Investigating the effect of social networking site use on mental health in an 18–34 year-old general population; a cross-sectional study using the 2016 Scania Public Health Survey

Table 3 Synergistic interaction effects between number of SNS contacts and PES on poor mental health among females

Category	Total N (% of valid total)	Cases N (% within category)	OR (95% CI)
0–599 contacts & high emotional support	530 (64.2)	233 (44.0)	1 (ref)
600–999 contacts & high emotional support	80 (9.7)	48 (60.0)	1.75 (1.08–2.85)*
0–599 contacts & low emotional support	198 (24.0)	122 (61.6)	2.01 (1.43–2.81)*
600–999 contacts & low emotional support	18 (2.2)	15 (83.3)	6.07 (1.73–21.33)*
Total	826 (100)^b	418 (50.6)	SI = 2.88

Results are presented as total numbers, numbers and percentages of cases of poor mental health within each category, odds ratios (OR) with 95% confidence intervals (95% CI), and the synergy index (SI). Interactions were controlled for age, main occupation and relationship status. Data are gained from the Scania Public Health Cohort 2016. Total number of female Swedish young adults = 826^b. b: Missing values = 38 (4.4%). * Significant result = p < 0.05

ISSN: 1471-2458