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Table 1 Distribution of subjects by age and gender

From: Weight status of adolescents in secondary schools in port Harcourt using Body Mass Index (BMI)

Age (Years) Males No. (%) Females No. (%) Total χ2 P value
10 15 (3.1) 25 (5.2) 40 2.65 0.10
11 32 (6.7) 27 (5.6) 59 0.43 0.51
12 61 (12.7) 71 (14.8) 132 0.93 0.33
13 60 (12.5) 71 (14.8) 131 1.12 0.29
14 80 (16.6) 81 (16.9) 161 0.01 0.90
15 74 (15.4) 92 (19.2) 166 2.45 0.12
16 54 (11.2) 56 (11.7) 110 0.05 0.82
17 50 (10.4) 35 (7.3) 85 2.04 0.09
18 35 (7.3) 15 (3.1) 50 0.35 0.00*
19 20 (4.2) 6 (1.3) 26 7.69 0.01*
Total 481 (100) 479 (100) 960