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Table 4 Glucose metabolism and blood pressure characteristics, and metabolic syndrome prevalence in different age groups

From: Metabolic syndrome and its components in Polish women of childbearing age: a nationwide study

Parameter All Age (years) P value P for trend
20–29 30–39 40–49
Fasting glucose (mmol/l) N = 1529      
x ± SD 4.99 ± 0.75 4.82 ± 0.62 4.99 ± 0.89 5.12 ± 0,63 <0.0001 <0.0001
Median 4.93 4.77 4.91 5.07   
Fasting glucose (%)       
Normal (<5.6 mmol/l) 90.6 95.3 92.5 85.3   <0.0001
IFG (5,6–6,9 mmol/l) 8.2 4.4 6.1 13.1 <0.0001 <0.0001
Diabetes (diagnosed or fasting glucose ≥7 mmol/l) 1.2 0.3 1.4 1.6   0.0713
SBP (mm Hg) N = 1566      
x ± SD 118.4 ± 13.6 114.7 ± 10.3 116.4 ± 12.6 123.0 ± 15.2 <0.0001 <0.0001
Median 117.0 114.5 115.0 121.0   
DBP (mm Hg)       
x ± SD 77.0 ± 10.1 74.0 ± 8.6 76.2 ± 9.8 79.8 ± 10.7 <0.0001 <0.0001
Median 76.5 74.0 76.0 79.0   
BP (%)       
< 140/90 mmHg 84.3 96.3 87.5 72.8   
≥ 140/90 mmHg or medication 15.7 3.7 12.5 27.2 <0.0001 <0.0001
MS (%) according to IDF       
Yes 14.1 5.3 10.4 23.8 <0.0001 <0.0001
No 85.9 94.7 89.6 76.2   
  1. IFG- impaired fasting glucose
  2. SBP- systolic blood pressure; DBP- diastolic blood pressure; BP- blood pressure