Table 2 Risk factors and alpha angles in the 1st-month follow-up
From: Clinical and sonographic improvement of developmental dysplasia of the hip: analysis of 948 patients
Risk factor (n) | p value | Alpha angle in the 1st-month control (degrees) | p value in multivariable design | |
|---|---|---|---|---|
Under 60 | 60 or over | |||
First clinical status | 0.002 | 0.041 | ||
Ortolan+ (342) | 214 (62.6%) | 128 (37.4%) | ||
Barlow+ (207) | 125 (60.4%) | 82 (39.6%) | ||
Minor looseness (256) | 193 (75.4%) | 63 (24.6%) | ||
Positive family history | 0.597 | 0.299 | ||
Yes (123) | 83 (67.5%) | 40 (32.5%) | ||
No (393) | 255 (64.9%) | 138 (35.1%) | ||
Sex | < 0.001 | 0.007 | 0.009 | |
Boy (228) | 127 (55.7%) | 101 (44.3%) | ||
Girl (591) | 413 (69.9%) | 178 (30.1%) | ||
Treatment method | < 0.001 | < 0.001 | < 0.001 | |
IS (458) | 271 (59.2%) | 107 (40.8%) | ||
DS (149) | 145 (97.3%) | 4 (2.7%) | ||
WW (212) | 124 (58.5%) | 88 (41.5%) | ||
Breech presentation | < 0.001 | 0.002 | 0.123 | |
No (577) | 381 (70%) | 163 (30.0%) | ||
Yes (272) | 158 (58.1%) | 114 (41.9%) | ||
First born | 0.610 | |||
No (101) | 50 (49.5%) | 51 (50.5%) | ||
Yes (165) | 87 (52.7%) | 78 (47.3%) | ||
Birthweight | 0.529 | |||
Under 2500 g (12) | 9 (75.0%) | 3 (25%) | ||
Normal (781) | 512 (65.6%) | 269 (34.4%) | ||
Over 4500 g (19) | 13 (68.4%) | 6 (31.6%) | ||
Gestational age | 0.490 | |||
Preterm (28) | 20 (71.4%) | 8 (28.6%) | ||
37–42 weeks (737) | 482 (65.4%) | 255 (31.6%) | ||
Over 42 weeks (41) | 30 (73.2%) | 11 (26.8%) | ||