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Table 4 SMRs among patients with a first-time hospital-based diagnosis of HZ, Denmark, 1994–2012

From: Hospital-based herpes zoster diagnoses in Denmark: rate, patient characteristics, and all-cause mortality

  Observed Expected SMR (95 % CI)a
Overall 6059 3414 1.8 (1.7–1.8)
Age group (years)    
 0–9 12 1.1 10.7 (6.1–18.9)
 10–19 18 1.1 16.4 (10.4–26.1)
 20–29 34 4.0 8.5 (6.1–12.0)
 30–39 66 11 5.8 (4.6–7.4)
 40–49 143 30 4.8 (4.1–5.7)
 50–59 451 124 3.6 (3.3–4.0)
 60–69 916 350 2.6 (2.5–2.8)
 70–79 1874 988 1.9 (1.8–2.0)
 80–89 2080 1507 1.4 (1.3–1.4)
  ≥ 90 465 397 1.2 (1.1–1.3)
Sex    
 Women 3530 2166 1.6 (1.6–1.7)
 Men 2529 1248 2.0 (1.9–2.1)
Charlson Comorbidity Index level    
 None 1663 1651 1.0 (1.0–1.1)
 Moderate 1229 784 1.6 (1.5–1.7)
 Severe 1346 506 2.7 (2.5–2.8)
 Very severe 1821 473 3.8 (3.7–4.0)
Comorbidity associated with immune dysregulation    
 No 3378 2513 1.3 (1.3–1.4)
 Yes 2681 901 3.0 (2.9–3.1)
Any of the identified comorbidities    
 No 1532 1555 1.0 (0.9–1.0)
 Yes 4527 1858 2.4 (2.4–2.5)
  1. Abbreviations: CI confidence interval, HZ herpes zoster, SMR Standardized mortality ratios
  2. aComputed using indirect standardization with the Danish general population as reference. Due to rounding the estimates and upper and lower confidence bounds may appear the same