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Table 2 Mean height and weight of boys compared with subjects from previous Zambian study

From: Evaluation of the nutritional status of rural children living in Zambia

Age n 2011–2012, mean (SD) n 1993a, mean (SD) n 1957–1958b, mean (SD)
Boy’s height
 2 40 84.6 (5.4) 35 81.1 (3.6)*   
 3 31 91.5 (6.5) 33 87.2 (4.5)*   
 4 38 101.6 (7.1) 26 94.5 (3.4)*   
 5 32 108.2 (6.3) 40 100.6 (4.7)*   
 6 24 112.8 (7.1) 35 107.7 (4.4)*   
 7 25 116.6 (7.4) 54 113.2 (7.1)* 3 129.8 (5)*
 8 24 122.6 (5.8) 61 116.9 (5.6)* 2 124.2 (2.9)*
 9 23 125.1 (6.1) 109 124.7 (6.9) 25 124.9 (6.6)
 10 24 129.3 (5.7) 61 129 (6.9) 15 127.7 (4.6)
 11 50 135.6 (8.6) 49 131.8 (5.3)* 7 132.1 (7.1)*
 12 30 140.6 (8.6) 71 136.9 (7.2)* 34 135.7 (8.5)*
 13 32 145.5 (10.4) 48 137.7 (6.6)* 2 142.3 (9.2)*
 14 50 150.0 (9.4) 48 144.8 (8.0)*   
 15 47 156.0 (9.1) 26 152.7 (9.1)*   
 16 33 160.0 (8.4) 44 157.5 (10.0)   
 17 30 163.4 (9.0) 69 161.8 (8.1)   
 18 29 167.5 (6.0) 18 165.8 (6.7)   
 19 14 168.9 (7.3) 30 166.4 (5.6)   
Boy’s weight
 2 40 12.5 (1.5) 35 10.4 (1.2)*   
 3 31 14.7 (2.0) 33 12.5 (1.6)*   
 4 38 16.1 (2.3) 26 13.9 (1.3)*   
 5 32 18.5 (2.0) 40 14.8 (1.5)*   
 6 24 19.7 (3.2) 35 17 (2.2)*   
 7 25 21.0 (2.8) 54 19.2 (2.8)* 3 26.5 (1.4)*
 8 24 23.7 (3.6) 61 20.6 (2.9)* 2 23.4 (3.5)
 9 23 24.7 (3.5) 109 23.2 (3.1)* 25 26 (4.9)
 10 24 25.8 (2.6) 61 25.5 (3.9) 15 25.2 (2.2)
 11 50 29.5 (6.1) 49 26.5 (2.9)* 7 27.8 (3.8)*
 12 30 33.1 (4.8) 71 30.3 (5.0)* 34 31.6 (6.9)
 13 32 34.8 (7.1) 48 30.4 (4.4)* 2 33.5 (5.9)
 14 50 38.6 (7.3) 48 33.7 (5.5)*   
 15 47 43.9 (7.6) 26 39.6 (6.8)*   
 16 33 48.0 (7.6) 44 44.2 (9.7)*   
 17 30 52.6 (9.6) 69 49.7 (7.9)*   
 18 29 57.3 (5.8) 18 53.5 (7.5)*   
 19 14 59.4 (5.6) 30 54.6 (8.2)*   
  1. aGillet [6]
  2. bGillet and Tobias [7]
  3. *P < 0.05, by Z test