Table 1.
Results per subject for the group mean. minimum and maximum values. and the standard deviation for the f0 at ages four. five and six years.
| Age |
Age |
Age |
|||||||
|---|---|---|---|---|---|---|---|---|---|
| Measurements | years: month | f0 in Hz | Interval * | years: month | f0 in Hz | Interval * | years: month | f0 in Hz | Interval * |
| 04:00 | 230.44 | below | 05:00 | 237.46 | below | 06:01 | 231.1 | below | |
| 04:01 | 255.4 | below | 05:01 | 207.15 | below | 06:01 | 233.08 | below | |
| 04:02 | 238.79 | below | 05:02 | 250.67 | within | 06:02 | 300.63 | within | |
| 04:04 | 311.36 | within | 05:04 | 298.38 | within | 06:04 | 233.33 | below | |
| 04:09 | 267.86 | within | 05:06 | 248.45 | within | 06:08 | 246.22 | below | |
| 04:11 | 238.97 | below | 05:06 | 229.83 | below | within | |||
| 04:11 | 242.6 | below | 05:08 | 262.05 | within | ||||
| 05:08 | 245.65 | below | |||||||
| 05:09 | 238.32 | below | |||||||
| 05:11 | 257.88 | within | |||||||
| 05:11 | 309.1 | within | |||||||
| Mean | 255.06 | below | 253.18 | within | 248.87 | within | |||
| Minimum | 230.44 | 207.15 | 231.1 | ||||||
| Maximum | 311.37 | 309.1 | 300.63 | ||||||
| Standard deviation | 27.75 | 29.13 | 29.55 |
*
Normal interval established based on the mean values in other studies for this age range