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Birth weight distribution for infants born in Maine, 2000–2010.
| Variable | Grand mean | 95% CI | P trend | Slope | |
|---|---|---|---|---|---|
| Infant birth weight (gms) | 3409.1 | 3399.3 | 3418.8 | 0.01 | −4.4 |
| Birth wt <2500 gms (%) | 5.7 | 5.6 | 5.7 | 0.27 | |
| Birth wt 2500–3999 gms (%) | 81.1 | 80.4 | 81.8 | 0.05 | |
| Birth wt ≥4000 gms (%) | 13.2 | 13.5 | 13.9 | 0.02 | −0.02 |
