Table 1.
Demographics
| Variable | Invisalign aligner (n = 30) | Fixed appliance (n = 30) | p value |
|---|---|---|---|
| Age, years | 32.9±6.9 | 23.6±5.3 | <0.001a |
| Gender | |||
| Female | 20 (66.7) | 21 (70.0) | |
| Male | 10 (33.3) | 9 (30.0) | 0.781 |
| Governorate | |||
| Capital | 17 (56.7) | 12 (40.0) | 0.269b |
| Hawally | 11 (36.7) | 12 (40.0) | |
| Others | 2 (6.7) | 6 (20.0) | |
| Educational level | |||
| College and above | 29 (96.7) | 24 (80.0) | 0.103b |
| High school | 1 (3.3) | 6 (20.0) | |
| Monthly income | |||
| KWD <1,000 | 6 (20.0) | 7 (23.3) | 0.432b |
| KWD 1,000−2,000 | 13 (43.3) | 17 (56.7) | |
| KWD >2,000 | 11 (36.7) | 6 (20.0) |
Data are presented as n (%) or mean ± SD as appropriate. KWD 1,000 is about USD 3,297.07.
a
t test used to obtain p value.
b
Fisher's exact test used to obtain p value.