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Table 1 Basic characteristics of the women under study

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

Parameter All n = 1588 Age (years) P value
20–29 n = 403 30–39 n = 600 40–49 n = 585
Marital status:
 Married (%) 68.3 35.7 79.8 79.0 <0.0001
Education:
 Primary (%) 19.8 3.7 22.7 27.9 <0.0001
 Secondary (%) 38.7 43.9 32.2 41.8
 Higher (%) 41.5 52.4 45.1 30.3
Occupational activity (%)
 Yes 64.0 52.1 65.9 70.1 <0.0001
 No 36.0 47.9 34.1 29.9
Net household income p.p. (%)a
  ≤ 500 PLN 16.5 15.9 17.9 15.4 ns
 501–1000 PLN 33.5 31.4 33.0 35.3
 1001–2000 PLN 36.9 37.8 36.2 37.0
 2001–3000 PLN 10.1 12.0 9.2 9.9
  > 3000 PLN 3.0 2.9 3.7 2.4
Smokers (%)b 19.3 17.9 17.4 22.2 ns
Self-assessment of health status (%)
 Very good + good 85.7 92.5 91.0 75.6 <0.0001
 Average 13.4 7.5 8.7 22.3
 Bad + very bad 0.9 0.0 0.3 2.1
Oral contraception (%) 12.7 13.9 16.0 8.0 0.0003
Number of born children
 x ± SD 1.51 ± 1.21 0.46 ± 0.73 1.63 ± 1.02 2.07 ± 1.20  
Median 2.00 0 2.00 2.00 0.0001
Number of born children
 0 (%) 24.01 65.62 13.32 7.36 0.0001
 1 (%) 24.85 24.15 28.84 21.19
 2 (%) 35.86 8.66 45.19 44.31
 3 (%) 10.16 1.31 8.94 17.34
 4 and more 5.11 0.26 3.71 9.81
Diseases of the thyroid gland (%) 12.9 9.0 11.5 17.1 0.0005
  1. aincluded only those who answered the question, i.e. 136 subjects
  2. bat least one cigarette per day currently