Age at first consultation for infertility or conception of first child (if no fertility problem) | All workers1-151 |
Primary infertility, no conceptions n (%) |
Primary infertility, no pregnancies reaching ⩾24 weeks n (%) |
Male workers: | |||
<25 | 857 | 5 (0.6) | 5 (0.6) |
25–29 | 2348 | 49 (2.1) | 55 (2.3) |
30–34 | 1415 | 50 (3.5) | 57 (4.0) |
35–39 | 550 | 23 (4.2) | 27 (4.9) |
⩾40 | 183 | 14 (7.7) | 20 (10.9) |
Total | 5353 | 141 (2.6) | 164 (3.0) |
χ2 trend: p<0.0001 | χ2 trend: p=0.002 | ||
Female workers: | |||
<25 | 175 | 0 (0) | 2 (1.1) |
25–29 | 245 | 10 (4.1) | 12 (4.9) |
30–34 | 117 | 5 (4.3) | 6 (5.1) |
35–39 | 56 | 7 (12.5) | 8 (14.3) |
⩾40 | 10 | 0 (0) | 1 (10.0) |
Total | 603 | 22 (3.7) | 29 (4.8) |
χ2 trend: p<0.0001 | χ2 trend: p=0.002 |
↵1-150 Primary infertility defined as (a) having consulted a clinician about problems achieving a pregnancy, and never having achieved a pregnancy; and (b) having consulted a clinician about problems achieving a pregnancy, and never having achieved a pregnancy lasting ⩾24 weeks of gestation.
↵1-151 Aged ⩾40 at time of survey, and who had been employed when their first child was conceived, or when they were first attempting to have a child.