Table 3—

HRs for the association between A1C levels and mortality in a New Zealand population-based sample by cause of death

Site (ICD-9)nA1C levels
<4.0%
4.0 to <5.0%
5.0 to <6.0%
6.0 to <7.0%
≥7.0%
Prior diabetes diagnosis
nHR (95% CI)*nHR (95% CI)*nHR (95% CI)*nHR (95% CI)*nHR (95% CI)*nHR (95% CI)*
All deaths81532.90 (0.91–9.19)821.04491.33 (1.05–1.70)1292.12 (1.58–2.85)872.36 (1.72–3.25)655.19 (3.67–7.35)
All cancers (140–239)2620261.01541.10 (0.72–1.68)441.50 (0.90–2.48)231.29 (0.72–2.30)152.35 (1.22–4.53)
Endocrine, nutritional & metabolic, and immunity disorders (240–279)470061.021.79 (0.35–9.18)1927.17 (10.20–72.39)2090.36 (33.42–244.33)
Diseases of circulatory system (390–459)28013.95 (0.53–29.51)201.01511.43 (0.89–2.30)542.46 (1.44–4.19)322.44 (1.37–4.35)224.75 (2.53–8.92)
    Ischemic heart disease (410–414)16616.26 (0.81–48.13)131.0911.27 (0.71–2.30)261.75 (0.88–3.49)232.55 (1.26–5.16)123.89 (1.72–8.77)
Other and unknown causes22624.53 (1.09–18.85)361.01381.41 (0.96–2.06)292.52 (1.47–4.31)131.86 (0.95–3.65)83.88 (1.72–8.74)
  • *

    * Adjusted for age, sex, ethnicity, and smoking status.

  • Reference category.

  • Not calculated due to zero deaths.