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. 2012 Jul 30;12:23. doi: 10.1186/1471-2342-12-23

Table 3.

HUNT 3: Characteristics of participants in the MRI study (MRI-p), non-participants (MRI-np) and non-invited (MRI-ni)

VARIABLES
 WOMEN
 MEN
 
 MRI-p
 MRI-np
 MRI-ni
 p
 MRI-p
 MRI-np
 MRI-ni
 p
Demographic (n = 530) (n = 286) (n = 6678)   (n = 476) (n = 268) (n = 5695)  
Age (mean [SD])
 57.6 [4.2]
 57.6 [4.3]
 58.2 [4.5]
 <0.0012
 57.9 [4.1]
 57.7 [4.2]
 58.3 [4.5]
 0.0271
Education >12 years (n [%])
 179 [34.0]
 94 [33.2]
 1349 [20.1]
 <0.0012
 156 [32.9]
 79 [29.8]
 1292 [22.9]
 <0.0012
Separated or divorced (n [%])
 86 [16.2]
 42 [14.7]
 881 [13.0]
 0.0852
 56 [11.8]
 41 [15.3]
 619 [10.6]
 0.0712
Non-employed (n [%])
 101 [19.3]
 79 [27.9]
 1889 [28.1]
 <0.0012
 76 [16.0]
 42 [15.7]
 1233 [21.7]
 0.0012
Health-related
  
  
  
  
  
  
  
  
Fair or poor health (n [%])
 164 [31.7]
 100 [35.8]
 2097 [32.2]
 0.4182
 110 [23.4]
 70 [26.6]
 1459 [26.3]
 0.3892
Physical inactivity (n [%])
 11 [2.1]
 10 [3.5]
 184 [2.8]
 0.4732
 18 [3.8]
 11 [4.1]
 283 [5.0]
 0.4072
Daily smoking (n [%])
 92 [17.4]
 60 [21.0]
 1661 [24.5]
 0.0012
 70 [14.7]
 57 [21.3]
 1046 [18.4]
 0.0582
Alcohol abstainers(n [%])
 18 [3.4]
 14 [4.9]
 263 [4.0]
 0.5792
 9 [1.9]
 5 [1.9]
 123 [2.2]
 0.8732
BMI (mean [SD])
 26.6 [4.1]
 27.8 [4.9]
 27.5 [4.6]
 <0.0011
 27.3 [3.1]
 27.9 [3.9]
 27.9 [3.6]
 0.0031
BMI ≥30 kg/m2 (n [%])
 110 [20.8]
 79 [27.6]
 1761 [26.0]
 0.0222
 93 [19.5]
 69 [25.7]
 1413 [24.9]
 0.0302
Headache(n [%])
 192 [42.5]
 79 [36.1]
 2177 [38.2]
 0.1552
 120 [29.1]
 60 [29.4]
 1298 [27.9]
 0.7922
Musculoskeletal pain(n [%])
 286 [63.4]
 141 [64.7]
 3576 [62.3]
 0.7182
 200 [47.8]
 108 [52.4]
 2351 [50.4]
 0.4932
HADS A score(mean [SD])
 4.0 [3.5]
 4.5 [3.5]
 4.3 [3.5]
 0.1581
 3.2 [2.8]
 3.6 [3.1]
 3.5 [3.1]
 0.2541
HADS D score(mean [SD])
 2.9 [2.6]
 3.0 [2.6]
 3.3 [2.9]
 0.0021
 3.4 [2.9]
 3.7 [2.9]
 3.7 [2.9]
 0.2431
Antihypertensive use (n [%])
 101 [19.1]
 54 [18.9]
 1638 [24.2]
 0.0052
 93 [19.5]
 60 [22.4]
 1495 [26.3]
 0.0032
Laboratory measurements
  
  
  
  
  
  
  
  
SBP (mean [SD])
 129.7 [17.1]
 132.0 [19.3]
 132.2 [18.7]
 0.0061
 134.2 [16.5]
 136.0 [17.8]
 135.4 [17.0]
 0.2771
SBP ≥140 mmHg (n [%])
 136 [25.8]
 100 [35.7]
 1880 [32.2]
 0.0042
 165 [35.2]
 96 [36.1]
 1805 [36.7]
 0.7922
DBP (mean [SD])
 73.2 [10.5]
 74.1 [10.9]
 73.5 [10.5]
 0.4851
 79.9 [9.9]
 80.9 [10.0]
 79.9 [10.2]
 0.2781
DBP ≥90 mmHg (n [%])
 34 [6.4]
 21 [7.5]
 387 [6.6]
 0.8302
 71 [15.1]
 43 [16.2]
 798 [16.2]
 0.8162
Cholesterol (mean [SD])
 5.9 [1.1]
 5.8 [1.1]
 6.0 [1.1]
 0.0551
 5.5 [1.0]
 5.4 [1.0]
 5.6 [1.0]
 0.0011
High cholesterol (n [%])
 149 [30.1]
 79 [30.0]
 2120 [31.9]
 0.5892
 75 [16.5]
 33 [13.3]
 1152 [20.5]
 0.0032
HDL Cholesterol(mean [SD])
 1.5 [0.4]
 1.5 [0.4]
 1.5 [0.4]
 0.3641
 1.2 [0.3]
 1.2 [0.3]
 1.2 [0.3]
 0.1031
Triglycerides (mean [SD])
 1.5 [0.8]
 1.6 [0.9]
 1.6 [0.9]
 0.1341
 1.8 [1.0]
 1.9 [1.2]
 1.9 [1.2]
 0.0551
Glucose (mean [SD])
 5.4 [1.5]
 5.6 [1.4]
 5.6 [1.4]
 0.0181
 5.8 [1.8]
 5.7 [1.6]
 6.0 [1.8]
 0.0391
Glucose ≥5.6 mmol/l (n [%]) 76 [15.4] 48 [18.3] 1387 [20.9] 0.0092 125 [27.5] 60 [24.1] 1763 [31.3] 0.0162

1. One-way analysis-of-variance 2. Chi-squared test.

BMI: Body mass index; SBP: Systolic blood pressure; DBP: Diastolic blood pressure; Fair or poor health: Fair or poor self-perceived health; Antihypertensive use: Current use of antihypertensive medication; Glucose: Non-fasting glucose; High Cholesterol: Cholesterol ≥6.6 mmol/l.