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Table 1 Baseline characteristics of the sample, according to incidence of peripheral artery disease (PAD)

From: Incidence of peripheral arterial disease in the ARTPER population cohort after 5 years of follow-up

  Without PAD With PAD Total  
  n = 2161 n = 95 na = 2256  
  n % n % n % p
Men 887 41 % 46 48 % 933 41 % 0.153
Age (mean, SD) 63 7.7 66 9.0 63 7.8 0.000
Age category        0.023
 49–64 1337 62 % 46 48 % 1383 61 %  
 65–69 376 17 % 20 21 % 396 18 %  
 70–86 448 21 % 29 31 % 477 21 %  
Education level       0.332  
 Illiterate 97 5 % 7 8 % 104 5 %  
 Primary education 1482 72 % 63 69 % 1545 72 %  
 Secondary education 408 20 % 20 22 % 428 20 %  
 University 73 4 % 1 1 % 74 3 %  
Smoking habit        0.000
 Never smoker   1285 59 % 37 39 % 1322 58.6 %
 Former smoker 532 25 % 31 33 % 563 25.0 %  
 Current smoker 344 16 % 27 28 % 371 16.4 %  
Physical activity in leisure timeb (mean, SD) 5.8 3.5 4.7 3.7 5.8 3.6 0.009
Physical activity limitations        0.000
 None 933 44 % 21 22 % 954 43 %  
 Moderate 1052 49 % 56 60 % 1108 50 %  
 Can only do light activities 142 7 % 13 14 % 155 7 %  
 Any activity causes breathlessness 15 1 % 4 4 % 19 1 %  
Body mass index (Kg/m2) (mean, SD) 29 4.5 30 5.6 29 4.6 0.091
Central obesityc 1283 60 % 63 66 % 1346 60 % 0.196
Morbidity (clinical record)        
 Hypertension 891 42 % 57 62 % 948 43 % 0.000
 Hypercholesterolemia 1015 48 % 50 53 % 1065 48 % 0.334
 Diabetes 268 12 % 21 22 % 289 13 % 0.006
High LDL (>130 mg/dl) 1225 57 % 53 56 % 1278 57 % 0.783
Low HDL (<40 mg/dl men, <50 mg/dl women) 410 19 % 30 32 % 440 20 % 0.002
High triglycerides (>150 mg/dl) 506 24 % 27 28 % 533 24 % 0.286
Atherogenic dyslipidaemia 199 9 % 11 12 % 210 9 % 0.437
REGICOR scored        0.000
  ≤ 5 % 1253 64 % 32 43 % 1285 64 %  
 5–10 % 524 27 % 27 36 % 551 27 %  
  > 10 % 166 9 % 16 21 % 182 9 %  
Framingham scored        0.000
  ≤ 10 % 940 48 % 24 32 % 964 48 %  
 10–20 % 669 34 % 24 32 % 693 34 %  
  > 20 %   334 17 % 27 36 % 361 18 %
Ankle SBP (minimum of both legs) (mmHg) (mean, SD) 147 21 144 24 147 21 0.124
Control brachial SBP (mmHg) (mean, SD) 135 18 142 20 135 18 0.000
Ankle-brachial index (minimum of both legs) (mean, SD) 1.10 0.10 1.01 0.09 1.09 0.10 0.000
  1. SD standard deviation, SBP systolic blood pressure
  2. aMissing values (without PAD + with PAD): education level (101 + 4), physical activity in leisure time (424 + 20), physical activity limitations (19 + 1), body mass index (2 + 0), central obesity (11 + 0), hypertension (28 + 3), hypercholesterolemia (51 + 1), LDL (20 + 0), triglycerides (22 + 0), atherogenic dyslipidaemia (1 + 0), Framingham and REGICOR scores (17 + 0)
  3. bExpressed in thousands of METS spent in 14 days doing sporting activities, walking, gardening, walking up stairs, housecleaning and shopping by foot
  4. cCentral obesity if the circumference of the hip ≥102 (men) or ≥88 (women)
  5. dREGICOR and Framingham scores are calculated only in those under 74 years of age at recruitment (n = 2035 under 74 years of age)