Table 3. Influence of age subdivided in three age groups at three time points on the parameters of BWBP.
| parameter | T1 | T2 | T3 | T1 | T2 | T3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A1 | A2 | A3 | A1 | A2 | A3 | A1 | A2 | A3 | A1-A2 p | A1-A3 p | A2-A3 p | A1-A2 p | A1-A3 p | A2-A3 p | A1-A2 p | A1-A3 p | A2-A3 p | |
| RR (breaths/min) | 92.8(76.58, 109.1) | 68.8 (46.29, 91.4) | 45.7 (19.93, 71.4) | 93.7 (77.47, 110.0) | 64.4 (41.83, 87.0) | 37.9 (12.21,63.7) | 89.2 (72.96, 105.5) | 59.2 (36.63, 81.8) | 34.9 (9.22, 60.7) | 0.2086 | 0.0067 | 0.3792 | 0.0965 | 0.001 | 0.283 | 0.0864 | 0.0014 | 0.3466 |
| Ti (s) | 0.325 (0.250, 0.400) | 0.416 (0.311, 0.520) | 0.600 (0.481, 0.718) | 0.330 (0.255, 0.405) | 0.465 (0.361, 0.569) | 0.701 (0.582, 0.819) | 0.342 (0.267, 0.417) | 0.508 (0.404, 0.612) | 0.750 (0.631, 0.869) | 0.3523 | <0.001 | 0.0581 | 0.0985 | <0.001 | 0.0096 | 0.0296 | <0.001 | 0.0077 |
| Te (s) | 0.453 (0.16, 0.591) | 0.623 (0.432, 0.813) | 0.967 (0.750, 1.184) | 0.459 (0.322, 0.597) | 0.741 (0.551, 0.932) | 1.127 (0.909, 1.344) | 0.491 (0.354, 0.629) | 0.806 (0.615, 0.996) | 1.187 (0.970, 1.405) | 0.3337 | <0.001 | 0.0510 | 0.0491 | <0.001 | 0.0241 | 0.0235 | <0.001 | 0.0260 |
| TV/BW (ml/kg) | 3.56 (2.91, 4.20) | 4.57 (3.68, 5.46) | 5.44 (4.43, 66.46) | 3.33 (2.69, 3.98) | 4.55 (3.66, 5.44) | 5.63 (4.61, 6.64) | 3.37 (2.73, 4.01) | 4.74 (3.85, 5.63) | 5.90 (4.89, 6.92) | 0.1689 | 0.0060 | 0.4117 | 0.0759 | <0.001 | 0.2645 | 0.0384 | <0.001 | 0.2106 |
| MV/BW (ml/min/kg) | 291 (258, 324) | 276 (230 322) | 229 (177, 282) | 269 (236, 302) | 245 (199, 291) | 193 (141, 246) | 262 (229, 295) | 235 (189, 281) | 191 (139, 243) | 0.8696 | 0.1269 | 0.3847 | 0.6845 | 0.0436 | 0.3115 | 0.6178 | 0.0637 | 0.4309 |
| PIF/BW (ml/s/kg) | 16.9 (15.4, 18.5) | 17.3 (15.1, 19.4) | 14.6 (12.2, 17.1) | 15.7 (14.2, 17.3) | 15.9 (13.7, 18.0) | 12.8 (10.4, 15.3) | 15.5 (13.9, 17.0) | 15.5 (13.3, 17.6) | 12.8 (10.4, 15.3) | 0.9677 | 0.2617 | 0.2503 | 0.9947 | 0.1225 | 0.1624 | 1.00 | 0.1811 | 0.2594 |
| PEF/BW (ml/s/kg) | 11.26 (9.83, 12.7) | 10.43 (8.45, 12.4) | 9.23 (6.97, 11.5) | 10.76 (9.33, 12.2) | 9.27 (7.29, 11.3) | 7.96 (5.70, 10.2) | 10.42 (8.99, 11.9) | 9.05 (7.06, 11.0) | 8.06 (5.80, 10.3) | 0.7868 | 0.2998 | 0.7144 | 0.4572 | 0.100 | 0.6682 | 0.5133 | 0.1951 | 0.7975 |
| Tr (ms) | 0.258 (0.189, 0.328) | 0.347 (0.251, 0.444) | 0.513 (0.403, 0.623) | 0.258 (0.188, 0.327) | 0.406 (0.310, 0.503) | 0.585 (0.475, 0.695) | 0.271 (0.202, 0.341) | 0.436 (0.339, 0.532) | 0.618 (0.508, 0.728) | 0.3053 | <0.001 | 0.0674 | 0.0381 | <0.001 | 0.0429 | 0.0185 | <0.001 | 0.0382 |
| PAU (unitless) | 0.760 (0.709, 0.811) | 0.793 (0.721, 0.864) | 0.900 (0.819, 0.981) | 0.778 (0.727, 0.830) | 0.807 (0.736, 0.878) | 0.944 (0.863, 1.025) | 0.779 (0.728, 0.830) | 0.839 (0.768, 0.910) | 0.955 (0.874, 1.036) | 0.7482 | 0.0116 | 0.1224 | 0.7978 | 0.0020 | 0.0339 | 0.3796 | <0.001 | 0.0862 |
| Penh (unitless) | 0.552 (0.504, 0.600) | 0.515 (0.448, 0.581) | 0.609 (0.534, 0.785) | 0.577 (0.529, 0.625) | 0.508 (0.441, 0.574) | 0.652 (0.576, 0,728) | 0.575 (0.528, 0.623) | 0.527 (0.461, 0.594) | 0.665 (0.589, 0.741) | 0.6441 | 0.4253 | 0.1578 | 0.2195 | 0.2343 | 0.0142 | 0.4805 | 0.1237 | 0.0203 |
| PEF/EF50 (unitless) | 1.13 (1.08, 1.18) | 1.16 (1.08, 1.23) | 1.25 (1.17, 1.34) | 1.15 (1.10, 1.20) | 1.17 (1.10, 1.25) | 1.33 (1.25, 1.42) | 1.16 (1.11, 1.21) | 1.19 (1.12, 1.27) | 1.35 (1.26, 1.43) | 0.8561 | 0.0416 | 0.1987 | 0.8447 | <0.001 | 0.0119 | 0.7213 | <0.001 | 0.0190 |
Data for each age group and time period are presented as means with lower confidence limit and upper confidence limit. The confidence interval was set at 95%. The p-values for the comparisons of the measurement results as a dependency of each age group at each time point are shown in the last nine columns. Values in bold indicate p<0.05.
A1 = 1–2 years, A2 = 3–7 years and A3 = 8–16 years.