A Validation of Hysterectomy Procedural Codes in the Canadian Institutes for Health Information Discharge Abstract Database

Bacal, Vanessa; Choudhry, Abdul Jamil; Baier, Kristina; Gratton, Sara-Michelle; Khair, Simonne; Médor, Maria Cassandre; Mercier, Stéphanie; Nguyen, Vincent; Chen, Innie

doi:10.1016/j.jogc.2019.02.155

Cited by 1 publication

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“…As we used data from a large administrative health database, there is the potential for misclassification of non‐specific OHIP codes used for pain and infertility visits; however, in such a case we would expect nondifferential misclassification across the different surgery types. Surgery for endometriosis is variable and may be difficult to accurately capture and categorize through the available procedure codes, although previous work affirms that validity of capturing hysterectomy surgery through database is reliable 30,31 . It is likely that there is some residual confounding by indication (severity of endometriosis), which we were not able to capture in this work because endometriosis is not subclassified within the diagnostic codes used in this database.…”

Section: Discussionmentioning

confidence: 89%

“…surgery types. Surgery for endometriosis is variable and may be difficult to accurately capture and categorize through the available procedure codes, although previous work affirms that validity of capturing hysterectomy surgery through database is reliable 30,31. It is likely that there is some residual confounding by indication (severity of endometriosis), which we were not able to capture in this work because endometriosis is not subclassified within the diagnostic codes used in this database.…”

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confidence: 89%

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Short‐term outcomes of endometriosis surgery in Ontario: A population‐based cohort study

Bougie

McClintock

Pudwell

et al. 2021

Acta Obstet Gynecol Scand

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Introduction: Our objective was to compare the short-term outcomes by type of surgical management of endometriosis in Ontario, Canada and to characterize the population of women undergoing surgical management of endometriosis. Material and methods:We conducted a population-based cohort study including women aged 18-50 years undergoing same-day or inpatient surgery for endometriosis from 1 April 2002 through 31 March 2018. Surgery was classified as minimally invasive hysterectomy (MIH), total abdominal hysterectomy (TAH) or minor or major conservative (uterus-preserving) surgery. Outcomes examined included length of stay, intraoperative complications, postoperative complications, emergency department visits, ambulatory care visits, and readmission. We estimated the relative risk of these outcomes in minor, major conservative surgery and TAH vs MIH adjusted for age, income quintile, parity, and comorbidities.Results: A total of 85 605 patients underwent surgery, 12.9% MIH, 22.1% TAH, 36.3% major conservative, and 28.6% minor conservative. The mean age at index surgery was 37.6 ± 7.7 years. Before surgery, 70.6% of patients had visited a physician for pain at least once (64.7% MIH, 69.5% TAH, 71.1% major conservative and 73.4% minor conservative) and 23.5% of patients had sought infertility consultation (5.7% MIH, 6.6% TAH, 29.3% major conservative and 37.1% minor conservative). The overall risk of intraoperative and postoperative complications was 1.5% and 4.7%, respectively.In adjusted models, compared with those undergoing minor conservative surgery, those having major conservative surgery were 1.77 (95% CI 1.49-2.11) times as likely to experience an intraoperative complication, those having MIH and TAH were 2.55 (95% CI 2.08-3.13) and 2.34 (95% CI 1.93-2.82) times as likely to do so, respectively.Similarly, compared with those undergoing minor conservative surgery, those having major conservative surgery were 2.60 (95% CI 2.30, 2.93) times as likely to experience any postoperative complication, and those having MIH and TAH were 4.69 (95% CI 4.11-5.36) and 5.38 (95% CI 4.76-6.09) times as likely to do so, respectively. | 1141 BOUGIE Et al.

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Section: Discussionmentioning

confidence: 89%

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confidence: 89%