Table 3.
Correlation between attitude and perceived barriers survey items and initiation of low-Vt ventilation
| Item | Attending Physicians |
Nurses |
Respiratory Therapists |
|||
|---|---|---|---|---|---|---|
| Correlation Coefficient* | P Value | Correlation Coefficient* | P Value | Correlation Coefficient* | P Value | |
| Attitude toward low-Vt ventilation | ||||||
| What percentage of your patients with ARDS warrant treatment with LTVV based on the best available evidence? | −0.29 | 0.85 | 0.057 | 0.47 | 0.072 | 0.62 |
| What percentage of your patients with ARDS have contraindications to receiving LTVV? | −0.28 | 0.058 | 0.17 | 0.031 | −0.28 | 0.044 |
| How strong do you believe the evidence is that your patients with ARDS will benefit from LTVV? | 0.19 | 0.22 | 0.044 | 0.57 | 0.0045 | 0.98 |
| In your opinion, how large is the benefit of LTVV in reducing mortality for your ARDS patients? | 0.12 | 0.43 | −0.033 | 0.67 | 0.0082 | 0.95 |
| Level of agreement or disagreement: I will only order/administer LTVV if I am certain my patient has ARDS. | −0.0020 | 0.99 | −0.13 | 0.086 | −0.088 | 0.54 |
| Perceived barriers to low-Vt ventilation | ||||||
| Level of agreement or disagreement: It is easy for me to obtain all the information I need to determine whether a patient has ARDS. | −0.16 | 0.29 | −0.034 | 0.66 | −0.033 | 0.82 |
| Level of agreement or disagreement: It is easy to make sure a patient is receiving LTVV. | −0.22 | 0.15 | 0.10 | 0.19 | 0.23 | 0.10 |
| Level of agreement or disagreement: It is easy to order [nurses/respiratory therapists: initiate and administer] LTVV. | −0.22 | 0.14 | 0.025 | 0.75 | 0.16 | 0.26 |
| How long does it usually take from the time a patient clinically develops ARDS to the time you receive all the information needed to make a diagnosis of ARDS? | −0.26 | 0.083 | 0.036 | 0.65 | 0.21 | 0.13 |
| How often issue delays diagnosis of ARDS or decision to treat with LTVV: obtaining a chest radiograph and being notified of the results. | −0.17 | 0.28 | — | — | — | — |
| How often issue delays diagnosis of ARDS or decision to treat with LTVV: obtaining an arterial blood gas and being notified of the results. | 0.0086 | 0.96 | — | — | — | — |
| How often issue delays diagnosis of ARDS or decision to treat with LTVV: finding time to review all the patient’s records and decide whether to make a diagnosis of ARDS. | 0.040 | 0.79 | — | — | — | — |
| How often issue delays diagnosis of ARDS or decision to treat with LTVV: not promptly recognizing that a patient has ARDS even when all data are available and the criteria appear to be met. | 0.13 | 0.39 | — | — | — | — |
| How often issue delays diagnosis of ARDS or decision to treat with LTVV: the time from ordering LTVV to your patient receiving it. | −0.20 | 0.20 | — | — | — | — |
Definition of abbreviations: ARDS = acute respiratory distress syndrome; LTVV = low-Vt ventilation.
*
Spearman correlation coefficient.