Socioeconomic position and prognosis in premenopausal breast cancer: a population-based cohort study in Denmark

Table 1 Descriptive patient characteristics of premenopausal women diagnosed with non-metastatic breast cancer during 2007-2011

^a Married included women living in a registered partnership; single included never married, divorced, or widowed. ^b Based on sample quartiles categorized into low (<Q1), medium (Q1-Q2), and high (Q3<). ^c Low: primary school (~9-11 years of schooling); intermediate: upper secondary school (~12-13 years of schooling); high: tertiary education (~14-20 year of schooling). ^d Employed included women receiving no benefits and women on maternity leave; unemployment included women receiving non-health related unemployment benefits; health-related absenteeism included women receiving a health-related social benefit. ^e Median age was 45 years (IQR: 41–49).^f Including intention to treat radiotherapy. If lumpectomy was followed by mastectomy, the date of lumpectomy was used ^g Derived from tumor size and lymph node status. ^h Ductal and lobular tumors. Other were not graded. In accordance with Danish law, cell sizes with fewer than five observations and cells permitting back calculation are reported in aggregate
Abbreviations: CCI Charlson Comorbidity Index, ER estrogen receptor, HER2 human epidermal growth factor 2, TNBC triple negative breast cancer, TNM tumor, node, metastasis

ISSN: 1741-7015