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Table 3 X-ray comparisons of ATI 7° and ATI 5° classification for specific age groups

From: The importance of the size of the trunk inclination angle in the early detection of scoliosis in children

6–9 years old
ATI 7° criterion ATI ≥ 7° (N = 20) ATI < 7° (N = 39) p-value
Cobb (ranges) 10–14 (N = 21) 23.8% (N = 5) 76.2% (N = 16) 0.2569
15–20 (N = 22) 31.8% (N = 7) 68.2% (N = 15)
 ≥ 21 (N = 16) 50% (N = 8) 50% (N = 8)
ATI 5° criterion ATI ≥ 5° (N = 40) ATI < 5° (N = 19) p-value
Cobb (ranges) 10–14 (N = 21) 57.1% (N = 12) 42.9% (N = 9) 0.472
15–20 (N = 22) 72.7% (N = 16) 27.3% (N = 6)
 ≥ 21 (N = 16) 75% (N = 12) 25% (N = 4)
10–12 years old
ATI 7° criterion ATI ≥ 7° (N = 18) ATI < 7° (N = 47) p-value
Cobb (ranges) 10–14 (N = 20) 5% (N = 1) 95% (N = 19) 0.0042
15–20 (N = 23) 26.1% (N = 6) 73.9% (N = 17)
 ≥ 21 (N = 22) 50% (N = 11) 50% (N = 11)
ATI 5° criterion ATI ≥ 5° (N = 45) ATI < 5° (N = 20) p-value
Cobb (ranges) 10–14 (N = 20) 55% (N = 11) 45% (N = 9) 0.277
15–20 (N = 23) 73.9% (N = 17) 26.1% (N = 6)
 ≥ 21 (N = 22) 77.3% (N = 17) 22.7% (N = 5)
13–17 years old
ATI 7° criterion ATI ≥ 7° (N = 47) ATI < 7° (N = 45) p-value
Cobb (ranges) 10–14 (N = 15) 13.3% (N = 2) 86.7% (N = 13)  < 0.001
15–20 (N = 20) 35% (N = 7) 65% (N = 13)
 ≥ 21 (N = 57) 66.7% (N = 38) 33.3% (N = 19)
ATI 5° criterion ATI ≥ 5° (N = 86) ATI < 5° (N = 6) p-value
Cobb (ranges) 10–14 (N = 15) 86.7% (N = 13) 13.3% (N = 2) 0.1641
15–20 (N = 20) 90% (N = 18) 10% (N = 2)
 ≥ 21 (N = 57) 96.5% (N = 55) 3.5% (N = 2)