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 2
Mean and median attack rates of the 16 hospitals by job categories
| Mean of attack rates (%) | SD | Median of attack rates (%) | Interquartertile range | Range | |
|---|---|---|---|---|---|
| Group N |
1.07 |
1.38 |
0.49 |
0.99 |
0.00–4.66 |
| Group S |
2.34 |
3.43 |
1.22 |
2.76 |
0.00–13.30 |
| Group O |
0.32 |
0.49 |
0.16 |
0.37 |
0.00–1.53 |
| Overalla |
1.06 |
1.31 |
0.59 |
0.82 |
0.00–4.38 |
| p value | 0.035b | 0.015c |
aOverall: all the hospital workers, including all three groups (group N, nurses; group S, nonmedical support staff; group O, other technical and medical staff)
bp values for testing differences among group N, S, and O (ANOVA).
cp values for testing differences among group N, S, and O (Kruskal-Wallis test).
