Table 2.
Childhood adiposity by time period and reported fertility difficulties in adulthooda
| Adiposity measure | Fertility difficulties
|
|||||||
|---|---|---|---|---|---|---|---|---|
| Medical help
|
Tried unable
|
Ever sought help
|
Any difficulties
|
|||||
| RR | 95% CI | RR | 95% CI | RR | 95% CI | RR | 95% CI | |
| Body mass index (BMI) | ||||||||
| Child BMI (age < 9) | ||||||||
| Normal weight | Ref. | — | Ref. | — | Ref. | — | Ref. | — |
| Overweight | 1.69 | 0.75–3.83 | 1.19 | 0.65–2.19 | 1.36 | 0.74–2.50 | 1.31 | 0.77–2.23 |
| Obese | 0.58 | 0.08–4.18 | 1.76 | 1.04–2.97 | 0.65 | 0.24–1.73 | 1.54 | 0.92–2.57 |
| Early teen BMI (age 9–12) | ||||||||
| Normal weight | Ref. | — | Ref. | — | Ref. | — | Ref. | — |
| Overweight | 1.08 | 0.49–2.41 | 1.45 | 0.97–2.16 | 1.26 | 0.78–2.02 | 1.35 | 0.93–1.97 |
| Obese | 1.00 | 0.24–4.10 | 1.94 | 1.22–3.08 | 1.37 | 0.68–2.74 | 1.82 | 1.17–2.82 |
| Late teen BMI (age 13–18) | ||||||||
| Normal weight | Ref. | — | Ref. | — | Ref. | — | Ref. | — |
| Overweight | 1.23 | 0.51–2.95 | 1.26 | 0.81–1.96 | 0.93 | 0.50–1.70 | 1.24 | 0.83–1.88 |
| Obese | 1.38 | 0.43–4.43 | 1.60 | 0.99–2.58 | 1.03 | 0.51–2.08 | 1.49 | 0.95–2.33 |
| Ever overweight/obese age < 12 | 1.33 | 0.69–2.57 | 1.44 | 1.03–2.03 | 1.13 | 0.72–1.75 | 1.42 | 1.03–1.95 |
| Ever overweight/obese age ≤ 18 | 1.10 | 0.62–1.94 | 1.25 | 0.92–1.69 | 0.95 | 0.65–1.39 | 1.23 | 0.93–1.63 |
| Subscapular skinfold (SSSF) | ||||||||
| Child SSSF (age < 9) | ||||||||
| Normal (< 85th percentile) | Ref. | — | Ref. | — | Ref. | — | Ref. | — |
| High (85th–94th percentile) | 1.62 | 0.79–3.32 | 1.43 | 0.96–2.15 | 1.46 | 0.89–2.39 | 1.43 | 0.98–2.10 |
| Very high (≥ 95th percentile) | 1.87 | 0.95–3.71 | 1.20 | 0.79–1.83 | 1.30 | 0.79–2.14 | 1.27 | 0.86–1.88 |
| Early teen SSSF (age 9–12) | ||||||||
| Normal (< 85th percentile) | Ref. | — | Ref. | — | Ref. | — | Ref. | — |
| High (85th–94th percentile) | 1.46 | 0.88–2.41 | 1.23 | 0.88–1.70 | 1.15 | 0.78–1.69 | 1.20 | 0.89–1.63 |
| Very high (≥ 95th percentile) | 0.75 | 0.27–2.06 | 1.37 | 0.92–2.04 | 1.08 | 0.58–1.74 | 1.26 | 0.86–1.85 |
| Late teen SSSF (age 13–18) | ||||||||
| Normal (< 85th percentile) | Ref. | — | Ref. | — | Ref. | — | Ref. | — |
| High (85th–94th percentile) | 1.55 | 0.87–2.75 | 1.37 | 0.99–1.91 | 1.51 | 1.03–2.21 | 1.22 | 0.89–1.67 |
| Very high (≥ 95th percentile) | 1.98 | 0.58–6.71 | 1.19 | 0.69–2.03 | 1.32 | 0.65–2.65 | 1.24 | 0.75–2.03 |
| Ever ≥ 85th percentile age < 12 | 2.16 | 1.15–4.06 | 1.46 | 1.05–2.04 | 1.41 | 0.94–2.12 | 1.56 | 1.13–2.14 |
| Ever ≥ 85th percentile age ≤ 18 | 2.32 | 1.29–4.18 | 1.48 | 1.09–2.00 | 1.43 | 0.99–2.06 | 1.37 | 1.04–1.80 |
a
Results of log-binomial regression; estimates adjusted for education level, race, tobacco use history, current BMI and adult income; numbers in bold significant at p < 0.05