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Table 1 Descriptive statistics for employees in companies with an intervention (IA) and employees in companies without an intervention, Controls (Non-IA)

From: Long-term sickness absence among young and middle-aged workers in Norway: the impact of a population-level intervention

  2000 2005
Intervention
N = 105,081 (35.2)
Control
N = 193,609 (64.8)
Intervention
N = 125,360 (35.5)
Control
N = 227,258 (64.5)
  N % N % N % N %
Age
 Mean (SD) 28.9 (2.8) 28.5 (2.8) 33.7 (2.8) 33.6 (2.8)
Sex
 Female 60,959 58 85,691 44 72,318 58 93,777 44
Company size
 Small (0–10 employees) 4572 4 53,915 28 5761 5 68,449 32
 Medium (11–49 employees) 26,384 25 70,529 37 33,122 26 84,858 39
 Large (≥50 employees) 73,000 70 65,152 34 86,474 69 63,985 29
Industry
 Agriculture/forestry (A,B) 277 0.3 3635 2 414 0.3 3344 2
Mining/quarrying (C) 1195 1 2054 1 1964 2 3328 2
 Manufacturinga (D) 15,873 15 27,439 14 16,142 13 28,517 13
 Electricity, gas and water supply (E) 588 0.6 815 0.4 1195 1.0 2482 1
 Constructiona (F) 4493 4 16,267 8 4866 4 23,282 10
 Wholesale and retaila (G) 4761 4 50,969 26 4617 4 50,723 22
 Hotel and restaurant work (H) 1668 2 10,306 5 1106 1 6560 3
 Transport and storagea (I) 6602 6 13,933 7 7156 6 16,898 8
 Financial and real estatea (J/K) 6068 6 35,051 18 7305 6 41,016 18
 Public administrationa (L) 9915 9 2276 1 13,232 11 6488 3
 Educationa (M) 15,096 14 5153 3 21,100 17 8028 4
 Health and social worka (N) 36,449 35 16,203 8 46,752 35 25,776 11
 Other community and social work (P/Q) 2066 2 9421 5 2380 2 10,261 5
Sickness absence
 LSAS (risk of long-term sickness absence spells > 16 days duration) 17,804 17 26,921 14 22,034 18 32,708 14
  1. aIndustrial sectors selected in analyses