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Table 4 screening capacity of the Barthel index to identify active patients

From: Accelerometry assessed physical activity of older adults hospitalized with acute medical illness - an observational study

Definition

Threshold

AROC

Sensitivity (%)

Specificity (%)

PPV (%)

NPV (%)

1

95

0.595 (0.512–0.678)

64.4 (48.8–78.1)

54.5 (45.7–63.2)

32.6 (23.0–43.3)

81.8 (72.2–89.2)

2

95

0.692 (0.590–0.795)

85.7 (57.2–98.2)

52.8 (44.8–60.6)

13.5 (7.2–22.4)

97.7 (92.0–99.7)

3

95

0.581 (0.503–0.658)

61.0 (47.4–73.5)

55.1 (45.7–64.3)

40.4 (30.2–51.4)

73.9 (63.4–82.7)

4

96

0.642 (0.554–0.730)

66.7 (49.0–81.4)

61.7 (53.1–69.8)

30.8 (20.8–42.2)

87.9 (79.8–93.6)

  1. Results are expressed as value (95% confidence interval). AROC, area under the receiver operating curve; NPV, negative predictive value; PPV, positive predictive value. Definition 1: highest quartile of time spent in non-sedentary activities; definition 2, spending at least 20 min of moderate physical activity per day; definition 3, highest tertile of time spent in non-sedentary activities, definition 4, highest quintile of time spent in non-sedentary activities
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BMC Geriatrics

ISSN: 1471-2318

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