Table 1. Comparison between developmental age of Egyptian and Baroda charts at 50% and 97% pass level.
| Age category in months | DA 50% | P value | DA 97% | P value | ||
|---|---|---|---|---|---|---|
| BARODA | EGYPTIAN | BARODA | EGYPTIAN | |||
| 1.0 | 0.48 ± 0.405 | 0.86 ± 0.284 |
t = 8.874 p = 0.000* |
1.80 ± 0.319 | 1.53 ± 0.339 |
t = 22.844 p = 0.000* |
| 2.0 | 2.23 ± 0.697 | 2.73 ± 0.751 |
t = 35.133 p = 0.000* |
4.12 ± 0.955 | 3.71 ± 0.848 |
t = 18.920 p = 0.000* |
| 3.0 | 2.45 ± 0.540 | 3.00 ± 0.571 |
t = 47.364 p = 0.000* |
4.48 ± 0.744 | 4.00 ± 0.631 |
t = 22.862 p = 0.000* |
| 4.0 | 3.87 ± 0.896 | 4.48 ± 0.895 |
t = 55.874 p = 0.000* |
6.18 ± 0.999 | 5.67 ± 1.027 |
t = 24.461 p = 0.000* |
| 5.0 | 4.26 ± 0.779 | 4.89 ± 0.768 |
t = 73.817 p = 0.000* |
6.64 ± 0.795 | 6.15 ± 0.873 |
t = 22.117 p = 0.000* |
| 6.0 | 6.25 ± 0.812 | 7.00 ± 1.018 |
t = 14.777 p = 0.000* |
8.89 ± 0.986 | 8.55 ± 1.055 |
t = 15.113 p = 0.000* |
| 7.0 | 6.30 ± 0.974 | 7.13 ± 1.222 |
t = 13.742 p = 0.000* |
8.95 ± 1.206 | 8.64 ± 1.287 |
t = 13.864 p = 0.000* |
| 8.0 | 7.29 ± 0.844 | 8.40 ± 1.012 |
t = 15.891 p = 0.000* |
10.17 ± 1.015 | 9.97 ± 1.124 |
t = 7.724 p = 0.000* |
| 9.0 | 8.10 ± 1.077 | 9.16 ± 1.198 |
t = 24.003 p = 0.000* |
11.11 ± 1.250 | 11.00 ± 1.390 |
t = 3.880 p = 0.000* |
| 10.0 | 9.55 ± 0.835 | 10.81 ± 1.016 |
t = 46.485 p = 0.000* |
12.85 ± 1.045 | 12.92 ± 1.143 |
t = 3.012 p = 0.000* |
| 11.0 | 10.66 ± 1.077 | 12.16 ± 1.288 |
t = 47.653 p = 0.000* |
14.27 ± 1.350 | 14.47 ± 1.518 |
t = 5.337 p = 0.000* |
| 12.0 | 11.30 ± 1.144 | 12.92 ± 1.332 |
t = 57.061 p = 0.000* |
15.06 ± 1.379 | 15.35 ± 1.581 |
t = 7.141 p = 0.000* |
| 13.0 | 11.49 ± 1.408 | 12.54 ± 1.625 |
t = 14.308 p = 0.000* |
15.06 ± 1.705 | 15.42 ± 1.809 |
t = 10.663 p = 0.000* |
| 14.0 | 12.34 ± 1.403 | 13.24 ± 1.637 |
t = 10.463 p = 0.000* |
15.84 ± 1.809 | 16.33 ± 1.862 |
t = 12.790 p = 0.000* |
| 15.0 | 13.13 ± 1.396 | 14.28 ± 1.733 |
t = 15.038 p = 0.000* |
17.03 ± 2.161 | 17.49 ± 1.975 |
t = 10.424 p = 0.000* |
| 16.0 | 14.13 ± 1.555 | 15.15 ± 1.924 |
t = 14.768 p = 0.000* |
18.42 ± 2.580 | 18.78 ± 2.096 |
t = 4.107 p = 0.000* |
| 17.0 | 15.31 ± 1.656 | 16.64 ± 1.771 |
t = 26.917 p = 0.000* |
20.28 ± 2.871 | 20.40 ± 2.002 |
t = 0.873 p = 0.387 NS |
| 18.0 | 15.88 ± 1.606 | 17.44 ± 1.893 |
t = 22.052 p = 0.000* |
21.18 ± 2.525 | 20.99 ± 1.726 |
t = 1.259 p = 0.215 |
| 19.0 | 17.07 ± 1.544 | 18.24 ± 1.712 |
t = 15.385 p = 0.000* |
22.93 ± 2.267 | 22.51 ± 1.827 |
t = 2.888 p = 0.006* |
| 20.0 | 17.89 ± 1.946 | 19.20 ± 2.423 |
t = 11.169 p = 0.000* |
23.78 ± 2.770 | 23.14 ± 2.249 |
t = 3.621 p = 0.001* |
| 21.0 | 17.94 ± 1.705 | 19.20 ± 2.155 |
t = 11.397 p = 0.000* |
24.04 ± 2.102 | 23.59 ± 2.092 |
t = 3.359 p = 0.001* |
| 22.0 | 18.08 ± 1.687 | 19.40 ± 2.188 |
t = 11.174 p = 0.000* |
24.25 ± 2.262 | 23.55 ± 2.031 |
t = 4.320 p = 0.000* |
| 23.0 | 18.43 ± 1.932 | 19.92 ± 2.700 |
t = 9.816 p = 0.000* |
24.08 ± 2.358 | 23.74 ± 2.326 |
t = 3.461 p = 0.001* |
| 24.0 | 19.19 ± 1.671 | 21.02 ± 2.692 |
t = 10.816 p = 0.000* |
25.18 ± 2.484 | 24.61 ± 2.198 |
t = 4.316 p = 0.000* |
| 25.0 | 19.40 ± 1.525 | 21.02 ± 2.379 |
t = 9.360 p = 0.000* |
25.31 ± 1.969 | 25.25 ± 2.104 |
t = 1.250 p = 0.218 NS |
| 26.0 | 19.42 ± 1.496 | 21.13 ± 2.477 |
t = 9.644 p = 0.000* |
25.33 ± 1.674 | 25.33 ± 2.168 |
t = 1.226 p = 0.226 NS |
| 27.0 | 20.20 ± 1.145 | 22.43 ± 2.296 |
t = 11.880 p = 0.000* |
25.78 ± 1.954 | 26.37 ± 1.764 |
t = 0.709 p = 0.482 NS |
| 28.0 | 20.19 ± 1.331 | 22.38 ± 2.407 |
t = 10.940 p = 0.000* |
25.96 ± 1.846 | 26.53 ± 1.930 |
t = 3.516 p = 0.001* |
| 29.0 | 20.45 ± 1.306 | 23.10 ± 2.337 |
t = 13.136 p = 0.000* |
26.76 ± 1.732 | 27.12 ± 1.914 |
t = 3.649 p = 0.001* |
| 30.0 | 21.03 ± 0.969 | 24.37 ± 1.549 |
t = 30.542 p = 0.000* |
24.94 ± 3.203 | 27.35 ± 1.857 |
t = 0.837 p = 0.411 NS |