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. 2018 Dec 22;8(12):e022569. doi: 10.1136/bmjopen-2018-022569

Table 3.

Associations between work unit-level/individual-level social capital and K6

Estimates Model 0 Model 1 Model 2
Coefficient (95% CI) Coefficient (95% CI) Coefficient (95% CI)
Intercept 4.57 (4.41 to 4.73) 4.55 (4.36 to 4.74) 4.65 (4.17 to 4.99)
Work unit level
 Workplace social capital −0.69 (−1.12 to −0.26)
 Workplace size 0.09 (−0.22 to 0.41)
Individual level fixed effects
 Workplace social capital ‐0.83 (−0.92 to −0.73) −0.84 (−0.94 to −0.74)
 Sex 0.13 (−0.06 to 0.32) 0.14 (−0.06 to 0.33)
 Age −0.63(−0.78 to−0.48) −0.58 (−0.73 to −0.43)
 Educational attainment −0.18 (−0.31 to −0.04) −0.17 (−0.31 to −0.03)
 Occupation −0.19 (−0.31 to −0.07) −0.19 (−0.31 to −0.07)
 Employment contract −0.30 (−0.50 to −0.11) −0.34 (−0.54 to −0.14)
 Weekly working hours 0.03 (−0.08 to 0.15) 0.04 (−0.08 to 0.15)
 Annual familial income −0.23 (−0.34 to −0.12) −0.24 (−0.35 to −0.13)
 Chronic disease 0.14 (0.03 to 0.25) 0.14 (0.03 to 0.25)
 Smoking status −0.04 (−0.17 to 0.08) −0.05 (−0.18 to 0.07)
 Frequency of alcohol drinking −0.01 (−0.13 to 0.10) −0.02 (−0.14 to 0.09)
 Physical exercise −0.09 (−0.18 to 0.01) −0.07(−0.17 to 0.02)
 BMI −0.04 (−0.16 to 0.09) −0.03(−0.15 to 0.10)
 Job strain 0.64 (0.54 to 0.74) 0.62 (0.53 to 0.72)
Random effects
 Work unit level variance 0.13 0.27 0.88
 Workplace social capital 0.43
 Workplace size 0.49
 Individual level variance 3.08 2.75 2.76
 Time level variance 3.05 2.96 2.92
 VPC workplace 0.1% 0.4% 6.9%
 VPC individual 50.5% 46.2% 45.1%
 VPC time 49.4% 53.4% 50.3%

BMI, body mass index; K6, Kessler Psychological Distress Scale; VPC, variance partition coefficient.