Ex2:- For the following information relating to platelet count (in
Lakh Cumn present in patients. Calculate range and coefficient of
range.
Platelet 10.250.300.30-0.75 0.75-1.00 LON-1025 1225-SOLS0-175 175
COVE
Numbers
at
Patients
Answers
Answer:
Step-by-step explanation:
Platelet count was measured at baseline in 1989-1990 and at three years follow-up, or at baseline (for a newly recruited group) in 1992-1993 in 5766 community-dwelling individuals aged 65 years and older (mean age at baseline, 73 years). During 12 to 15 years of follow-up, there were 821 incident myocardial infarctions, 807 ischemic strokes, 161 hemorrhagic strokes, 159 venous thrombotic events, and 3413 participants died. Platelet count was not associated with the occurrence of myocardial infarction, ischemic or hemorrhagic stroke, venous thrombosis, or cardiovascular mortality. Non-cardiovascular mortality was higher among both participants with low and with high platelet count. Adjusted non-cardiovascular mortality rates for platelet counts below 100, 100 to 199, 300 to 399, and above 400 X109/l relative to the reference mortality rate in participants with platelet count values between 200 and 299 X109/l were 1.89 (1.21-2.96),1.08 (0.98-1.20), 1.20 (1.06-1.37), and 1.47 (1.14-1.90), respectively.