Table 2.
Comparison of baseline characteristics between the M-scoliometer group and the E-scoliometer group.
| Variable | M-scoliometer group (n = 5,697) |
E-scoliometer group (n = 5,890) |
Statistic | p value |
|---|---|---|---|---|
| Sex, n (%) | χ2 = 1.684 | 0.194 | ||
| Male | 2,745 (48.2) | 2,910 (49.4) | ||
| Female | 2,952 (51.8) | 2,980 (50.6) | ||
| Grade distribution, n (%) | χ2 = 2.296 | 0.681 | ||
| Grade 1 | 1,167 (20.5) | 1,151 (19.5) | ||
| Grade 2 | 1,208 (21.2) | 1,248 (21.2) | ||
| Grade 3 | 1,178 (20.7) | 1,211 (20.6) | ||
| Grade 4 | 1,111 (19.5) | 1,170 (19.9) | ||
| Grade 5 | 1,033 (18.1) | 1,110 (18.8) | ||
| Cooperation score | 4.16 ± 0.73 | 4.15 ± 0.72 | Z = −0.884 | 0.377 |
Data are presented as n (%) or mean ± SD. M-scoliometer: manual scoliometer (traditional device); E-scoliometer: electronic scoliometer (smart screening device). Sex and grade distribution were compared using the chi-square (χ2) test. Cooperation score was compared using the Mann–Whitney U test (reported as Z value). p < 0.05 was considered statistically significant.