Table 4.
Bland and Altman pair-wise comparison (all values in the table are expressed as percentage unit)
| Equations | Bias | SD | Slope | Intercept | P | Bias-2SD | Bias + 2SD | LL at 20% | UL at 20% | LL at 45% | UL at 45% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| For male | |||||||||||
| Bandana | 17.84 | 9.63 | −0.536 | 37.250 | 0.569 | −1.42 | 37.11 | ||||
| Shaikh | −5.49 | 6.68 | −1.928 | 41.812 | 0.000 | −10.11 | 16.61 | −58.32 | −31.60 | ||
| Goran | −7.47 | 8.58 | −0.706 | 9.139 | 0.363 | −24.62 | 9.68 | ||||
| Slaughter | −10.12 | 6.91 | −1.934 | 32.850 | 0.000 | −12.75 | 1.07 | −61.11 | −47.29 | ||
| Slaughter (white) | −7.75 | 7.12 | −1.837 | 35.248 | 0.002 | −15.73 | 12.73 | −61.67 | −33.21 | ||
| Slaughter (black) | −9.25 | 7.12 | −1.837 | 32.369 | 0.002 | −18.61 | 9.85 | −64.54 | −36.08 | ||
| Brook | −4.59 | 6.94 | −2.028 | 46.083 | 0.000 | −8.37 | 19.41 | −59.08 | −31.30 | ||
| Yuan | −6.50 | 6.76 | −2.009 | 41.762 | 0.000 | −11.93 | 15.09 | −62.16 | −35.14 | ||
| Liu | −10.12 | 6.91 | −1.935 | 32.850 | 0.000 | 6.17 | 7.99 | −68.03 | −40.37 | ||
| Deurenberg (Equation 1) | −9.63 | 6.83 | −1.980 | 34.845 | 0.000 | −18.41 | 8.91 | −67.91 | −40.59 | ||
| Deurenberg (Equation 2) | −8.45 | 6.80 | −2.057 | 38.961 | 0.000 | −15.78 | 11.40 | −67.21 | −40.03 | ||
| For female | |||||||||||
| Bandana | −7.20 | 6.83 | 0.108 | −10.199 | 0.824 | −20.85 | 6.45 | ||||
| Shaikh | −11.99 | 5.29 | −0.951 | 27.023 | 0.000 | −2.57 | 18.59 | −26.34 | −5.18 | ||
| Goran | −11.96 | 4.53 | −0.538 | 1.690 | 0.112 | −21.01 | −2.91 | ||||
| Slaughter | −14.76 | 4.90 | −1.536 | 22.057 | 0.000 | −18.45 | 1.13 | −56.85 | −37.27 | ||
| Slaughter (all female) | −11.08 | 4.76 | −1.284 | 22.078 | 0.000 | −13.13 | 5.91 | −45.24 | −26.20 | ||
| Brook | −11.07 | 4.97 | −1.322 | 23.067 | 0.000 | −13.32 | 6.57 | −46.38 | −26.49 | ||
| Yuan | −10.90 | 5.04 | −1.729 | 33.881 | 0.000 | −10.78 | 9.38 | −54.00 | −33.85 | ||
| Liu | −14.76 | 4.90 | −1.536 | 22.057 | 0.000 | −18.45 | 1.13 | −56.85 | −37.26 | ||
| Deurenberge (Equation 1) | −12.90 | 5.10 | −1.406 | 22.097 | 0.000 | −16.20 | 4.18 | −51.34 | −30.96 | ||
| Deurenberg (Equation 1) | −11.29 | 5.02 | −1.573 | 29.170 | 0.000 | −12.36 | 7.74 | −51.70 | −31.60 | ||
| Durnnin & Wormsley | −5.79 | 5.01 | −0.492 | 6.798 | 0.680 | −15.81 | 4.23 | ||||
| Sloan | −14.59 | 5.28 | −1.839 | 29.654 | 0.000 | −17.68 | 3.42 | −63.67 | −42.57 |
Descriptions and references for the each equation are illustrated in the additional pdf file [see Additional file 1]. Slope, slope of the linear regression analysis between the differences in %FM of the two methods and their average values; intercept, intercept of the linear regression analysis; P, p value of the regression analysis performed between the differences and the average %FM values; Bias-2SD and Bias + 2SD, 95% confidence level of the bias; LL, lower limit; UL, upper limit; 20%, the minimal %FM measured on our infants; 45%, the maximal %FM measured on our infants.