Table 1.
Association of the PER3-VNTR with (A) Scores of the Composite Scale of Morningness (CSM) and its categorization in morning/neutral/evening chronotypes and (B) Scores of the Epworth Sleep Scale (ESS) and its categorization in High/ Low somnolence.
| PER3-VNTR | Chronotypes | p value | Composite Scale of Morningness Scores Mean (SE) | p value | |||
|---|---|---|---|---|---|---|---|
| Morning Type n (%) |
Neutral Type n (%) |
Evening Type n (%) |
|||||
| Genotypes | 4/4 | 41 (60.3) | 108 (65.9) | 43 (69.4) | 0.58c | 39.55 (0.38) | 0.37a |
| 4/5 | 25 (36.8) | 48 (29.3) | 15 (24.2) | 40.48 (0.63) | |||
| 5/5 | 2 (2.9) | 8 (4.9) | 4 (6.5) | 38.79 (1.56) | |||
| Total | 68 (100) | 164 (100) | 62 (100) | 39.74 (0.32) | |||
| Alleles | 4 | 0.81 | 0.80 | 0.79 | 0.58c | ||
| 5 | 0.19 | 0.20 | 0.21 | ||||