Table 2. Trends in anthropometric and metabolic characteristics in two age groups of adolescent females (1999–2008): Tehran Lipid and Glucose Study.
| 1999–2001 Survey 1 |
2002–2005 Survey 2 |
2005–2008 Survey 3 |
||||
| Age groups (years) | 10–14 | 15–19 | 10–14 | 15–19 | 10–14 | 15–19 |
| Age (years)b | 12.3(1) | 17.0(1) | 12.3(1) | 17.3(1) | 12.3(1) | 17.2(1) |
|
n % adolescents in each survey |
675 22.4 |
913 30.4 |
214 19.3 |
357 32.3 |
231 21.2 |
351 32.2 |
| Weight (kg) | 43.6(11)b | 55.5(10) | 45.2(12) | 56.9(11) | 44.4(12) | 57.6(11)d |
| Height (cm) | 150.9(9) | 159.5(5) | 150.6(8) | 159.7(6) | 147.5(9)c | 159.4(5) |
| BMIa (kg/m2) | 18.9(4) | 21.7(4) | 19.7(4) | 22.2(4) | 20.1(4)c | 22.6(4)d |
| WCa (cm) | 66.9(9) | 72.5(9) | 68.5(10) | 73.3(9) | 66.9(10) | 71.3(9)d |
| Systolic BPa (mm Hg) | 102(11) | 106(11) | 97.0(11) | 101(10) | 96.0(12)c | 99.0(11)d |
| Diastolic BPa (mm Hg) | 70.0(10) | 72.9(9) | 66.0(10) | 69.2(8) | 62.3(10)c | 65.6(9)d |
| TGa (mg/dL) | 107.0 | 91.5 | 101.0 | 81.0 | 95.0c | 84.0d |
| HDL-Ca (mg/dL) | 42.5(10) | 43.9(10) | 41.1(10) | 41.1(10) | 43.7(10)c | 44.2(10)d |
| LDL-Ca (mg/dL) | 104(28) | 104(27) | 95(24) | 95(26) | 95(25)c | 91(26)d |
| T-Chola (mg/dL) | 171(31) | 169(31) | 159(29) | 153(28) | 160(30)c | 154(31)d |
aBMI: body mass index, WC: waist circumference, BP: blood pressure, TG: triglyceride, HDL-C: high-density lipoprotein cholesterol, LDL-C: low-density lipoprotein cholesterol, TC: total cholesterol. bMean (SD), TG is median. cSignificant difference between the 3 surveys in 10–14 year age group. dSignificant difference between the 3 surveys in 15–19 year age group.