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Table 2 Descriptive statistics for the age groups included

From: Evidence-based design recommendations for prevalence studies on multimorbidity: improving comparability of estimates

Items N Mean SD Min Max
Limits
 Lower limit of age group given 104 50.7 24.5 0 85
 Lower limit of age group imputed 4 15 n.a. n.a. n.a.
 Upper limit of age group given 70 66.6 19.9 17 99
 Upper limit of age group imputed 38 90 n.a. n.a. n.a.
 Mean agea 108 60.3 20 9 89.3
Size
 No. of persons in age group 108 116,940 585,066 136 5,585,931
Prevalence
 P2+ (2 or more chronic conditions) 102 46.6% 24.4 0.3% 98.7%
 P3+ (3 or more chronic conditions) 76 28.7% 22.0 0.0% 95.7%
  1. aWhen mean age was not indicated, it was derived from the Human Mortality Database [16]