Crude and standardised rates

Worked examples (9)

• 1A crude birth rate per thousand
• 2Choosing the scale: per hundred thousand
• 3Running the rate backwards to find the number of events
• 4Number of events from subgroup rates
• 5Crude rate from subgroup data
• 6A standardised rate as a weighted average
• 7Standardising all three areas against one standard population
• 8Comparing two counts — and the order of rounding
• 9When standardising reverses the answer

Model answers (9)

• ✓Model answer — 0479 Paper 1 style — 9.1
• ✓Model answer — 0479 Paper 2 style — 9.1
• ✓Model answer — 0479 Paper 1 style — 9.5
• ✓Model answer — 0479 Paper 2 style — 9.2 (AO2)
• ✓Model answer — 0479 specimen Paper 1 Q9(d)(i) — 9.5
• ✓Model answer — 0479 specimen Paper 1 Q9(d)(ii) — 9.1
• ✓Model answer — 0479 specimen Paper 1 Q9(c)(i) — 9.3
• ✓Model answer — 0479 specimen Paper 1 Q9(d)(i) — 9.5
• ✓Model answer — 0479 Paper 2 style — 9.1, 9.2, 9.3

Worked examples (9)

• 1Reading a trend down the columns
• 2Which area has the highest standardised rate — without calculating
• 3Wording the follow-through conclusion
• 4What a comparison of crude rates does and does not license
• 5Equal crude rates, very different standardised rates
• 6Explaining a reversal between crude and standardised rates
• 7When you cannot read the answer off the table
• 8The limitation: whose rate is a standardised rate?
• 9Choosing the right rate for the question asked

Model answers (9)

• ✓Model answer — 0479 specimen Paper 1 Q9(a) — 9.4
• ✓Model answer — 0479 specimen Paper 1 Q9(b) — 9.4
• ✓Model answer — 0479 specimen Paper 1 Q9(c)(ii) — 9.4
• ✓Model answer — 0479 Paper 2 style — 9.4
• ✓Model answer — 0479 Paper 2 style — 9.4 (AO2)
• ✓Model answer — 0479 Paper 1 style — 9.4 (AO2)
• ✓Model answer — 0479 Paper 2 style — 9.4
• ✓Model answer — 0479 Paper 2 style — 9.4 (AO2)
• ✓Model answer — 0479 Paper 1 style — 9.4 (AO2)