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Research article:

Breast and cervical cancer screening utilization, and recording bias, in women with type 2 diabetes (UK)

Reference:

Matthew Carr, Evan Kontopantelis, Tim Doran, Christine Campbell, Lorraine Lipscombe, Emma Crosbie, Anthony Howell, Iain E Buchan, Andrew G Renehan (2015) Breast and cervical cancer screening utilization, and recording bias, in women with type 2 diabetes (UK). Diabetologia, doi:

Link to article
Abstract
Aims/hypothesis: Studies from healthcare databases suggest that patients with type 2 diabetes (T2D) under-utilize cancer screening opportunities, but recording bias may be a problem. We evaluated the relative effect of T2D on screening utilization trends among long-established UK national programmes in breast and cervical cancers; and tested the impact of introducing a primary care financial incentive scheme (QOF) in 2004, known to improve data recording for diabetes-related care. Materials and methods: Using the Clinical Practice Research Datalink, we identified women with prevalent T2DM (N = 174,256), separately by year for 1999 to 2011, and eligible for screening events for breast (aged 50-70 years) and cervical (aged 35-49 and 50-64 years) cancers. We described secular trends and compared these with the non-diabetes population, and accounted for co-morbidities using matched conditional logistic regression models. We performed interrupted time-series (ITS) analyses to assess the impact of the QOF introduction. Results: Compared with the non-diabetes population, relative uptake rates for breast and cervical screening were generally similar in patients with T2D pre-2004, becoming greater for years post-2004. These patterns were unaffected by adjustment for GP practice, and were not accounted for by T2D associated co-morbidities. ITS analysis showed increased activities in all three screening groups for 2007, but these broadly returned to pre-2004 trends by 2011, paralleling similar patterns in recording for other care provision indicators. Conclusions/interpretation: In this population, we found no evidence that women with T2D under-utilize breast and cervical cancer screening opportunities. A financial incentive scheme was associated with intermediate-term improvements in screening utilization, but this is likely to reflect improved recording of care events.
Author for correspondence
Andrew Renehan
Email for correspondence
arenehan@picr.man.ac.uk

Code list: res22: screen_breast

50 codes in list

Code Coding system Description Entity type List name
1A81.00 Read No breast lump test res22: screen_breast
1A82.00 Read Breast lump present test res22: screen_breast
1A84.00 Read Breast lump detected by mammogram test res22: screen_breast
537..00 Read Soft tissue X-ray breast test res22: screen_breast
5371.00 Read Mammography requested test res22: screen_breast
537..11 Read Mammography - X-ray test res22: screen_breast
5372.00 Read Mammography normal test res22: screen_breast
5373.00 Read Mammography abnormal test res22: screen_breast
5374.00 Read Mammography offered test res22: screen_breast
5376.00 Read Mammography attended test res22: screen_breast
537Z.00 Read Soft tissue X-ray breast NOS test res22: screen_breast
54L3.00 Read Mammary gland contrast radiog. test res22: screen_breast
54L3.11 Read Breast contrast radiog test res22: screen_breast
54L3.12 Read Mammary contrast radiog test res22: screen_breast
56B1.00 Read Specific mammary gland imaging test res22: screen_breast
585C.00 Read US scan of breast test res22: screen_breast
5861.00 Read Thermography - breast test res22: screen_breast
5861.11 Read Mammogram-thermographic test res22: screen_breast
6862.00 Read Breast neoplasm screen test res22: screen_breast
6862000 Read Breast neoplasm screen normal test res22: screen_breast
6862100 Read Breast neoplasm screen abnorm test res22: screen_breast
6862.11 Read Mammography - screening test res22: screen_breast
6862Z00 Read Breast neoplasm screen NOS test res22: screen_breast
6865.00 Read Breast neoplasm screen normal test res22: screen_breast
7P0F.00 Read Diagnostic imaging of breast test res22: screen_breast
7P0F000 Read Scintimammography test res22: screen_breast
7P0F100 Read Thermography of breast test res22: screen_breast
7P0F200 Read Mammography test res22: screen_breast
7P0Fy00 Read Other specified diagnostic imaging of breast test res22: screen_breast
7P0Fz00 Read Diagnostic imaging of breast NOS test res22: screen_breast
8HT8.00 Read Referral to mammography clinic test res22: screen_breast
8HTI.00 Read Referral to breast clinic test res22: screen_breast
9N0A.00 Read Seen in breast clinic test res22: screen_breast
9N1y900 Read Seen in breast clinic test res22: screen_breast
9Np2.00 Read Seen in fast track suspected breast cancer clinic test res22: screen_breast
9OH9.00 Read Breast screen abnorm.-told pat test res22: screen_breast
9OHZ.00 Read Breast screening administr.NOS test res22: screen_breast
9Oq8.00 Read Attended breast screening clinic test res22: screen_breast
R138.00 Read [D]Breast imaging abnormal test res22: screen_breast
R138000 Read [D]Mammogram abnormal test res22: screen_breast
R138z00 Read [D]Breast imaging abnormal NOS test res22: screen_breast
ZV76100 Read [V]Screening for malignant neoplasm of breast test res22: screen_breast
L0010CB OXMIS SEEN IN MAMMOGRAPHY CLINIC test res22: screen_breast
L0010GB OXMIS REFERRED TO MAMMOGRAPHY CLINIC test res22: screen_breast
X9110 OXMIS MAMMOGRAM test res22: screen_breast
X9111 OXMIS MAMMOGRAM NORMAL test res22: screen_breast
X9111AB OXMIS MAMMOGRAM ABNORMAL test res22: screen_breast
Y060 E OXMIS BREAST SCREENING EXAMINATION test res22: screen_breast
Y1000HB OXMIS BREAST SCREENING test res22: screen_breast
Y600 EN OXMIS BREAST SCREENING EXAMINATION NORMAL test res22: screen_breast

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