Table 1 The demographic characteristics of cases and controls.

From: A Case-control Study on Risk Factors for Severe Hand, Foot and Mouth Disease

Demographic characteristics a

Cases (n = 459)

Controls (n = 246)

p-value

Age, months(mean ± SD)

23.8 ± 14.8

23.6 ± 18.1

0.356

Male

299(65.1%)

162(65.9%)

0.976

Scatter children b

168(36.6%)

193(78.5%)

0.840

Floating population c

213(46.4%)

210(85.4%)

0.012

Position of residence

  

0.007

 Rural area

172(37.5%)

134(54.5%)

—

 Semi-urban area

13(2.8%)

11(4.5%)

—

 Urban area

53(11.6%)

80(32.5%)

—

  1. aExcept where otherwise indicated, values are the number (percentage) of patients with the characteristic.
  2. bScatter children refer to children who are kept and raised at home instead of being put in day care.
  3. cFloating population refers to migrants without local household registration status (hukou).
Back to article page