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Table 2 Comparison of several characteristics between two different groups of participants

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

Variable Participants P value
  Participating in questionnaire part only (n = 306) Participating in questionnaire and clinical part (n = 635)  
Age (years) 30 (18–52) 27 (18–56) <0.001
Age at diagnosis (years) 6 (0–16) 6 (0–17) NS
Time since diagnosis (days) 8280.5 (2563–15423) 7418 (2068–14612) 0.001
High education (n/N) (%)* 103/300 (34.3) 267/619 (43.1) 0.002
In committed relationship (n/N) (%)* 217/304 (71.4) 431/633 (68.1) NS
Has had intercourse (n/N) (%)* 248/303 (81.8) 555/631 (88.0) 0.01
Has offspring (n/N) (%)* 146/304 (48.0) 183/633 (28.9) <0.001
Has previously consulted a gynaecologist for fertility problems (n/N) (%)* 46/289 (15.9) 72/621 (11.6) NS
  1. Data presented as median (range) unless indicated otherwise. NS = not significant. * Total N does not correspond with the number mentioned in the heading of the table because of missing data.