3.1 Quick revision

We strongly recommend trying these Quick revision questions before your tutorial.

A study of obstructive sleep apnoea (OSA) in adults with Down Syndrome (de Carvalho et al. 2020) had \(n = 60\) adults undergo a sleep study. The data are shown in Fig. 3.1.

FIGURE 3.1: The obstructive sleep apnoea data set

  1. How would you classify the variable Age?
  2. How would you classify the variable Gender?
  3. How would you classify the variable BMI?
  1. Age is quantitative continuous. (Values are rounded down to the nearest year for convenience, but the variable is continuous. The age of babies, for example, if often quoted in days, weeks or months.)
  2. Qualitative nominal.
  3. Quantitative continuous. :::

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de Carvalho AA, Amorim FF, Santana LA, de Almeida KJQ, Santana ANC, Neves F de AR. STOP-Bang questionnaire should be used in all adults with Down Syndrome to screen for moderate to severe obstructive sleep apnea. PloS ONE. 2020;15(5):e0232596.