Table 5.

 Risk of death from any cause in vaccinated versus unvaccinated individuals in subcohorts vaccinated in early and late phases of H1N1 vaccination campaign in Stockholm county, Sweden

Vaccination status	No of people	No of deaths	Hazard ratio (95% CI)*
			Model 1	Model 2
All vaccinated	1 024 019	6605	0.95 (0.92 to 0.99)	0.85 (0.82 to 0.89)
≤45 days	446 770	4881	1.12 (1.08 to 1.16)	0.94 (0.91 to 0.98)
>45 days	577 249	1724	0.67 (0.63 to 0.70)	0.68 (0.64 to 0.71)

Both models were adjusted for age, sex, and socioeconomic status. Model 2 was further adjusted for healthcare consumption (number of hospital admissions and visits to specialist care one year before pandemic period).

*Cox’s regression analysis.