Table 3.

Interactions of PA, PMPU and suicide attempt in College Students

Modal	PA × PMPU	β	OR(95%CI)	RERI	AP	SI
Crude	Moderate and above×No		1.00
	Low×No	1.02	2.78 (1.66–4.63)**
	Moderate and above×Yes	1.14	3.12 (2.10–4.65)**
	Low×Yes	2.33	10.26 (6.65–15.82)**	5.36 (1.49–9.23)	0.52 (0.31–0.74)	2.38 (1.39–4.06)
Adjusted	Moderate and above×No		1.00
	Low×No	0.99	2.68 (1.60–4.48)**
	Moderate and above×Yes	1.09	2.98 (2.00–4.45)**
	Low×Yes	2.25	9.51 (6.15–14.73)**	4.85 (1.20–8.50)	0.51 (0.29–0.73)	2.32 (1.34–4.04)

Note: * P < 0.05; ** P < 0.001; OR is odds ratio; CI is confidence interval; RERI is relative excess risk of interaction; AP is attributable proportions; SI is synergy index; PA is Physical activity; PMPU is problematic mobile phone use; Adjusted model controlled gender, grade, only child, parents’ educational level; registered residence, self-reported family economic situation