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

Table 3 Number, percent and odds ratio of NSSI by level of parent-child relationship and PMPU in females and males, and the sex ratio

Variables	Females		Males		Ratio of two odds ratios in girls versus boys
Variables	n(%)	OR(95%CI)^c	n(%)	OR(95%CI)^c	ROR ^#
FCR
High	1526(81.4)	1.00	1701(81.4)	1.00	1.00
Low	348(18.6)	1.58(1.38–1.82)^*	389(18.6)	1.50(1.32–1.71)^*	1.12(0.94–1.34)
MCR
High	1332(71.1)	1.00	1456(69.7)	1.00
Low	542(28.9)	1.39(1.22–1.58)^*	634(30.3)	1.51(1.35–1.70)^*	0.90(0.77–1.06)
PMPU
No	1156(61.7)	1.00	1337(64.0)	1.00
Yes	718(38.3)	2.15(1.91–2.43)^*	753(36.0)	1.67(1.50–1.87)^*	1.24(1.06–1.44)^*

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

ISSN: 1471-244X