Table 3.
Descriptive statistics (mean values and corresponding standard deviations) and measures of agreement by age level for males between the southern and northern Chinese.
| Age range | n | CA | DA | CA-DA | LoA | SEM |
|---|---|---|---|---|---|---|
| 3.00–3.99 | 14 | 3.72 (0.21) | 3.91 (0.28) | −0.19 | (−0.74, 0.36) | 0.24 |
| 4.00–4.99 | 15 | 4.41 (0.30) | 4.38 (0.29) | 0.03 | (−0.77, 0.83) | 0.28 |
| 5.00–5.99 | 12 | 5.47 (0.36) | 5.57 (0.55) | −0.10 | (−0.90, 0.71) | 0.29 |
| 6.00–6.99 | 10 | 6.41 (0.22) | 6.48 (0.63) | −0.07 | (−1.23, 1.09) | 0.40 |
| 7.00–7.99 | 13 | 7.49 (0.34) | 7.47 (0.68) | 0.02 | (−1.09, 1.14) | 0.39 |
| 8.00–8.99 | 10 | 8.41 (0.29) | 8.54 (0.55) | −0.13 | (−1.35, 1.10) | 0.43 |
| 9.00–9.99 | 14 | 9.43 (0.33) | 9.53 (0.72) | −0.10 | (−1.46, 1.26) | 0.48 |
| 10.00–10.99 | 10 | 10.35 (0.22) | 10.82 (0.42) | −0.47 | (−1.38, 0.43) | 0.46 |
| 11.00–11.99 | 10 | 11.38 (0.19) | 11.34 (0.66) | 0.04 | (−1.34, 1.42) | 0.47 |
| 12.00–12.99 | 16 | 12.45 (0.30) | 12.52 (0.67) | −0.07 | (−1.43, 1.29) | 0.48 |
| 13.00–13.99 | 10 | 13.30 (0.20) | 13.27 (0.34) | 0.03 | (−0.56, 0.62) | 0.20 |
| 14.00–14.99 | 13 | 14.42 (0.30) | 14.32 (0.87) | 0.10 | (−1.24, 1.45) | 0.47 |
| 15.00–15.99 | 10 | 15.35 (0.29) | 15.83 (1.41) | −0.48 | (−2.96, 1.99) | 0.91 |
| 16.00–16.99 | 10 | 16.33 (0.27) | 16.88 (1.02) | −0.55 | (−2.49, 1.39) | 0.77 |
| 17.00–17.99 | 10 | 17.54 (0.31) | 17.31 (0.87) | 0.23 | (−1.51, 1.97) | 0.62 |
| 18.00–18.99 | 10 | 18.39 (0.31) | 18.62 (1.28) | −0.23 | (−2.84, 2.39) | 0.91 |
| 19.00–19.99 | 10 | 19.45 (0.28) | 19.41 (0.40) | 0.04 | (−0.61, 0.70) | 0.23 |
| Overall | 197 | 11.01 (4.87) | 11.11 (4.93) | −0.10 | (−1.48, 1.28) | 0.50 |
n, number of participants in the corresponding age group; CA, chronological age in years; DA, dental age in years; LoA, limits of agreement; SEM, standard error of mean.