Random selection of residents
1. Find random starting point in medical charts
2. Find first chart in which:
• resident was over 18 years of age
• hemoglobin level was recorded from
1/1/04 through 2/1/05 [index date]
• a serum creatinine level was recorded
between Hb index date through
subsequent 6 months
• resident was residing in the home for a
duration of at least 6 months subsequent
to index date
3. Continue this process in order (selecting every
third record) until 15 to 20 case report forms (CRF)
are completed