Skip to main content

Table 3 Differences between sister controls and controls recruited through the general practitioner (GP controls)

From: A nationwide study on reproductive function, ovarian reserve, and risk of premature menopause in female survivors of childhood cancer: design and methodological challenges

  sister controls (n = 313) GP controls (n = 430) P value
Age 30 (18–58) 34 (18–54) <0.001
High education (n/N) (%) 158/308 (51.3) 293/428 (68.5) <0.001
Is in committed relationship (n/N) (%) 249/311 (80.1) 341/428 (79.7) NS
Has had intercourse (n/N) (%) 288/312 (92.3) 407/426 (95.5) NS
Has offspring (n/N) (%) 140/313 (44.7) 201/429 (46.9) NS
Has previously consulted a gynaecologist for fertility problems (n/N) (%) 29/301 (9.6) 44/411 (10.7) NS
  1. Data presented as median (range) unless indicated otherwise. NS = not significant.