Example sentences of "age [prep] [noun sg] be [adj] [noun] " in BNC.

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1 The ideal age for recruitment is nine months old and the upper age limit is two years .
2 The key to safer sex in the age of AIDS is good communication .
3 The records of female social workers trained in early twentieth-century Birmingham , however , showed that only 22 per cent of educated women had married and that their average age at marriage was 34 years , some nine years older than the norm .
4 Their mean age at operation was 48 years , with a range of 21 to 67 .
5 The average age at presentation was 40 days in both groups .
6 Our figures for oral carcinoma in south east Scotland over the past 10 years show that 456 patients presented with these tumours ; the mean age at presentation was 63.8 years for men and 68.2 years for women .
7 In the 19 twins with Crohn 's disease , the mean age at diagnosis was 28.5 years ( range 20–45 ) and the actual study age 42.9 years ( range 34–63 ) .
8 The distribution of twins in concordant and discordant twin pairs , and the number of twins with an ileostomy , are shown in Table I. Among the 15 twins with ulcerative colitis , the mean age at diagnosis was 27.7 years ( range 17–45 ) ; the actual study age was 49.1 years ( range 24–74 ) .
9 Median postnatal age at referral was 2.8 months ( range 1 week to 96 months ) ; 128 were 6 months and under and 18 were over 12 months of age .
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