Table 2.

Work factors at baseline.

Factor	N	%	Mean	SD	Range
Hours of work per week
19–36	3512	86.2
> 36	564	13.8
Frequency of night shifts
Never	2075	51.3
Sometimes	1070	26.5
Rather often	267	6.6
Very often	631	15.6
Positioning patients in bed †
0	746	19.0
1–4	1674	42.6
5–9	971	24.7
10 or more	537	13.7
Supporting patients between bed and chair †
0	683	17.5
1–4	1737	44.6
5–9	983	25.2
10 or more	493	12.7
Handling heavy objects †
0	1104	28.5
1–4	2147	55.5
5–9	431	11.1
10 or more	189	4.9
Exposure to bullying previous 6 months
No	3905	96.1
Yes	158	3.9
Threats and violence			1.76	1.08	1.00 – 5.00
Requirements of physical endurance			3.64	1.16	1.00 – 5.00
Total quantitative work demands			2.89	0.75	1.00 – 5.00
Positive challenges			3.90	0.69	1.00 – 5.00
Role conflicts			2.36	0.80	1.00 – 5.00
Control of work pace			2.36	0.79	1.00 – 5.00
Participation in important decisions			3.33	0.79	1.00 – 5.00
Support from superior			3.85	1.01	1.00 – 5.00
Fairness of leadership			4.12	0.82	1.00 – 5.00
Feedback about quality of work			2.94	1.13	1.00 – 5.00
Rewards for work well done			2.21	1.21	1.00 – 5.00
Social climate			3.99	0.74	1.00 – 5.00

N = Number of respondents in each category. SD = Standard deviation.

^† Times per shift.