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Table 3 Baseline factors associated with incomplete follow-up and rejoining: multivariable logistic regression

From: Sample attrition analysis in a prospective cohort study of medical graduates in China

Variables (1) (2) (3)
All sample Graduates of 2015-2017 Incomplete samples
OR 95% CI OR 95% CI OR 95% CI
Demographic information
  Types of students (0=NCSP) 0.40*** (0.33 - 0.48) 0.37*** (0.29 - 0.46) 1.52** (1.05 - 2.19)
  Male (0=female) 1.07 (0.90 - 1.25) 1.13 (0.93 - 1.39) 0.99 (0.72 - 1.37)
  Rural background (0=urban) 0.97 (0.80 - 1.18) 0.99 (0.78 - 1.26) 1.26 (0.86 - 1.85)
  Highest education level of parents (0=low middle school and below) 1.02 (0.85 - 1.22) 1.00 (0.80 - 1.24) 1.19 (0.84 - 1.70)
  Occupation of father (0=not farmer) 0.89 (0.74 - 1.08) 0.83 (0.66 - 1.04) 1.33 (0.91 - 1.94)
  Pressure from tuition and other fee during school (0=no) 0.76 (0.57 - 1.01) 0.65** (0.45 - 0.95) 0.97 (0.57 - 1.65)
  Household size (0=3 and below) 0.84** (0.71 - 1.00) 0.90 (0.73 - 1.11) 0.83 (0.58 - 1.17)
Attitudes towards medical study
  Studying medicine was first choice (0=no) 0.78** (0.65 - 0.95) 0.81 (0.64 - 1.01) 1.13 (0.79 - 1.62)
  Planning to pursue postgraduate study(0=no) 0.90 (0.75 - 1.08) 0.86 (0.69 - 1.08) 0.83 (0.58 - 1.19)
  Willing to participate in residency training(0=no) 0.80** (0.66 - 0.98) 0.76** (0.60 - 0.97) 0.93 (0.64 - 1.36)
  Satisfied with medical education received(0=no) 0.95 (0.81 - 1.12) 0.99 (0.81 - 1.21) 0.91 (0.65 - 1.26)
  Understanding compulsory services program (0=no) - - - - - -
Preferences of career development
  Desired to work in public hospitals above county level after graduation (0=no) 1.00 (0.84 - 1.20) 1.06 (0.85 - 1.31) 0.89 (0.63 - 1.25)
  Confidence of passing NMLE within one year (0=no) 0.99 (0.84 - 1.16) 1.03 (0.84 - 1.26) 1.14 (0.82 - 1.59)
  Income was the primary consideration when applying for jobs (0=no) 1.10 (0.93 - 1.31) 1.08 (0.87 - 1.34) 0.89 (0.63 - 1.26)
  Contract-signing place was hometown (0=no) - - - - - -
Response behaviors in baseline
  Providing scores for university entrance exam (0=no) 0.82** (0.69 - 0.97) 0.76** (0.62 - 0.94) 1.64*** (1.15 - 2.33)
  Providing contact information (0=no) 0.46*** (0.32 - 0.66) 0.36*** (0.22 - 0.60) 0.82 (0.43 - 1.54)
  Providing household income (0=no) 0.60*** (0.43 - 0.84) 0.60** (0.40 - 0.89) 0.87 (0.49 - 1.54)
  Constant 17.33*** (8.89 - 33.81) 27.90*** (12.00 - 64.87) 0.22*** (0.07 - 0.65)
  Number of observations 3,310   1,930   840  
  1. Notes: (1) Source: Compulsory Services Program 2015-2020 wave; (2) Robust 95% CI in parentheses, *** p<0.01, ** p<0.05 (3) Logistic regression was conducted, with odds ratio reported. The schools and years of graduation for each sub-cohort were controlled for in all regressions to control for cohort effects. (4) The dependent variable was dichotomous, 1=incomplete and 0=complete; in regression 3, the incomplete samples included always-out, rejoin, and other, and the dependent variable was 1 for rejoin and 0=always-out or other. (5) NMLE China National Medical Licensing Examination; OR odds ratio; CI confidence interval; NA not applicable; NCSP non-compulsory services program