Table 2 Incidence Rate Ratios (IRR) with 95% confidence intervals for effects of treatment, time and treatment-time interaction on behaviour and affect scores after taking account of age, gender and dementia severity
Behaviour | Affect | ||||||
|---|---|---|---|---|---|---|---|
Positive | Negative | ||||||
IRR | p value | IRR | p value | IRR | p value | ||
Treatment | Lavender compared to control | 0.884 (0.778-1.004) | 0.057 | 1.072 (0.848-1.355) | 0.56 | 0.891 (0.504-1.573) | 0.690 |
Time | First 30 minutes post-exposure compared to pre- exposure | 0.899 (0.793-1.020) | 0.097 | 0.900 (0.706-1.147) | 0.393 | 0.960 (0.550-1.675) | 0.887 |
Second 30 minutes post-exposure compared to pre- exposure | 0.858 (0.755-0.974) | 0.018 | 0.865 (0.678-1.106) | 0.248 | 0.641 (0.348-1.179) | 0.153 | |
Treatment- time interactions | Lavender x first 30 min. post-exposure | 0.961 (0.798-1.157) | 0.672 | 1.020 (0.726-1.433) | 0.910 | 0.848 (0.371-1.938) | 0.696 |
Lavender x second 30 min post-exposure | 1.045 (0.869-1.259) | 0.636 | 0.954 (0.675-1.348) | 0.790 | 0.687 (0.269-1.750) | 0.431 | |