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Charts list postmenstrual age in exact weeks from 27 to 64 and give weight in kilograms and length in centimeters across selected centiles. Reported centiles include 3rd, 5th, 10th, 50th, 90th, 95th, and 97th, supporting standardized growth assessment across gestational-equivalent ages. The document includes authorship and publication attribution to University of Oxford and Lancet Global 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(exact weeks) | Centiles |  |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- | --- |\n|  | 3rd 5th 10th 50th 90th 95th 97th |  |  |  |  |  |  |\n| 27 | 0.45 | 0.48 | 0.51 | 0.67 | 0.88 | 0.95 | 0.99 |\n| 28 | 0.57 | 0.60 | 0.64 | 0.83 | 1.07 | 1.15 | 1.20 |\n| 29 | 0.70 | 0.74 | 0.79 | 1.00 | 1.27 | 1.37 | 1.43 |\n| 30 | 0.85 | 0.88 | 0.94 | 1.19 | 1.50 | 1.60 | 1.67 |\n| 31 | 1.00 | 1.04 | 1.11 | 1.39 | 1.73 | 1.84 | 1.92 |\n| 32 | 1.17 | 1.21 | 1.29 | 1.60 | 1.98 | 2.10 | 2.18 |\n| 33 | 1.34 | 1.39 | 1.47 | 1.81 | 2.23 | 2.36 | 2.46 |\n| 34 | 1.51 | 1.57 | 1.66 | 2.04 | 2.49 | 2.64 | 2.74 |\n| 35 | 1.70 | 1.76 | 1.86 | 2.26 | 2.75 | 2.91 | 3.02 |\n| 36 | 1.88 | 1.95 | 2.06 | 2.50 | 3.02 | 3.19 | 3.31 |\n| 37 | 2.07 | 2.14 | 2.26 | 2.73 | 3.29 | 3.48 | 3.60 |\n| 38 | 2.26 | 2.34 | 2.46 | 2.96 | 3.57 | 3.76 | 3.89 |\n| 39 | 2.45 | 2.53 | 2.67 | 3.20 | 3.84 | 4.04 | 4.18 |\n| 40 | 2.64 | 2.73 | 2.87 | 3.43 | 4.11 | 4.32 | 4.47 |\n| 41 | 2.82 | 2.92 | 3.07 | 3.66 | 4.38 | 4.60 | 4.76 |\n| 42 | 3.01 | 3.11 | 3.27 | 3.89 | 4.64 | 4.88 | 5.04 |\n| 43 | 3.19 | 3.30 | 3.46 | 4.12 | 4.90 | 5.15 | 5.32 |\n| 44 | 3.37 | 3.48 | 3.66 | 4.34 | 5.16 | 5.42 | 5.59 |\n| 45 | 3.55 | 3.66 | 3.84 | 4.56 | 5.41 | 5.68 | 5.86 |\n| 46 | 3.72 | 3.84 | 4.03 | 4.78 | 5.66 | 5.94 | 6.13 |\n| 47 | 3.89 | 4.01 | 4.21 | 4.99 | 5.90 | 6.19 | 6.39 |\n| 48 | 4.06 | 4.18 | 4.39 | 5.19 | 6.14 | 6.44 | 6.64 |\n| 49 | 4.22 | 4.35 | 4.56 | 5.39 | 6.37 | 6.68 | 6.89 |\n| 50 | 4.37 | 4.51 | 4.73 | 5.59 | 6.60 | 6.92 | 7.13 |\n| 51 | 4.52 | 4.66 | 4.89 | 5.77 | 6.82 | 7.15 | 7.37 |\n| 52 | 4.67 | 4.82 | 5.05 | 5.96 | 7.03 | 7.37 | 7.60 |\n| 53 | 4.81 | 4.96 | 5.20 | 6.14 | 7.24 | 7.59 | 7.83 |\n| 54 | 4.95 | 5.11 | 5.35 | 6.31 | 7.45 | 7.80 | 8.04 |\n| 55 | 5.09 | 5.24 | 5.50 | 6.48 | 7.64 | 8.01 | 8.26 |\n| 56 | 5.22 | 5.38 | 5.64 | 6.65 | 7.83 | 8.21 | 8.46 |\n| 57 | 5.34 | 5.51 | 5.77 | 6.80 | 8.02 | 8.41 | 8.66 |\n| 58 | 5.47 | 5.63 | 5.90 | 6.96 | 8.20 | 8.59 | 8.86 |\n| 59 | 5.58 | 5.76 | 6.03 | 7.11 | 8.38 | 8.78 | 9.05 |\n| 60 | 5.70 | 5.87 | 6.15 | 7.25 | 8.55 | 8.96 | 9.23 |\n| 61 | 5.81 | 5.99 | 6.27 | 7.39 | 8.71 | 9.13 | 9.41 |\n| 62 | 5.92 | 6.10 | 6.39 | 7.53 | 8.87 | 9.30 | 9.58 |\n| 63 | 6.02 | 6.20 | 6.50 | 7.66 | 9.03 | 9.46 | 9.75 |\n| 64 | 6.12 | 6.31 | 6.61 | 7.79 | 9.18 | 9.62 | 9.91 |\n\n© University of Oxford  \nVillar et al.  \nLancet Glob Health 2015;3:e681-91  \n© University of Oxford Villar et a l. -Lancet Glob Health 20 15;3 : e68 1 91  \nWeight (cm)  \n27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 10.5  \n10.0  \n9.5  \n9.0  \n8.5  \n8.0  \n7.5  \n7.0  \n6.5  \n6.0  \n5.5  \n5.0  \n4.5  \n4.0  \n3.5  \n3.0  \n2.5  \n2.0  \n1.5  \n1.0  \n0.5  \n0.0  \n27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64  \nPost menstrual age (weeks)  \n\n|  |\n| --- |\n| 97th\u003Cbr>90th\u003Cbr>50th\u003Cbr>10th\u003Cbr>3rd |\n\n10.5  \n10.0  \n9.5  \n9.0  \n8.5  \n8.0  \n7.5  \n7.0  \n6.5  \n6.0  \n5.5  \n5.0  \n4.5  \n4.0  \n3.5  \n3.0  \n2.5  \n2.0  \n1.5  \n1.0  \n0.5  \n0.0  \nWeight (cm)  \nINTERGROWTH-21st  \nInternational Postnatal Growth Standards for Preterm Infants  \nWeight (Boys)  \nInternational Postnatal Growth Standards  \nfor Preterm Infants  \nINTERGROWTH-21st  \nLength (cm) Boys  \n| Postmenstrual age (exact weeks) | Centiles |  |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- | --- |\n|  | 3rd 5th 10th 50th 90th 95th 97th |  |  |  |  |  |  |\n| 27 | 28.7 | 29.2 | 29.9 | 32.7 | 35.7 | 36.7 | 37.3 |\n| 28 | 30.7 | 31.1 | 31.9 | 34.6 | 37.5 | 38.4 | 39.0 |\n| 29 | 32.5 | 33.0 | 33.7 | 36.3 | 39.2 | 40.0 | 40.6 |\n| 30 | 34.3 | 34.7 | 35.4 | 38.0 | 40.8 | 41.6 | 42.2 |\n| 31 | 36.0 | 36.4 | 37.1 | 39.6 | 42.3 | 43.1 | 43.7 |\n| 32 | 37.5 | 38.0 | 38.7 | 41.1 | 43.8 | 44.6 | 45.1 |\n| 33 | 39.0 | 39.5 | 40.1 | 42.6 | 45.2 | 46.0 | 46.5 |\n| 34 | 40.5 | 40.9 | 41.5 | 44.0 | 46.5 | 47.3 | 47.8 |\n| 35 | ","cbCaigYzSmSvfmaB","https://ap.wps.com/l/cbCaigYzSmSvfmaB","pdf",29572871,32,"English","# Weight (kg) - Boys\n# Length (cm) - Boys","[{\"question\":\"What populations do the centile tables cover?\",\"answer\":\"The tables are for preterm infants, specifically boys, using postmenstrual age as the reference.\"},{\"question\":\"Which centiles are included for weight and length?\",\"answer\":\"Both weight and length tables list centiles at 3rd, 5th, 10th, 50th, 90th, 95th, and 97th.\"},{\"question\":\"How is the age scale defined in the tables?\",\"answer\":\"Age is expressed as postmenstrual age in exact weeks, ranging from 27 to 64.\"}]","International Postnatal Growth Standards for Preterm Infants - INTERGROWTH-21st - Weight and Length (Boys) Centile Tables | PDF",1791839843]