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Table 2 Correct perception, misperception, and kappa statistics of self-reported weight compared to actual weight across groups

From: Weight self-perception and weight loss attempts in Chinese cardiovascular patients and non-cardiovascular patients: evidence from a population-based study

 

Total n = 2690

Non-CVD patients n = 2533

CVD patients n = 157

Correct perception

1809 (67.2)

1702 (67.2)

107 (68.2)

Misperception

881 (32.8)

831 (32.8)

50 (31.8)

Underestimation (Negative)a

585 (21.7)

550 (21.7)

35 (22.3)

Overestimation (Positive)b

296 (11.0)

281 (11.1)

15 (9.6)

Kappac

0.439

0.436

0.474

  1. aUnderestimation means self-reported weight status is lower than the actual weight status
  2. bOverestimation means self-reported weight status is higher than the actual weight status
  3. cKappa statistics were estimated to check the consistency between correct perception and misperception separately for CVD and non-CVD patients
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BMC Public Health

ISSN: 1471-2458

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