TABLE 2.

Statistical comparison of means of quality of life points according to age group (7- to 13-year-olds versus 14- to 17-year-olds) and gender (boys versus girls). Measurements with Finnish children and adolescents (N = 4,776) using KINDL-R instrument

The quality of life	Statistical difference between age group	Statistical difference between gender group
The whole instrument	p < 0.001	p < 0.087
Physical welfare	p < 0.001	p < 0.001
Emotional welfare	p < 0.001	p < 0.132
Self-esteem	p < 0.001	p < 0.001
Family	p < 0.001	p < 0.003
Friends	p < 0.351	p < 0.158
School	p < 0.001	p < 0.732