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Table 2 Data quality and item-rest correlations of the Dutch 13-item PAM (N = 1837)

From: Measuring patient activation in the Netherlands: translation and validation of the American short form Patient Activation Measure (PAM13)

Item N Mean PAM score SD Median % missing values % not applicable Item-rest correlation
1 1788 3.32 0.71 3 1.0 1.7 0.49
2 1542 3.20 0.69 3 3.3 12.8 0.50
3 1716 3.10 0.73 3 1.5 5.1 0.60
4 1736 3.20 0.66 3 0.4 5.1 0.54
5 1815 3.24 0.60 3 0.5 0.7 0.62
6 1805 3.29 0.61 3 0.9 0.9 0.55
7 1487 3.30 0.57 3 1.6 17.5 0.62
8 1771 3.23 0.67 3 0.9 2.7 0.66
9 1733 3.10 0.67 3 1.4 4.3 0.64
10 1565 3.04 0.66 3 1.7 13.1 0.51
11 1694 2.96 0.70 3 1.0 6.8 0.61
12 1667 2.62 0.75 3 1.1 8.1 0.50
13 1678 2.84 0.70 3 1.0 7.6 0.46