Table 4. Comparison of nighttime sleep duration (TST in hours) in the present study and Western societies .
| Age group (in years) | Present study |
Bahammam
et al’s study 24 |
Iglowstein
et al’s study 22 |
Ng
et al’s study 23 |
| 4 | 9.8 (1.6) | - | - | - |
| 5 | 9.0 (0.9) | - | - | - |
| 6 | 9.6 (0.7) | 8.8 (1.3) | 10.9 (0.7) | 9.1 (0.98) |
| 7 | 9.6 (0.7) | 8.7 (1.02) | 10.7 (0.7) | 8.9 (0.93) |
| 8 | 8.9 (1.2) | 8.6 (1.01) | 10.4 (0.7) | 8.87 (0.93) |
| 9 | 8.9 (0.8) | 8.5 (1.1) | 10.2 (0.7) | 8.8 (0.95) |
| 10 | 8.4 (1.1) | 8.4 (1.2) | 9.9 (0.6) | 8.72 (0.92) |
| 11 | 8.1 (0.8) | 8.2 (0.9) | 9.6 (0.6) | 8.55 (0.98) |
| 12 | 9.2 (1.0) | 8.0 (1.3) | 9.3 (0.7) | 8.6 (0.98) |
| 13 | 8.1 (1.6) | 7.9 (1.1) | 9.0 (0.7) | - |
| 14 | 9.1 (0.9) | - | - | - |
| 15 | 8.4 (1.0) | - | - | - |
The cells left blank were not reported by the respective authors for that specific age