A change in haematology lab practice, whereby results from patients under the age of 16 were reported against standardised age-specific ranges based on their date of birth, would avoid this.
In case of standardised rates, the age distribution in Kerala for 2011 is used as the reference population because Kerala is a demographically advanced Indian state.
Resolving these contradictions requires the use of standardised registers with adequate age range and geographic coverage, as well as a high level of ascertainment.
Due to the age constraints of standardised tests, all phenotypic data were collected for children only.
Questions are also raised about appropriateness of standardised measures such as gestational age and birth weight for different races, with calls for ethnic-specific perinatal health indicators to be developed [ 3, 29].
For the calculation of the standard error of non-standardised and age-standardised relative survival, two methods were employed.
When using the Ederer II method, deviations of the standard errors of non-standardised and age-standardised relative survival were generally small to negligible.
Being of younger age (standardised beta of −0.102, t-test = −1.990, P = 0.047) and being in paid employment (standardised beta of −0.099, t-test = −2.040, P = 0.042) remained associated with higher levels of 'hassles'hassles
Our results on the standard error of relative survival support the recommendation of the Ederer II method, as both standard errors of non-standardised and age-standardised relative survival estimates were accurately estimated by the conventional method.
For the Ederer II method, standard errors of non-standardised and age-standardised relative survival were accurately estimated.
