Skip to main content

Table 3 Body composition mean values (CI), mean difference (CI) and P-values between DDM and BIA among different age groups

From: Assessing the reliability of FTIR spectroscopy measurements and validity of bioelectrical impedance analysis as a surrogate measure of body composition among children and adolescents aged 8–19 years attending schools in Kampala, Uganda

  Body composition means   
  DDM BIA Mean difference P-value
Children (8–9 years)
 FFM (kg) 23.48 (21.72–25.23) 24.13 (22.10–26.16) −0.657 (−1.474–0.160) 0.1071
 FM (kg) 4.84 (3.90–5.77) 4.18 (3.48–4.88) 0.657 (− 0.160–1.474) 0.1071
 %BF 16.77 (14.66–18.88) 14.61 (12.83–16.39) 2.157 (−0.397–4.711) 0.0920
Young adolescents (10–14 years)
 FFM (kg) 34.11 (32.88–35.34) 33.89 (32.72–35.06) 0.224 (− 0.111–0.559) 0.1876
 FM (kg) 6.29 (5.61–6.96) 6.51 (5.80–7.22) −0.224 (− 0.559–0.111) 0.1876
 %BF 14. 90 (13.74–16.06) 15.34 (14.21–16.45) −0.436 (− 1.239–0.367) 0.2846
Older adolescents (15–19 years)
 FFM (kg) 43.78 (42.00–45.56) 46.62 (45.05–48.19) −2.841 (− 3.983 - -1.699) < 0.0001
 FM (kg) 11.77 (9.97–13.58) 8.93 (7.54–10.32) 2.841 (1.699–3.983) < 0.0001
 %BF 20.43 (17.64–23.71) 15.42 (13.32–17.52) 5.006 (3.068–6.944) < 0.0001