Table 3
Adjusted odds ratios relating selected characteristics to occasional or frequent medication error, registered nurses providing direct care to hospital patients, Canada, 2005
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| Adjusted odds ratio | 95% confidence interval | |
|---|---|---|
| Overtime (main job) | ||
| Does not usually work overtime† | 1.0 | ... |
| Usually works overtime | 1.4* | 1.0 to 1.8 |
| Hours per week (all jobs combined) | ||
| Usually works 40 hours or more per week† | 1.0 | ... |
| Usually works less than 40 hours per week | 1.0 | 0.7 to 1.3 |
| Number of jobs | ||
| One† | 1.0 | ... |
| More than one | 0.9 | 0.6 to 1.2 |
| Type of job | ||
| Full-time† | 1.1 | 0.9 to 1.5 |
| Part-time | 1.0 | ... |
| Shift usually worked | ||
| Days | 1.1 | 0.8 to 1.6 |
| Other than days† | 1.0 | ... |
| Length of shift | ||
| Less than 12 hours† | 1.0 | ... |
| 12 hours | 0.7* | 0.5 to 0.9 |
| Role Overload Index | ||
| First quartile (lowest)† | 1.0 | ... |
| Second quartile | 1.3 | 0.8 to 2.1 |
| Third quartile | 1.7* | 1.1 to 2.7 |
| Fourth quartile (highest) | 1.9* | 1.2 to 3.0 |
| Staffing and Resource Adequacy Subscale | ||
| First quartile (most adequate)† | 1.0 | ... |
| Second quartile | 1.2 | 0.8 to 2.0 |
| Third quartile | 1.7* | 1.1 to 2.7 |
| Fourth quartile (least adequate) | 2.7* | 1.6 to 4.4 |
| Nurse-Physician Working Relations Subscale | ||
| First quartile (most favourable)† | 1.0 | ... |
| Second quartile | 1.5* | 1.0 to 2.1 |
| Third quartile | 1.5* | 1.1 to 2.1 |
| Fourth quartile (least favourable) | 1.6* | 1.1 to 2.3 |
| Work stress | ||
| Lower co-worker support | 1.4* | 1.1 to 1.8 |
| Higher co-worker support† | 1.0 | ... |
| Lower supervisor support | 0.9 | 0.7 to 1.1 |
| Higher supervisor support† | 1.0 | ... |
| Lower job security | 1.7* | 1.1 to 2.7 |
| Higher job security† | 1.0 | ... |
| Higher physical demands | 1.1 | 0.8 to 1.5 |
| Lower physical demands† | 1.0 | ... |
| Job dissatisfaction | ||
| Dissatisfied | 1.0 | 0.7 to 1.5 |
| Not dissatisfied† | 1.0 | ... |
| General health | ||
| Good, very good or excellent† | 1.0 | ... |
| Fair or poor | 0.7 | 0.4 to 1.2 |
| Mental health | ||
| Good, very good or excellent† | 1.0 | ... |
| Fair or poor | 1.3 | 0.8 to 2.3 |
| Nursing education | ||
| Bachelor's degree or higher† | 1.1 | 0.9 to 1.5 |
| Other than bachelor's degree | 1.0 | ... |
| Years of experience in nursing | ||
| More than 5† | 1.4* | 1.0 to 1.9 |
| 5 or fewer | 1.0 | ... |
| † reference category | ||
| * significantly different from estimate for reference category (p < 0.05) | ||
| Note: Based on data from 3,667 respondents. Variables for clinical area of usual employment and missing role overload were included in the model; their odds ratios are not shown. | ||
| Source: Statistics Canada, 2005 National Survey of the Work and Health of Nurses. | ||
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