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Table 3 A comparison of men and women's answers to questions regarding fertility

From: Swedish high school students' knowledge and attitudes regarding fertility and family building

Question Female respondents Mean (SD) Male respondents Mean (SD) t-value p-value Correct answer
At what age is a woman most fertile? 22 yrs
(± 5.1)
22 yrs
(± 3.8)
0.0 1.0 20-24 yrs
At what age does a woman's fertility start to decline? 37.5 yrs
(± 6.2)
37.5 yrs
(± 3.8)
0.0 1.0 25-29 yrs
At what age does a woman's fertility decline markedly? 44 yrs
(± 6.0)
47.5 yrs
(± 10.9)
2.90 < 0.01 35-39 yrs
What is the chance/risk (in %) of a pregnancy occurring when a young man and woman under 25 years of age have unprotected intercourse? 72.5%
(± 18.6)
64.5%
(± 23.5)
-2.7 < 0.01 30-39%
What percentage of couples do you estimate are involuntarily infertile? 30.7%
(± 20.0)
22.5%
(± 16.3)
-3.3 < 0.01 10-19%
How often (in %) do you estimate that in-vitro fertilization is successful? 45.2%
(± 20.8)
49.5%
(± 23.0)
1.40 0.16 20-29%
  1. Student's t-test used to test for mean differences between the groups. Correct answers to the questions (Lampic et al., 2005) are given in the right hand column