Information is not available in the format requested. The following table shows the latest information on live births by birth weight and gestational age at birth.
Birth weight (grams) Gestational age (weeks) All Under 1,000 1,000-1,499 1,500-2,499 2,500 and over Not stated Number of live births All 645,887 3,217 4,832 40,739 594,930 2,169 Under 24 647 605 5 2 15 20 24-27 2,431 1,795 507 24 71 34 28-31 5,825 648 2,943 1,952 239 43 32-36 39,538 61 1,211 20,536 17,594 136 37 and over 592,158 73 112 17,872 572,373 1,728 All with known gestational age 640,599 3,182 4,778 40,386 590,292 1,961 Low gestational age inconsistent with birth weight 100 0 8 15 65 12 Gestational age not stated 4,315 26 44 311 3,925 9 Not linked to NN4B record 873 9 2 27 648 187 Percentage of live births with known gestational age Under 24 0.1 19.0 0.1 0.0 0.0 1.0 24-27 0.4 56.4 10.6 0.1 0.0 1.7 28-31 0.9 20.4 61.6 4.8 0.0 2.2 32-36 6.2 1.9 25.3 50.8 3.0 6.9 Under 37 7.6 97.7 97.7 55.7 3.0 11.9 Percentage of all live births Gestational age not stated 0.7 0.8 0.9 0.8 0.7 0.4 Not linked to NN4B record 0.1 0.3 0.0 0.1 0.1 8.6 Source: Office for National Statistics