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. 2013 Mar 13;8(3):e58256. doi: 10.1371/journal.pone.0058256

Table 1. Description of basic demographics, socioeconomic status, personality and markers of inflammation by area deprivation category.

Least Deprived (n = 342) Most Deprived (n = 324) pb
Age (years) 51.8 (8.0)a 51.5 (8.5) 0.63
Gender
Male 171 (50.0%) 156 (48.1%) 0.64
Female 171 (50.0%) 168 (51.9%)
Household income £41,699 (11,921) £16,461 (10,056) <0.001
Education (total years) 16.1 (3.6) 11.8 (2.5) <0.001
Residential status
Owner 334 (97.7%) 97 (29.9%) <0.001
Tenant 8 (2.3%) 227 (70.1%)
Occupation categoryc
I & II 251 (73.4%) 62 (19.1%) <0.001
III 77 (22.5%) 139 (42.9%)
IV & V 12 (3.5%) 105 (32.4%)
Unemployed 1 (0.3%) 2 (0.6%)
Current Smoker
Yes 28 (8.2%) 161 (49.7%) <0.001
No 314 (91.8%) 163 (50.3%)
Alcohol (weekly units) 11.1 (12.7) 11.1 (21.5) 0.906
Diet scored 95.7 (51.4) 59.9 (50.4) <0.001
Activitye
Moderately Active – Active 176 (51.5%) 127 (39.2%) <0.001
Moderately Inactive – Inactive 166 (48.5%) 197 (60.8%)
Body mass index (BMI) 26.9 (4.5) 28.7 (6.3) <0.001
Inflammatory Biomarkers
C-reactive protein (CRP) (mg/l)f 1.09 [0.51–2.27] 2.12 [1.07–4.32] <0.001
Interleukin-6 (IL-6) (pg/ml)f 1.25 [0.87–1.95] 2.28 [1.34–3.13] <0.001
Intercellular adhesion molecule(ICAM-1) (ng/ml)f 229.4 [207.5–263.6] 297.8 [241.9–391.7] <0.001
Fibrinogen (g/l) 3.23 (0.64) 3.50 (0.76) <0.001
Eysenck Personality scores (EPQ-R)g
Neuroticism (N) 4.06 (3.19) 5.96 (3.79) <0.001
Extraversion (E) 7.49 (3.41) 7.34 (3.61) 0.558
Psychoticism (P) 1.26 (1.30) 2.58 (2.02) <0.001
Lie scale 5.35 (2.68) 5.34 (2.78) 0.962
GHQ depression scoreh 0.17 (0.79) 0.76 (1.71) <0.001
NART error scorei 7.16 (5.27) 15.61 (9.01) <0.001
a

Values are presented as Mean (SD) for all participants; or as percentages for categorical variables, adjusted for age and sex;

b

P relates the comparison between the two groups. Categorical variables were compared using Fisher’s exact test, continuous variables were compared using t-tests or Wilcoxon tests as appropriate.

c

The occupational category could not be determined for n = 1 (0.3%) and n = 16 (5%) of the LD and MD groups respectively. Occupation classified using Registrar General Social Class Classification on basis of current job or, if not currently working, on the basis of participants’ last paid job. Only those who had never been in paid employment were classed as “unemployed.” I - professional occupations; II - managerial and technical occupations; III - manual and non-manual skilled occupations; IV - partly skilled occupations; V - unskilled occupations.

d

Diet score is the participants self-reported consumption of fruit and vegetables (fresh, cooked and raw) per month.

e

Physical activity level is a combination of activity at work and recreational exercise.

f

Data log transformed prior to regression analysis.

g

Personality trait scores were self-reported, each on a scale of 1 to 12.

h

Depression = depression sub-scale of GHQ-28.

i

NART (National Adult Reading Test).