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Table 1 Distributions of socioeconomic, workplace and health-related factors among respondents to online and mailed surveys and telephone interviews as compared to the target population (under 40-year-old employees of the City of Helsinki, Finland)

From: Factors associated with health survey response among young employees: a register-based study using online, mailed and telephone interview data collection methods

 Target populationRespondentsStatistical test for difference (chi-squared)Response rate (95% CI)
N%N% 
Sex
 Women8801774631790.01153 (52, 54)
 Men265823126721 48 (46, 50)
Age
 18–24 years974840670.00242 (39, 45)
 25–29 years303626155926 51 (50, 53)
 30–34 years383533200334 52 (51, 54)
 35–39 years361432193033 53 (52, 55)
Occupational class
 Managers and professionals277824160627<  0.000158 (56, 60)
 Semi-professionals321228187132 58 (57, 60)
 Routine non-manuals430738198234 46 (45, 48)
 Manual workers1162104397 38 (35, 41)
Income
 Highest quartile286625169029<  0.000159 (57, 61)
 3rd293726166828 57 (55, 59)
 2nd279224129722 46 (45, 48)
 Lowest quartile286425124321 43 (42, 45)
Employment sector
 Social and health care4906432546430.88652 (50, 53)
 Education396435203535 51 (50, 53)
 Other258923131722 51 (49, 53)
Contract type
 Permanent3074271566270.71251 (49, 53)
 Temporary838573433273 52 (51, 53)
Job type
 Full time10,158895279900.09352 (51, 53)
 Part-time13011161910 48 (45, 50)
Work arrangement
 Day time7996704245720.01153 (52, 54)
 Shift work341430162928 48 (46, 49)
 Undetermined490240 49 (34, 64)
Years employed by the City of Helsinki*
 less than 1 year154213756130.32749 (47, 52)
 1–5 years522046273746 52 (51, 54)
 more than 5 years462740237840 51 (50, 53)
 unknown701270 39 (27, 51)
Sickness absence (6 months before the data collection)
 No sick leave spells5059442577440.00851 (50, 52)
 From 1 to 3 days274224152126 55 (54, 57)
 From 4 to 14 days268223136423 51 (49, 53)
 15 days or more97694367 45 (42, 48)
Sickness absence (during the data collection = 18 Sep–31 Oct 2017)
 No sick leave spells7893694046690.01451 (50, 52)
 From 1 to 3 days221619119020 54 (52, 56)
 From 4 to 14 days1081956510 52 (49, 55)
 15 days or more2692972 36 (30, 42)
Total numbers11,4591005898100 51 (51, 52)
  1. *computed from the date when the job contract began and the date when data were made
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