You will be shown the abstract of a medical clinical trial report. Your task is to extract all the findings from this report into a JSON array. Each finding should contain the following five elements:

- Intervention: The medical intervention being tested. This should be a text span copied from the input passage.
- Comparator: The baseline against which the intervention is being evaluated. This should be a text span copied from the input passage. If no comparator is reported, set to `null`.
- Outcome: The medical outcome whose effect is being measured. This should be a text span copied from the input passage.
- Effect: The effect of the intervention on the outcome, relative to the comparator. The effect should be one of the following three values: ("significantly increased", "significantly decreased", "no significant difference").
- Evidence: The evidence for the effect. This should be a text span copied from the input passage.

Please format your output as a JSON array. Each entry in the output should be an array containing the 5 elements listed above, in the following order: [<intervention>, <comparator>, <outcome>, <effect>, <evidence>].

For example, an output with two findings might read:
```
[["aspirin", "placebo", "headache severity", "significantly decreased", "Mean headache severity was significantly decreased in the aspirin group compared to the placebo group (p < 0.05)."], ["aspirin", "placebo", "weight loss", "no significant difference", "We did not observe any difference in weight loss between the group given aspirin relative to the control group"]]
```

There are 3 finding(s) in the abstract below. Please extract them. Output only the JSON array with these 3 findings. Do not include any additional text.

Abstract:
ABSTRACT.OBJECTIVE: To determine if a programme of progressive resistance exercise, mobilisation and orientation, in addition to usual care, was superior to usual care alone in the prevention of incident delirium in older hospitalised patients.

ABSTRACT.DESIGN: A randomised controlled trial.

ABSTRACT.SETTING: The study was performed at a secondary referral hospital in Melbourne, Australia between May 2005 and December 2007.

ABSTRACT.PARTICIPANTS: 648 consecutive medical inpatients aged 65 years or older who had been in hospital for less than 48 h and who did not have delirium.

ABSTRACT.INTERVENTION: Participants were randomly allocated to a twice-daily programme of progressive resistance exercise tailored to individual ability, mobilisation and orientation in addition to usual care or to usual care alone.

ABSTRACT.MEASUREMENTS: Delirium was measured using the Confusion Assessment Method at baseline and every 48 h until discharge. Secondary outcome measures were severity and duration of delirium, discharge destination and length of stay.

ABSTRACT.RESULTS: Delirium occurred in 4.9% (95% CI 2.3% to 7.3%) of the intervention group (15/305) and in 5.9% (20/339; 95% CI 3.8% to 9.2%) of the group receiving usual care. No difference was observed between groups (χ2; p=0.5). The intervention had no effect on delirium duration, severity, discharge destination or length of stay.

ABSTRACT.CONCLUSION: A programme of progressive resistance exercise and orientation was not effective in reducing incident delirium in hospitalised elderly patients.

Findings:
[["mobilisation and orientation in addition to usual care", "usual care alone", "Delirium", "no significant difference", "Delirium occurred in 4.9% (95% CI 2.3% to 7.3%) of the intervention group (15/305) and in 5.9% (20/339; 95% CI 3.8% to 9.2%) of the group receiving usual care. No difference was observed between groups (\u03c72; p=0.5). The intervention had no effect on delirium duration, severity, discharge destination or length of stay."], ["mobilisation and orientation in addition to usual care", "usual care alone", "duration of delirium,  length of stay", "no significant difference", "The intervention had no effect on delirium duration, severity, discharge destination or length of stay."], ["mobilisation and orientation in addition to usual care", "usual care alone", "Rates of delirium", "no significant difference", "Delirium occurred in 4.9% (95% CI 2.3% to 7.3%) of the intervention group (15/305) and in 5.9% (20/339; 95% CI 3.8% to 9.2%) of the group receiving usual care. No difference was observed between groups (\u03c72; p=0.5)."]]