Table 2.
Frequency of masturbation during the past month in Norwegian women and men, by age groups (percent)
| Masturbation frequency | All | < 30 years | 30–39 years | 40–49 years | 50–59 years | 60–69 years | 70 + years | p | Eta squared |
|---|---|---|---|---|---|---|---|---|---|
| Women | |||||||||
| None | 33.7 | 22.5 | 26.4 | 29.7 | 40.3 | 46.0 | 59.4 | < .001 | .97 |
| Once | 18.5 | 16.9 | 16.2 | 16.3 | 20.7 | 23.0 | 21.3 | ||
| 2 or 3 times | 24.4 | 26.3 | 26.6 | 27.4 | 24.8 | 20.6 | 13.8 | ||
| Once a week | 10.1 | 15.3 | 10.2 | 11.8 | 6.9 | 6.3 | 3.1 | ||
| 2 or 3 times a week | 12.0 | 16.1 | 19.3 | 13.7 | 6.9 | 3.6 | 2.5 | ||
| Once a day | 1.1 | 2.5 | 0.8 | 1.1 | 0.3 | 0.4 | 0.0 | ||
| More than once a day | 0.2 | 0.4 | 0.5 | 0.0 | 0.0 | 0.0 | 0.0 | ||
| n = | 1820 | 472 | 383 | 263 | 290 | 252 | 160 | ||
| Men | |||||||||
| None | 15.8 | 4.8 | 5.1 | 6.4 | 14.3 | 27.9 | 42.7 | < .001 | .97 |
| Once | 10.1 | 4.5 | 5.4 | 6.4 | 10.7 | 13.2 | 22.5 | ||
| 2 or 3 times | 19.1 | 15.2 | 14.0 | 19.3 | 21.0 | 29.4 | 19.0 | ||
| Once a week | 15.1 | 14.6 | 17.9 | 16.2 | 19.9 | 11.8 | 7.9 | ||
| 2 or 3 times a week | 29.2 | 40.3 | 40.9 | 36.4 | 28.4 | 15.4 | 7.0 | ||
| Once a day | 8.7 | 17.5 | 13.0 | 12.5 | 4.3 | 1.8 | 0.6 | ||
| More than once a day | 2.0 | 3.1 | 3.7 | 2.8 | 1.3 | 0.4 | 0.3 | ||
| n = | 2069 | 355 | 408 | 327 | 391 | 272 | 316 | ||
One-way ANOVA testing for group differences