Table 5 Effect of age on HBPs in each skeletal class and breathing pattern
|  | Class I (n = 61) | Class II (n = 65) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mouth breathing (n = 31) | P value | Nasal breathing (n = 30) | P value | Mouth breathing (n = 35) | P value | Nasal breathing (n = 30) | P value | |||||
7–9 years (n = 15) | 10–12 years (n = 16) | 7–9 years (n = 15) | 10–12 years (n = 15) | 7–9 years (n = 19) | 10–12 years (n = 16) | 7–9 years (n = 15) | 10–12 years (n = 15) | |||||
Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | |||||
H-Mea | 39.82 (4.14) | 42.60 (5.61) | 0.129 | 41.56 (4.04) | 42.72 (5.26) | 0.503 | 39.56 (7.01) | 40.3 (5.27) | 0.731 | 38.33 (5.11) | 41.09 (6.57) | 0.209 |
H-EBb | 8.45 (2.71) | 10.08 (3.82) | 0.154 | 7.21 (1.97) | 11.88 (5.04) | 0.007** | 9.82 (3.91) | 7.88 (2.94) | 0.119 | 6.76 (1.99) | 8.66 (2.55) | 0.026* |
C3-Hb | 25.12 (4.04) | 27.61 (3.65) | 0.068 | 24.87 (3.28) | 32.36 (5.06) | 0.00008**** | 25.42 (2.95) | 25.10 (2.52) | 0.973 | 25.68 (3.36) | 27.86 (2.88) | 0.081 |
C3-Meb | 64.62 (4.40) | 70.13 (7.61) | 0.017* | 65.07 (5.38) | 71.90 (5.52) | 0.003** | 64.20 (7.55) | 64.93 (6.68) | 0.596 | 63.46 (6.63) | 65.14 (11.35) | 0.146 |
H-C3Mea | 2.60 (1.88) | 1.21 (4.83) | 0.307 | − 0.99 (4.36) | 2.35 (7.62) | 0.151 | − 1.67 (3.54) | 2.81 (4.16) | 0.001*** | 1.68 (3.17) | 4.11 (4.18) | 0.083 |
H-PNSa | 51.04 (2.31) | 51.97 (5.76) | 0.566 | 46.82 (5.49) | 51.92 (9.21) | 0.076 | 45.80 (4.61) | 53.92 (3.63) | 0.0001**** | 49.54 (2.01) | 53.65 (5.18) | 0.007** |
H-Hb | 15.91 (17.72) | 8.88 (5.71) | 0.322 | 18.68 (9.60) | 15.27 (8.47) | 0.28 | 12.53 (8.66) | 12.74 (8.85) | 0.753 | 17.08 (5.99) | 14.32 (5.34) | 0.319 |
H-Vb | 82.38 (4.41) | 88.45 (6.86) | 0.026* | 75.94 (2.99) | 90.18 (11.34) | 0.00002**** | 77.37 (6.83) | 90.96 (6.21) | 0.00003**** | 81.70 (3.50) | 88.24 (6.92) | 0.007** |