Example sentences of "age of [adj] years [pron] " in BNC.

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1 Thus the National Child Development Study which covered all children born during a week in 1958 found that at the age of 7 years there was a far higher proportion of children from the lower socio-economic groups who had not been immunised against smallpox , polio and diphtheria .
2 After the age of 5 years it is suggested that language increasingly becomes a tool for higher intellectual functions and therefore is difficult to assess independently of other cognitive processes .
3 It is remarkable that two out of the three patients here described are children under the age of 10 years whose grievous sufferings commenced almost with their birth and would in all probability have continued to their death had not this infirmary been established . ’
4 There is also considerable evidence ( as marshalled by Ingram 1975 ) to suggest that up to the age of six years it is mainly short , simple but still hierarchically structured sentences that the child is able to produce .
5 Hamsten in a prospective trial of 109 patients under the age of 45 years who suffered a first myocardial infarction found a reduced plasminogen activator capacity and increased levels of plasminogen activator inhibitors in those patients suffering reinfarction .
6 However , over the age of 80 years there is little difference between the sexes .
7 It was recommended , on the basis of a report from the medical officer , that outside accommodation in cottage homes be provided for children over the age of three years who were not eligible for boarding out .
8 As the mature version of deep slow wave sleep develops in the first year of life , and daytime sleeping is displaced by wakefulness , the number of hours spent in active ( REM ) sleep is eroded until by the age of three years it has dropped from twelve hours to three or four .
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