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Table 1 Characteristics of study population by age at menarche

From: Association of age at menarche with metabolic syndrome and its components in rural Bangladeshi women

Characteristic Age at menarche (years)
  <12 12-13 >13 Trend Pb
n 488 583 352  
Current age (years) 40.91±11.68a 42.12 ± 12.92 42.72 ± 13.57 0.04
BMI (kg/m2) 21.43 ± 4.94 21.96 ± 4.01 22.26 ± 4.05 0.08
Number of pregnancies 3.50 ± 2.13 3.44 ± 2.08 3.36 ± 2.03 0.35
Currently married (%) 80.94 88.16 94.32 <0.01
Ever use of contraceptives (yes, %) 19.67 17.50 19.03 0.74
Use of tobacco products (ever, %) 31.56 19.04 7.10 <0.01
Education (illiterate, %) 52.05 54.37 59.66 0.03
Waist circumference (cm) 77.20 ± 9.32 76.96 ± 8.86 76.38 ± 7.90 0.19
Fasting blood glucose (mmol/L) 5.81 ± 2.12 6.29 ± 2.99 6.78 ± 4.65 <0.01
Triglyceride (mg/dL) 131.5 ± 102.8 130.5 ± 105.4 127.9 ± 119.2 0.03
HDL cholesterol (mg/dL) 36.54 ± 18.7 40.89 ± 31.05 48.71 ± 42.40 <0.01
Systolic blood pressure (mmHg) 115.46 ± 20.26 116.73 ± 21.74 116.70 ± 19.46 0.28
Diastolic blood pressure (mmHg) 74.53 ± 10.00 75.74 ± 10.34 75.29 ± 10.53 0.23
Metabolic syndrome (%) 26.14 25.73 22.13 0.16
  1. Abbreviation: BMI, body mass index; HDL, high-density lipoprotein.
  2. aValues are mean±SD, all such values.