Within Country (UK)	1(b) to 1(d)
Numerator 1b = 763
Denominator 1b = 19
Numerator 1d (combined) = 347
Denominator 1d = 10 + 9 = 19
Group 1 Incidence rate	39.105
95% Confidence Interval	36.344 to 42.021
Group 2 Incidence rate	18.263
95% Confidence Interval	16.392 to 20.289
Incidence rate difference	20.842
95% Confidence Interval	17.436 to 24.248
p-value	p < 0.0001
Incidence rate ratio	2.1412
95% Confidence Interval	1.8825 to 2.4393
p-value	p < 0.0001