Association of parent-child relationship quality and problematic mobile phone use with non-suicidal self-injury among adolescents

Table 2 Number, percent and odds ratio of NSSI by level of parent-child relationship and PMPU in the total sample

Variables	N(%)		Model 1	Model 2	Model 3
Variables	NSSI < 1	NSSI ≥ 1	OR(95%CI)^a	OR(95%CI)^b	OR(95%CI)^c
FCR
High	2917(79.8)	737(20.2)	1.0	1.00	1.00
Low	7619(70.2)	3227(29.8)	1.68(1.53–1.84)^*	1.61(1.46–1.76)^*	1.54(1.40–1.69)^*
MCR
High	3867(76.7)	1176(23.3)	1.00	1.00	1.00
Low	6669(70.5)	2788(29.5)	1.38(1.27–1.49)^*	1.40(1.29–1.52)^*	1.45(1.33–1.58)^*
PMPU
No	8067(76.4)	2493(23.6)	1.00	1.00	1.00
Yes	2469(62.7)	1471(37.3)	1.93(1.78–2.09)^*	2.00(1.85–2.17)^*	1.89(1.74–2.05)^*

Note: FCR = father-child relationship; MCR = mother-child relationship; PMPU = problematic mobile phone use; NSSI = non-suicidal self-injury. ^a Unadjusted model; ^b Adjusted for sex, boarding school, single child, grade, residency, family economic, parents’ education level, number of friends. ^c Adjusted for sex, boarding school, single child, grade, residency, family economic, parents’ education level, number of friends, FCR, MCR and PMPU. ^*P < 0.001.

ISSN: 1471-244X