Table 1. Normative range of common biochemical parameters in Indian adolescents.
| Age group (years) |
11–17 (Total) | 11–17 (Boys) | 11–17 (Girls) | P value | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Parameters | N | Median (Percentiles 2.5–97.5) |
Mean | N | Median (Percentiles 2.5–97.5) |
Mean | N | Median (Percentiles 2.5–97.5) |
Mean | |
| FPG (mmol/L) | 6977 | 4.79 (3.56–6.49) | 4.80 | 3087 | 4.88 (3.61–6.88) | 4.91 | 3890 | 4.70 (3.52–6.16) | 4.72 | < 0.0001 |
| Insulin (pmol/L) | 5536 | 57.45 (10.60–199.48) | 68.90 | 2480 | 52.12 (10.50–199.12) | 65.34 | 3056 | 61.12 (10.75–198.84) | 71.79 | < 0.0001 |
| C-peptide (nmol/L) | 5084 | 1.09 (0.21–3.22) | 1.26 | 2189 | 0.79 (0.19–2.98) | 1.03 | 2895 | 1.35 (0.25–3.33) | 1.43 | < 0.0001 |
| HbA1c (%) | 3725 | 5.16 (3.85–6.25) | 5.16 | 1795 | 5.09 (3.86–6.17) | 5.08 | 1930 | 5.28 (3.86–6.34) | 5.24 | < 0.0001 |
|
TC (mmol/L) |
6981 | 3.70 (2.49–5.54) | 3.78 | 3089 | 3.67 (2.47–5.41) | 3.74 | 3892 | 3.74 (2.51–5.62) | 3.81 | 0.0001 |
| LDL (mmol/L) | 7000 | 2.15 (1.16–3.69) | 2.20 | 3100 | 2.14 (1.15–3.63) | 2.19 | 3900 | 2.16 (1.17–3.72) | 2.22 | 0.10 |
| HDL (mmol/L) | 7002 | 1.19 (0.78–1.85) | 1.22 | 3099 | 1.17 (0.78–1.81) | 1.20 | 3903 | 1.20 (0.78–1.88) | 1.24 | < 0.0001 |
| TG (mmol/L) | 6982 | 0.96 (0.33–2.24) | 1.04 | 3086 | 0.95 (0.36–2.30) | 1.04 | 3896 | 0.96 (0.33–2.16) | 1.03 | 0.81 |
| Urea (mmol/L) | 4860 | 6.75 (3.56–11.45) | 6.94 | 2302 | 7.18 (3.91–11.63) | 7.32 | 2558 | 6.39 (3.35–11.21) | 6.60 | < 0.0001 |
| Uric acid (μmol/L) | 5064 | 257.55 (130.01–440.15) | 268.51 | 2419 | 297.99 (149.83–470.55) | 300.27 | 2645 | 231.97 (120.74–364.55) | 239.45 | < 0.0001 |
| Creatinine (μmol/L) | 4830 | 42.44 (22.99–74.28) | 44.02 | 2296 | 44.21 (25.64–78.36) | 46.29 | 2534 | 40.67 (22.11–69.85) | 41.96 | < 0.0001 |
Values for biochemical parameters have been presented as Median (2.5 percentile and 97.5 percentile). N: sample number; FPG: fasting plasma glucose, HbA1c: glycosylated hemoglobin, TC: total cholesterol, LDL: low–density lipoprotein cholesterol, HDL: high–density lipoprotein cholesterol, TG: triglycerides. Mann Whitney U test was used to compare difference for biochemical parameters between boys and girls.