Table 1.
Sociodemographic characteristics of the participants
| Variable | All patients n (%) | Fixed appliance
|
Palatal expander
|
P-value |
|---|---|---|---|---|
| n (%) n=220 |
n (%) n=179 |
|||
| Age, mean (SD), years | 18.8 (5.1) | 19.38 (4.95) | 18 (0.39) | 0.007 |
| Sex | 0.018 | |||
| Male | 155 (38.85) | 74 (47.74) | 81 (52.26) | |
| Female | 244 (61.15) | 146 (59.84) | 98 (40.16) | |
| Nationality | 0.022 | |||
| Saudi | 188 (47.12) | 115 (61.17) | 73 (38.83) | |
| Non-Saudi | 211 (52.88) | 105 (49.76) | 106 (50.24) | |
| Education level | 0.075 | |||
| High school and below | 276 (69.17) | 144 (52.17) | 132 (47.83) | |
| Higher than high school | 123 (30.83) | 76 (61.79) | 47 (38.21) |
Abbreviation: SD, standard deviation.