Statistics by Prescription

Statistics by Prescription

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The manual presents the guide-like introduction to statistical techniques particulary oriented on medicine. The exercises present in the book make possible the self-education based on the international program SAS. I strongly support the distribution of this book among all medical libraries as well as all libraries of the natural science institutions.


Reviewer prof. Andrzej, Les Warsaw University


Rok wydania2009
Liczba stron268
KategoriaInne
WydawcaWydawnictwo Uniwersytetu Jagiellońskiego
ISBN-13978-83-233-2741-7
Numer wydania1
Język publikacjipolski
Informacja o sprzedawcyePWN sp. z o.o.

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Spis treści

  INTRODUCTION    7
  STEP 1 – Descriptive statistics    9
    What we can learn about the patients?    9
    How to find an answer to the question:    9
    Is it possible to avoid urolithiasis?    9
    STEP 1 – exercise – Preliminary data analysis    28
  STEP 2 – We analyse the distribution of the measurable variable    33
    What type of distribution is presented by the clinical measurable variables?    33
    Why is finding the distribution type of the measurable feature essential?    33
    Is the female patients’ age distribution comparable to the male patients’ age distribution?    33
    STEP 2 – exercise – Data analysis    52
  STEP 3 – The x2(chi-square) test of the goodness of fit    64
    Is the women’s age distribution (in the group of people with the urinary tract nephrolithiasis) a normal distribution?    64
    Is the men’s age distribution (in the group of people with the urinary tract nephrolithiasis) a normal distribution?    64
    STEP 3 – exercise – Checking the type of distribution    76
  STEP 4 – T-test and F-test    96
    How to estimate the differences between groups of patients?    96
    Do the patients, in whom the urinary tract infection was found, differ with their bodily temperature from those, in whom the bacteria were not found?    96
    Is the bodily temperature really different for the group with the haematuria found in relation to the group without haematuria?    96
    STEP 4 – exercise – F-test and T-test    113
  STEP 5 – ANOVA test    121
    How to compare more than two groups?    121
    Do the patients with different stone localization differ with the body temperature?    116
    Is the urine pH in patients with different chemical stone composition different?    121
    STEP 5 – exercise – ANOVA test    128
  STEP 6 – Correlation and regression    144
    Are any variables mutually dependent?    144
    Is there any relationship between the urine pH and the urine density?    144
    Can we predict the probable stone composition on the basis of the known value of urine pH and its unit weight?    144
    STEP 6 – exercise – Correlation and regression    158
  STEP 7 – The Pearson’s  (chi-square) test (The independence test)    166
    Is there any relation between qualitative variables?    166
    Does the sort of diet composition influence the chemical compounds present in the stone?    166
    Does the accompanying illness influence the stone composition?    166
    STEP 7 – exercise – c2 (chi-square) test of independence    172
  STEP 8 – Nonparametric tests (distribution-free tests)    183
    How about the data not representing the normal distribution?    183
    Does the age of female patients with nephrolithiasis urinary tract nephrolithiasis differ from the age of male patients with the same illness?    183
    Is the urine pH in the patients with bacteriuria different in relation to the patients without the urinary tract infection?    183
    Does the urine pH really specifically differ in groups created according to the stone localization?    183
    Does the stone localization determine the patient’s body temperature?    183
    Is the patient’s age really different for the groups with a different accompanying illness?    184
    STEP 8 – exercise – Nonparametric tests (distribution free tests)    193
  STEP 9 – Comprehensive analysis    197
    Do we know already the method to prevent nephrolithiasis?    197
    STEP 9 – exercise – Comprehensive analysis    217
  STEP 10 – Survival analysis    229
    Is it possible to make prognosis?    229
    When can we expect the crystalline deposit re-appearance after its removal?    229
    STEP 10 – exercise – Survival analysis    234
  Recapitulation    240
  Afterword    242
  Supplementary tables    243
  Vocabulary    247
  Index    260
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