Volume 10, Number 8—August 2004
Research
SARS in Three Categories of Hospital Workers, Hong Kong
Joseph T.F. Lau*
, Xilin Yang*, P.C. Leung*, Louis Chan*, Eliza Wong*, Carmen Fong*, and H.Y. Tsui*
, Xilin Yang*, P.C. Leung*, Louis Chan*, Eliza Wong*, Carmen Fong*, and H.Y. Tsui*Table 1
Number of hospital workers, SARS-affected hospital workers, and SARS patients admitted to hospitals and attack rates
| Hospital no.a | No. of SARS patients admitted to hospitals | No. of hospital staff who contracted SARS |
Attack rates (%) |
||||||
|---|---|---|---|---|---|---|---|---|---|
| Group N | Group S | Group O | Overalla | Group N | Group S | Group O | Overallb | ||
| 1 |
3 |
0 |
0 |
2 |
2 |
0.00 |
0.00 |
0.73 |
0.18 |
| 2 |
7 |
0 |
0 |
0 |
0 |
0.00 |
0.00 |
0.00 |
0.00 |
| 3 |
17 |
6 |
2 |
0 |
8 |
1.19 |
0.96 |
0.00 |
0.79 |
| 4 |
17 |
0 |
0 |
0 |
0 |
0.00 |
0.00 |
0.00 |
0.00 |
| 5 |
24 |
1 |
3 |
0 |
4 |
0.33 |
1.29 |
0.00 |
0.64 |
| 6 |
29 |
7 |
3 |
1 |
11 |
0.95 |
0.83 |
0.23 |
0.71 |
| 7 |
36 |
2 |
0 |
0 |
2 |
0.12 |
0.00 |
0.00 |
0.07 |
| 8 |
53 |
1 |
2 |
1 |
4 |
0.26 |
1.80 |
0.41 |
0.54 |
| 9 |
82 |
5 |
5 |
1 |
11 |
0.42 |
1.11 |
0.18 |
0.50 |
| 10 |
83 |
8 |
6 |
0 |
14 |
0.51 |
1.15 |
0.00 |
0.48 |
| 11 |
85 |
6 |
6 |
1 |
13 |
0.47 |
1.41 |
0.14 |
0.54 |
| 12 |
114 |
18 |
14 |
4 |
36 |
3.58 |
6.93 |
1.37 |
3.61 |
| 13 |
128 |
15 |
7 |
0 |
22 |
0.87 |
1.42 |
0.00 |
0.68 |
| 14 |
188 |
13 |
14 |
2 |
29 |
1.01 |
3.36 |
0.26 |
1.17 |
| 15 |
326 |
64 |
54 |
2 |
120 |
4.66 |
13.30 |
0.21 |
4.38 |
| 16 |
563 |
35 |
18 |
10 |
63 |
2.76 |
3.92 |
1.53 |
2.64 |
| Pooled |
1,755 |
181 |
134 |
24 |
339 |
1.21 |
2.73 |
0.29 |
1.20 |
| p value |
< 0.001c |
< 0.001c |
< 0.001c |
< 0.001c |
|||||
| Spearman correlation coefficients | 0883*** | 0.928*** | 0.525* | 0.914* | 0.737* | 0.865*** | 0.390 | 0.686** | |
aAll hospital workers, including all three groups (group N, nurses; group S, nonmedical support staff; and group O, other technical and medical staff).
bAll hospitals that had at least admitted one SARS patient.
cp values derived from Pearson chi-square test and comparing the attack rates among all the 16 hospitals.
dp values derived from Fisher-Freeman-Halton test and comparing the attack rates among all the 16 hospitals: *, p < 0.05; **, p < 0.01; and ***, p < 0.001.
