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. 2019 Jul 25;11(1):55–61. doi: 10.1111/jdi.13067

Table 1.

Standardized mortality ratio for type 2 diabetes patients over the 5‐year study period by age

Age (years) No. deaths/sample size

SMR (95% CI)

All

SMR (95% CI)

Men

SMR (95% CI)

Women

<25 0/6      
25–34 2/88 542 NS (61–1,806)   1,933 (242–7,224)
35–44 14/495 330 (180–553) 157 NS (51–365) 683 (312–1,294)
45–54 60/1547 232 (177–299) 190 (133–264) 283 (182–422)
55–64 203/2725 188 (163–216) 159 (132–189) 220 (174–275)
65–74 563/3319 176 (162–192) 154 (138–172) 195 (171–222)
75–84 659/2047 132 (122–143) 124 (111–137) 137 (122–153)
≥85 263/452 102 NS (90–115) 108 NS (89–128) 96 NS (81–113)
Overall 1764/10679 145 (139–152) 136 (128–145) 148 (138–159)

The 95% confidence intervals (CI) were calculated using Byar's method1, which is accurate for observed frequencies of five or more. For smaller observed frequencies, an exact method based on the Poisson distribution is used21, 22.

Scottish mortality rates estimated from National Records of Scotland Vital Events Reference Tables 2015 Table 5.1(b): Death rates, by sex and age, Scotland, 2001 to 2014 https://www.nrscotland.gov.uk/statistics-and-data/statistics/statistics-by-theme/vital-events/general-publications/vital-events-reference-tables/2015/section-5-deaths (accessed 15/11/17). NS, not significant.