Table 3

Association between physical activity overestimation and socio-demographic, clinical and health behaviour characteristics in the ADDITION-Plus cohort, 2003 to 2007
Characteristic Category/scale, units Overestimators % (N) Univariable ORb (95% CI) p Multivariable ORc (95% CI) p
Socio-demographic
Sex 20.7 (33) 1 0.50 1 0.70
17.7 (47) 0.84 ( 0.51 to 1.39) 0.91 (0.54 to 1.52)
Age category 42–54.9, years 14.1 (13) 1 0.55 1 0.51
55–59.9 18.9 (17) 1.41 (0.64 to 3.12) 1.53 (0.69 to 3.43)
          60–64.9 22.2 (18) 1.72 (0.78 to 3.82) 1. 77 (0.79 to 3.98)
65–71 19.7 (32) 1.52 (0.75 to 3.08) 1.37 (0.66 to 2.81)
Ethnicity      Asian/Black 18.2 (2) 1 0.97
          Caucasian 18.8 (78) 1.03 (0.21 to 4.97)
Socio-economic category Managerial/professional 12.9 (22) 1 0.009 1
Intermediate 21.1 (22) 1.68 (0.86 to 3.31 1.69 (0.86 to 3.31) 0.009
        Routine/manual 24.8 (36) 2.24 (1.21 to 4.12) 2.24 (1.22 to 4.12)
Clinical
BMI kg/m2 32.6 (4.7)a 1.023 (0.98 to 1.07) 0.33
Waist Circumference cm 109.7 (11.0)a 1.01 (0.99 to 1.02) 0.51
Health behaviours
Smoking status    Current 22.4 (13) 1 0.35
           Former 15.8 (33) 0.66 (0.32 to 1.38)
           Never 21.1 (33) 0.95 (0.45 to 1.99)
Alcohol consumption Units · week-1 7.6 (9.4)a 1.00 (0.98 to 1.03) 0.89
Dietary intake  Total energy, Kcal · day-1 1727 (484)a 1.00 (0.99 to 1.01) 0.29
Fat, g · day-1 59 (22)a 0.99 (0.98 to 1.01) 0.76
           Fruit, g · day-1 341 (224)a 1.00 (0.99 to 1.01) 0.23
           Vegetables, g · day-1 255 (139)a 1.00 (0.99 to 1.00) 0.54
Quality of life and well being
EuroQol EQ-5D scale, –0.3 to 1d 0.85 (0.2)a 1.55 (0.45 to 5.32) 0.48
ADDQoL scale, –9 to 9e 0.70 (1.0)a 0.87 (0.68 to 1.12) 0.27
SF-36 general health scale, 1 to 5f 2.9 (0.9)a 1.10 (0.83 to 1.46) 0.50
Diabetes treatment satisfaction scale, 0 to 36g 30.4 (5.5)a 1.01 (0.97 to 1.07) 0.51
Psychological
Intention scale, 1 to 5h 3.6 (0.9)a 1.31 (0.95 to 1.82) 0.10
Perceived behavioural control scale, 1 to 5h 3.6 (0.8)a 1.09 (0.81 to 1.46) 0.58

a Mean characteristic of overestimators (SD).

b Adjusted for age, sex and trial arm.

c Adjusted for age, sex, trial arm and socio-economic category (occupation).

d Weighted health state index, where dead = 0 and full health = 1.

e Weighted impact of diabetes index, where −9 = maximum negative and +9 = maximum positive diabetes impact.

f General health utility scale ranging from 1 = excellent to 5 = poor.

g Diabetes treatment satisfaction scale, where 0 = very dissatisfied and 36 = very satisfied.

h 5-point Likert-type agree/disagree scale, where 5 represents highest behaviour change beliefs.

Long et al.

Long et al. BMC Public Health 2013 13:678   doi:10.1186/1471-2458-13-678

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