Duration of employment (y) | Nursing staff | Non-nursing staff | |||||
---|---|---|---|---|---|---|---|
n | Percentage of seronegative workers | n | Percentage of seronegative workers | ||||
0–4 | 544 | 0.92 | 380 | 3.16 | |||
5–9 | 723 | 0.83 | 381 | 2.36 | |||
10–14 | 504 | 0.60 | 315 | 2.22 | |||
15–19 | 524 | 0.38 | 286 | 2.45 | |||
20–24 | 369 | 1.63 | 215 | 2.33 | |||
⩾25 | 292 | 3.08 | 172 | 0.58 | |||
Total | 2956 | 1.05 | 1749 | 2.34 |