Table 2. Knowledge regarding the impact of age on fertility in fertile and subfertile women.
Questions Fertile
(n=250)		 Subfertile
(n=250)		 p-value*
At what age are women the most fertile?
Before 30 †
30 - 34
35 - 39
40 - 44
45 - 49
> 50
No effect
212 (84.8)
27 (10.8)
6 (2.4)
2 (0.8)
1 (0.4)
0
2 (0.8)
211 (84.4)
26 (10.4)
9 (3.6)
2 (0.8)
0
0
2 (0.8)		 0.902
At what age does female fertility start to decrease?
Before 30
30 - 34 †
35 - 39
40 - 44
45 - 49
> 50
No effect
4 (1.6)
33 (13.2)
102 (40.8)
62 (24.8)
30 (12.0)
14 (5.6)
5 (2.0)
3 (1.2)
45 (18.0)
122 (48.8)
59 (23.6)
14 (5.6)
4 (1.6)
3 (1.2)		 0.140
At what age is there a marked decrease in female fertility?
Before 30
30 - 34
35 - 39 †
40 - 44
45 - 49
> 50
No effect
3 (1.2)
8 (3.2)
36 (14.4)
94 (37.6)
51 (20.4)
50 (20.0)
8 (3.2)
0
13 (5.2)
56 (22.4)
101 (40.4)
53 (21.2)
26 (10.4)
1 (0.4)		 0.021
At what age does fertility end in women?
Before 40
40 - 44
45 - 49 †
> 50
No effect
5 (2.0)
22 (8.8)
51 (20.4)
144 (57.6)
28 (11.2)
2 (0.8)
25 (10.0)
66 (26.4)
130 (52.0)
27 (10.8)		 0.114
Does the age of women affect the success rate of in-vitro fertilization (IVF)?
Yes †
No
183 (73.2)
67 (26.8)
210 (84.0)
40 (16.0)		 0.003

Values are frequency, n (%)
* Chi-square test, compare the proportion of fertile and subfertile women who responded with the correct answer
† Correct answer