Table 1 Demographic and clinical characteristics of the different cohorts.

From: Protection against Omicron BA.1/BA.2 severe disease 0–7 months after BNT162b2 booster

Group

Total

Female

Male

60–69

70–79

80+

General Jewish

Ultra-Orthodox Jewish

Arabs

2 Doses 4+ months N = 111,531 Person-days at risk = 3,858,236

% person days at risk

100%

60.80%

39.20%

53.50%

28.00%

18.50%

63.20%

5.70%

31.10%

# severe Covid-19 (rate)

469 (12.2)

236 (10.1)

233 (15.4)

100 (4.8)

142 (13.1)

227 (31.9)

281 (11.5)

18 (8.2)

170 (14.2)

3 Doses 0–1 months N = 31,955 Person-days at risk = 446,008

% person days at risk

100%

59.80%

40.20%

47.20%

30.00%

22.80%

77.80%

5.10%

17.10%

# severe Covid-19 (rate)

29 (6.5)

12 (4.5)

17 (9.5)

5 (2.4)

7 (5.2)

17 (16.7)

22 (6.3)

2 (8.8)

5 (6.5)

3 Doses 1–2 months N = 40,172 Person-days at risk = 524,213

% person days at risk

100%

60.40%

39.60%

51.00%

29.70%

19.30%

77.70%

4.90%

17.40%

# severe Covid-19 (rate)

18 (3.4)

11 (3.5)

7 (3.4)

3 (1.1)

5 (3.2)

10 (9.9)

12 (2.9)

1 (3.9)

5 (5.5)

3 Doses 2–3 months N = 43,689 Person-days at risk = 683,876

% person days at risk

100%

61.70%

38.30%

51.70%

29.10%

19.20%

76.90%

4.60%

18.50%

# severe Covid-19 (rate)

30 (4.4)

16 (3.8)

14 (5.3)

4 (1.1)

8 (4)

18 (13.7)

25 (4.8)

1 (3.2)

4 (3.2)

3 Doses 3–4 months N = 96,809 Person-days at risk = 2,286,002

% person days at risk

100%

59.60%

40.40%

57.00%

27.40%

15.60%

78.10%

4.20%

17.70%

# severe Covid-19 (rate)

104 (4.5)

45 (3.3)

59 (6.4)

17 (1.3)

29 (4.6)

58 (16.3)

76 (4.3)

4 (4.2)

24 (5.9)

3 Doses 4–5 months N = 253,259 Person-days at risk = 7,262,548

% person days at risk

100%

57.00%

43.00%

56.40%

28.80%

14.80%

81.60%

4.40%

13.90%

# severe Covid-19 (rate)

353 (4.9)

155 (3.7)

198 (6.3)

62 (1.5)

111 (5.3)

180 (16.7)

270 (4.6)

19 (5.9)

64 (6.3)

3 Doses 5–6 months N = 683,273 Person-days at risk = 13,018,739

% person days at risk

100%

54.70%

45.30%

51.80%

32.40%

15.80%

84.60%

4.80%

10.60%

# severe Covid-19 (rate)

561 (4.3)

220 (3.1)

341 (5.8)

89 (1.3)

171 (4.1)

301 (14.7)

458 (4.2)

28 (4.5)

75 (5.4)

3 Doses 6–7 months N = 521,400 Person-days at risk = 5,942,383

% person days at risk

100%

53.60%

46.40%

49.40%

34.40%

16.20%

85.60%

5.00%

9.50%

# severe Covid-19 (rate)

75 (1.3)

21 (0.7)

54 (2)

13 (0.4)

24 (1.2)

38 (3.9)

49 (1)

4 (1.4)

22 (3.9)

4 Doses 0–2 months N = 515,029 Person-days at risk = 20,924,765

% person days at risk

100%

52.60%

47.40%

32.00%

41.70%

26.30%

93.90%

2.70%

3.50%

# severe Covid-19 (rate)

280 (1.3)

113 (1)

167 (1.7)

28 (0.4)

83 (1)

169 (3.1)

252 (1.3)

6 (1.1)

22 (3)

  1. Risk days and infections are calculated for the study period, January 16–March 12, 2022. Severe disease cases were defined as a severe illness occurring within 14 days of an infection confirmed during the study period. Rates are per 100,000 person-days. The total number (N) of individuals that contributed at least one risk day to a cohort appears in the first column where an individual may contribute to more than one cohort. The table presents in detail the proportion of person-days at risk (for the confirmed infection analysis) instead of the number of individuals, as people move between cohorts. The table presents the percentage of days at risk contributed for each sub-population (e.g., female and male) in each cohort.