Table 1.
Description of the total data and the split data
| Contents | Field | Calibration | Model building (two‐thirds field + calibration) | Design evaluation (one‐third field) | All |
|---|---|---|---|---|---|
| Subjects, no. | 677 | 113 | 565 | 225 | 790 |
| Dose, g | 30 (6–60) | 30 (30–30) | 30 (6–60) | 30 (6–60) | 30 (6–60) |
| Baby age, mo | 3.4 (2.9–5.5) | 3.3 (2.6–3.7) | 3.4 (2.9–5.4) | 3.3 (2.9–5.5) | 3.4 (2.9–5.5) |
| Baby WT start, kg | 6.4 (5.4–7.3) | 5.9 (5.5–6.4) | 6.2 (5.5–7.2) | 6.3 (5.4–7.4) | 6.3 (5.4–7.2) |
| Baby WT end, kg | 6.7 (5.7–7.5) | 6.2 (5.8–6.7) | 6.5 (5.8–7.4) | 6.6 (5.8–7.6) | 6.5 (5.7–7.4) |
| Mother age, y | 27 (22–31) | 26 (21–30) | 26 (21–31) | 27 (22–31) | 26 (21–31) |
| Mother WT, kg | 58 (51–66) | 52 (49–60) | 56 (50–64) | 58 (53–67) | 57 (51–65) |
| Baby female, % | 31 | 53 | 36 | 28 | 34 |
| Baby male, % | 35 | 47 | 36 | 38 | 36 |
| Baby unknown, % | 34 | 0 | 27 | 34 | 29 |
| IRMS, % | 37 | 0 | 29 | 40 | 32 |
| FTIR, % | 62 | 100 | 71 | 60 | 67 |
| South Africa, % | 19 | 0 | 15 | 19 | 16 |
| Thailand, % | 25 | 0 | 20 | 25 | 22 |
| Kenya, % | 28 | 0 | 23 | 28 | 24 |
| Indonesia, % | 1 | 100 | 20 | 0.5 | 15 |
| Other countries, %a | 27 | 0 | 21 | 27 | 23 |
Row “Dose” is median (range); rows “Baby Age,” “Baby WT Start,” “Baby WT End,” “Mother Age,” and “Mother WT” are median (interquartile range).
FTIR, Fourier‐transformed infrared spectrometry; IRMS, isotope‐ratio mass spectrometry; WT, weight.
Other countries: Sri Lanka, Ghana, India, Guatemala, Chile.