Table 15.

Reference values of the Schiersmann's Index for Group I.

Age group	10	25	50	75	90	10–90 norm	Mean ±SD
0–12 months	3,545	3.792	3.968	4.147	4.533	3.545–4.533	3.978±0.580
>12–36 months	3.879	4.061	4.250	4.517	5.375	3.879–5.375	4.413±0.708
>3–6 years	4.000	4.479	4.768	5.417	5.625	4.000–5.625	5.011±0.788
>6–9 years	3.912	4.108	4.498	4.863	5.481	3.912–5.481	4.548±0.680
>9–12 years	4.028	4.143	4.529	4.898	6.038	4.028–6.038	4.668±0.768
>12–15 years	3.977	4.277	4.636	5.041	5.480	3.977–5.480	4.719±0.801
>15–18 years	4.152	4.406	4.719	5.148	5.667	4.152–5.667	4.803±0.672