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Table 4 Accuracy of self-perceived BMI compared with actual BMI category among 508 consecutive patients a

From: Self-perceived vs actual and desired weight and body mass index in adult ambulatory general internal medicine patients: a cross sectional study

 

Actual BMI category

 

Accuracy of self-perceived BMI

Underweight

Normal

Overweight

Obese

P valueb

All patients (n = 508)

    

<.001

  Accurate

9 (82)

98 (71)

112 (58)

32 (19)

 

  Inaccurate

2 (18)

40 (29)

82 (42)

132 (81)

 

Women (n = 257)

    

<.001

  Accurate

9 (82)

65 (69)

62 (76)

17 (24)

 

  Inaccurate

2 (18)

29 (31)

19 (24)

54 (76)

 

Men (n = 251)c

    

<.001

  Accurate

NA

33 (75)

50 (44)

15 (16)

 

  Inaccurate

NA

11 (25)

63 (56)

78 (84)

 
  1. Abbreviations: BMI body mass index, NA not applicable.
  2. aAcross all 4 categories and for trend.
  3. bValues are percentages of patients.
  4. cData were missing for 1 patient.