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Table 1 Gender, age and socioeconomic position characteristics 1

From: Social inequalities in changes in health-related behaviour among Slovak adolescents aged between 15 and 19: A longitudinal study

   Measurement point  
   T1 % (N) T2 drop-out % (N) T2 participants % (N) Cohen's w 2
Total   100 (1850) 100 (1006) 100 (844)  
Gender Males 48.6 (899) 53.5 (583) 42.8 (361) 0.107
  Females 51.4 (951) 46.5 (468) 57.2 (483)  
Age Mean (SD) 14.9 (0.62) 18.8 (0.55) 18.8 (0.55)  
Respondents' education level Grammar 23.8 (440) 19.1 (193) 29.3 (247) 0.224
  Specialised secondary 43.4 (802) 41.7 (420) 45.3 (382)  
  Apprentice 32.7 (608) 39.1 (393) 25.5 (215)  
Current employment status Student n.a. n.a. 66.3 (558) n.a.
  Employed n.a. n.a. 12.6 (106)  
  Unemployed n.a. n.a. 21.1 (178)  
Parents' highest occupational level High 29.8 (538) 29.0 (283) 30.8 (255) 0.052
  Medium 36.2 (653) 34.8 (339) 37.9 (314)  
  Low 33.9 (612) 36.2 (353) 31.3 (259)  
Parents' highest education level High 26.0 (477) 25.7 (255) 26.4 (222) 0.042
  Medium 49.7 (910) 48.3 (479) 51.2 (431)  
  Low 24.3 (445) 25.9 (257) 22.4 (188)  
  1. 1 Due to rounding, not all percentages add up to 100%
  2. 2 Cohen's w is a measure of the strength of the effect of a characteristic on the outcome. It is independent from sample size, and is expressed as effect size (ES). It could be interpreted as follows: if w < 0.1 the effect is trivial, if w ranges from 0.1 to 0.3 the effect is small, if w ranges from 0.3 to 0.5 the effect is moderate and if w > 0.5 the effect is large.
  3. 3 ES – Effect size,
  4. n.a. – not available
  5. T1 – baseline measurement
  6. T2 – follow up