Table II.
Fertility-related characteristics of the study population stratified by body mass index*, 2002 National Survey of Family Growth
| BMI 18.5–24.9 kg/m2 (n = 236) | BMI 25.0–29.9 kg/m2 (n = 125) | BMI 30.0–34.9 kg/m2 (n = 71) | BMI ≥ 35.0 kg/m2 (n = 65) | P-value | |
|---|---|---|---|---|---|
| Medical help received† | |||||
| Advice | 78.4 | 73.1 | 61.7 | 71.9 | 0.26 |
| Infertility testing | 61.2 | 48.5 | 59.7 | 59.1 | 0.34 |
| Drugs to improve ovulation | 49.4 | 31.7 | 57.1 | 42.4 | 0.02 |
| Surgery to correct blocked tubes | 12.0 | 5.7 | 5.1‖ | 4.9‖ | 0.06 |
| Artificial insemination | 12.6 | 16.0 | 11.9‖ | 11.6‖ | 0.87 |
| Other medical help | 17.2 | 17.6 | 14.1 | 8.6‖ | 0.40 |
| Received medical or surgical treatment | 0.09 | ||||
| Yes | 58.9 | 47.4 | 64.0 | 42.7 | |
| No | 41.1 | 52.6 | 36.0 | 57.3 | |
| Duration of infertility prior to seeking medical help‡ | 0.99 | ||||
| <12 months | 33.2 | 24.8 | 34.5 | 31.7 | |
| 12–23 months | 37.8 | 38.2 | 34.1 | 37.2 | |
| 24–35 months | 14.2 | 16.5 | 14.5‖ | 13.7 | |
| >35 months | 14.8 | 20.5 | 16.9 | 17.4 | |
| Partner who had infertility testing§ | 0.36 | ||||
| Female | 27.0 | 17.8 | 30.4 | 32.6 | |
| Male | 11.4 | 3.7 | 8.6 | 5.5 | |
| Both | 61.6 | 78.5 | 61.0 | 61.9 | |
| Infertility problems identified by provider† | |||||
| Problems with ovulation | 30.8 | 25.7 | 49.4 | 38.2 | 0.04 |
| Blocked tubes | 14.8 | 9.7 | 7.8‖ | 2.2‖ | 0.01 |
| Other tube or pelvic problems | 16.5 | 14.7 | 7.1‖ | 14.1‖ | 0.30 |
| Endometriosis | 19.4 | 11.2 | 9.2‖ | 14.1 | 0.06 |
| Semen or sperm problems | 18.0 | 22.6 | 15.7 | 11.5 | 0.28 |
| Any other infertility problems | 8.9 | 7.0‖ | 1.4‖ | 11.3‖ | 0.25 |
*Data are presented as weighted percentages.
†Respondents could select more than one response.
‡Information was not available from all respondents.
§Question was applicable to respondents who indicated that they received infertility testing.
‖Note the unweighted frequency was <10.