Addressing sickness absence among adolescents and young adults: an evaluation of the Medical Advice for Sick-reported Students intervention

Table 2 Socio-demographic and lifestyle characteristics of the intervention and control condition at baseline (N = 200)

		Total	Intervention condition	Control Condition	p-value
		N = 200	n = 81	n = 119	p-value
Socio-demographic characteristics
Age in years, mean (SD)	[0]	18.6 (2.0)	18.6 (2.1)	18.6 (2.0)	.941
Female gender, n (%)	[0]	157 (78.5)	60 (74.1)	97 (81.5)	.209
Intermediate vocational education level 4, n (%)^a	[8]	153 (79.7)	56 (70.9)	97 (85.8)	.011
Dutch ethnic background, n (%)	[4]	152 (77.6)	61 (77.2)	91 (77.8)	.926
Living at home with caretaker, n (%)	[1]	177 (88.9)	71 (88.8)	106 (89.1)	.943
Lifestyle characteristics
Current smoking, n (%)	[9]	50 (26.2)	24 (30.0)	26 (23.4)	.308
Binge drinking in past 4 weeks, n (%)^b	[7]	86 (44.6)	39 (48.8)	47 (41.6)	.324
Cannabis use in past 4 weeks, n (%)	[10]	29 (15.3)	12 (15.0)	17 (15.5)	.931

[number of missing answers]. Bold numbers indicate statistical significance (p < 0.05) between the intervention condition and the control condition, calculated using an independent-samples t-test (continuous variables) or a chi-square test (categorical variables)
^aIntermediate vocational education consists of four levels: level 1 assistant training; level 2 basic vocational training; level 3 vocational training; level 4 middle-management training. Level 4 is considered the highest level
^bBinge drinking was defined as consuming 5 or more alcoholic drinks on one occasion

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