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Bold numbers indicate the highest FSF values.
| Age [years] | Mean FSF±SD / % | |
|---|---|---|
| Women | Men | |
| 20–29 | 3.05±0.49 | 3.74±0.60 |
| 30–39 | 3.75±0.66 | 4.99±1.30 |
| 40–49 | 4.76±1.16 | 5.25±1.97 |
| 50–62 | 4.09±1.26 | 4.79±0.93 |
| 20–62 | 3.91±1.10 | 4.69±1.38 |
