Table 3 Subgroup analysis based on age, sex and season^a

1.10 (1.05 to 1.14)

1.08 (1.02 to 1.15)

1.05 (0.97 to 1.13)

1.11 (1.10 to 1.13)

1.08 (1.03 to 1.13)

1.02 (0.89 to 1.13)

1.11 (1.08 to 1.14)

1.10 (1.05 to 1.16)

1.01 (0.97 to 1.05)

1.11 (1.08 to 1.13)

1.06 (1.02 to 1.11)

1.06 (1.03 to 1.10)

1.02 (1.00 to 1.04)

1.05 (0.99 to 1.11)

1.00 (0.96 to 1.04)

1.09 (1.07 to 1.12)

1.05 (1.01 to 1.09)

1.01 (0.98 to 1.04)