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Table 7 Comparison of total count of nursing home residence months(n = 150, Weighted n = 520,260)

From: Validation of a method for identifying nursing home admissions using administrative claims

  Weighted mean difference in total number of nursing home residence months (95% CI) p-value Weighted Pearson correlation coefficient p-value
Algorithm 1*vs. Expert Review -0.13 (-0.36, 0.11) 0.30 0.83 <0.0001
Algorithm 2 vs. Expert Review -0.01 (-0.11, 0.10) 0.93 0.97 <0.0001
  1. CI = confidence interval
  2. *Algorithm 1 defined a person-month as a nursing home stay if there was at least one day in the month where the nursing home RULE = "PROBABLE"; otherwise the person-month was considered not to be a nursing home stay.
  3. Algorithm 2 defined a person-month as a nursing home stay if there was at least one day in the month where the nursing home RULE = "PROBABLE" or RULE = "POSSIBLE"; otherwise the person-month was considered not to be a nursing home stay.