Table 4 Overall attack rate, per theme

Limited

Good

Ample

RAT availability

19.37 (10.035–38.73)

27.11 (3.56–38.61)

15.22 (5.84-30)

NS

(2) = 0.285

PPE availability

16.96 (3.11–21.78)

27.39 (9.49–38.61)

13.86 (4.74–21.89)

NS

(2) = 3.976

Delayed

Next day

Same day

Communication

21.78 (7.01–27.39)

27.55 (10.34–36.76)

8.58 (4.06–17.93)

0.0175

(2) = 8.093

Detection of cases

23.96 (10.04–27.25)

24.42 (9.92–39.75)

13.77 (4.06–20.79)

0.0296

(2) = 7.042

None

Mostly

Complete

Staff cohorting

31.47 (21.52–50.59)

14.21 (5.17–27.11)

11.22 (3.77–18.87)

0.0073

(2) = 9.831

Cases mostly excluded

Cases fully excluded

Close contacts excluded

Staff exclusion

27.11 (16.96–56.90)

16.20 (5.70-30.54)

3.85 (1.03–6.67)

NS

(2) = 4.741

Extreme shortage

Moderate shortage

No shortage

Staff shortages

38.61 (21.78–51.67)

17.72 (8.23–27.39)

3.39 (2.56–6.13)

< 0.0001

(2) = 19.98