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Table 3 Means (standard deviations) of background factors for those granted DP due to MSD, DP, and those not granted DP in the twin cohort

From: Stability and change in health behaviours as predictors for disability pension: a prospective cohort study of Swedish twins

  DP due to MSD DP in general No DP
  Men Women Men Women Men Women
  MZ DZ MZ DZ MZ DZ MZ DZ MZ DZ MZ DZ
Background factors Mean (SD) Mean (SD) Mean (SD) Mean (SD) Mean (SD) Mean (SD) Mean (SD) Mean (SD) Mean (SD) Mean (SD) Mean (SD) Mean (SD)
Follow-up time (years) 4 (2.0) 4 (2.2) 4 (2.3) 3 (2.1) 4 (2.1) 4 (2.2) 4 (2.2) 3 (2.2) 6 (1.7) 6 (1.7) 6 (1.7) 6 (1.8)
Age at SALT-interview 55 (3.8) 54 (4.4) 54 (4.6) 54 (4.8) 55 (3.9) 54 (4.6) 54 (4.5) 54 (4.7) 53 (5.6) 52 (5.7) 52 (5.8) 53 (5.8)
Education (years) 10 (1.8) 10 (1.9) 11 (2.2) 10 (2.1) 11 (2.2) 10 (2.3) 11 (2.5) 11 (2.3) 12 (2.6) 11 (2.5) 12 (2.5) 11 (2.5)