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Table 2 Description of the selected variables over five waves

From: The effects of smoking, regular drinking, and unhealthy weight on health care utilization in China

  Wave 1 Wave 2 Wave 3 Wave 4 Wave 5
2010 2012 2014 2016 2018
Outpatient care utilization (%) 18.37 20.90 24.19 24.03 27.01
Inpatient care utilization (%) 7.33 8.60 10.95 12.94 15.05
Smoking status (%)
 Never smokers 62.70 60.50 59.52 58.93 58.52
 Current smokers 31.14 30.58 29.87 28.58 29.26
 Former smokers 6.16 8.92 10.61 12.49 12.22
 Regular drinking (%) 16.77 16.99 17.04 16.46 16.88
Body mass index (%)
 Underweight 7.63 7.88 6.81 6.66 5.53
 Healthy weight 49.73 46.70 43.85 42.43 40.50
 Overweight 35.24 36.26 39.10 39.42 41.84
 Obese 7.41 9.16 10.24 11.50 12.13
 Observations 12,652 12,652 12,652 12,652 12,652