. Burger
Matthé P. M. Burger
HBHenk W. A. de Bruijn
Henk W. A. de Bruijn
PHP. Herbrink
P. Herbrink

28 November 2022 in Cancer Epidemiology, Biomarkers & Prevention
Verified
Journal Article
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JHJing de HAAN-DU
Jing de HAAN-DU
KGKlaas H. Groenier
Klaas H. Groenier
BWBrendy Wauben-Spaetgens
Brendy Wauben-Spaetgens
MJMathilde Jalving
Mathilde Jalving
NKNanne Kleefstra
Nanne Kleefstra
GBGeertruida de Bock
Geertruida de Bock
Background: Poor glycemic control prior to cancer diagnosis for patients with preexisting type 2 diabetes (T2DM) may predict a worse cancer diagnosis. We investigated the association between pre-diagnosis glycemic control and all-cause mortality in patients with T2DM who develop cancer. Methods: This prospective cohort study linked data from three sources covering 1989 to 2019: a T2DM benchmarking database, the Netherlands Cancer Registry, and the Personal Records Database. We included patients with T2DM and incident primary breast, colorectal, or prostate cancer (stage 0–III), with target glycemic control defined according to Dutch guidelines. Analysis involved estimating the association between glycemic control and all-cause mortality with Cox proportional hazard models, accounting for individual expected survival relative to the general population and relevant disease (e.g., diabetes duration and medications) and individual (e.g., age and gender) characteristics. Results: Of the 71,648 linked cases, 620 had breast cancer, 774 had colorectal cancer, and 438 had prostate cancer, with follow-up data available for 6.4 (4.2–8.4), 5.6 (2.7–7.6), and 6.3 (4.5–8.2) years, respectively. Compared with patients with pre-diagnosis glycemic control at target, the HRs and 95% confidence intervals for mortality among those with pre-diagnosis glycemic control not at target were 1.40 (1.00–1.96) for breast cancer, 1.45 (1.12–1.88) for colorectal cancer, and 1.39 (0.98–1.98) for prostate cancer. Conclusions: Among patients with T2DM in Dutch primary care, poor glycemic control before diagnosis with breast and colorectal cancer can increase mortality compared with good control. Impact: Glycemic control prior to cancer diagnosis is of prognostic value.