Table 4. The relationship between the side affected by BPPV and the habitual sleep position.
| Sleep position | Diagnosis | Total (%) | |||||||||
| Left side | Right side | ||||||||||
| P | L | PL | S | Total (%) | P | L | PL | S | Total (%) | ||
| Left side | 11 | 8 | 0 | 1 | 20(64.5) | 8 | 2 | 1 | 0 | 11(35.5) | 31(100) |
| Right side | 15 | 1 | 0 | 0 | 16(29.1) | 27 | 4 | 8 | 0 | 39(70.9) | 55(100) |
| Supine | 5 | 4 | 0 | 0 | 9(45.0) | 9 | 2 | 0 | 0 | 11(55.0) | 20(100) |
| Random | 9 | 7 | 1 | 1 | 18(40.9) | 20 | 4 | 2 | 0 | 26(59.1) | 44(100) |
| Total | 40 | 20 | 1 | 2 | 63(42.0) | 64 | 12 | 11 | 0 | 87(58.0) | 150(100) |
P, posterior canal BPPV; L, lateral canal BPPV; PL, posterior canal BPPV and lateral canal BPPV; S, superior canal BPPV.
P<0.05, Chi-square test). There was a statistically significant correlation between the habitual sleeping side and the side affected by BPPV (