Table 4.

Correlations of PHQ‐9 with criteria measures by gender and age group subsamples

	Whole sample	Male	Female	Aged 11–12	Aged 13	Aged 14	Aged 15	Aged 16	Aged 17
Self‐esteem	−.593	−.581	−.601	−.601	−.602	−.580	−.602	−.590	−.578
Mastery	−.600	−.591	−.605	−.593	−.617	−.569	−.601	−.608	−.588
Anxiety	.791	.795	.784	.786	.795	.793	.783	.778	.792

Note: All P values are <.001.

Abbreviation: PHQ‐9, nine‐item Patient Health Questionnaire.