Table 3.

Comparison of Participants Categorized as Experiencing Precarious Employment With Those in Vulnerable, Stable, or Secure Employment

Questions and No. of Items EndorsedSEN (95% CI)SPEC (95% CI)PPV (95% CI)NPV (95% CI)ROC (95% CI)LR+ (95% CI)LR− (95% CI)OR (95% CI
Are you currently employed in a casual, short-term or temporary position?163.6 (50.9-75.1)72.52 (64.0-80.0)53.8 (42.2-65.2)79.8 (71.5-86.6)0.681 (0.61 1-0.751)2.32 (1.66-3.23)0.501 (0.358-0.702)4.62 (2.46-8.66)
Do you feel fearful that you could be fired if you raised employment concerns?122.6 (12.9-35.0)86.2 (79.0-91.6)43.8 (26.4-62.3)70.0 (62.3-77.0)0.544 (0.483-0.604)1.63 (0.869-3.06)0.899 (0.773-1.05)1.81 (0.845-3.90)
Does your pay vary a lot from month to month?150.7 (38.2-63.2)82.6 (75.0-88.6)59.6 (45.8-72.4)76.8 (68.9-83.4)0.667 (0.598-0.735)2.91 (1.88-4.52)0.596 (0.462-0.770)4.88 (2.52-9.39)
Endorsed 1, 2, or 3 domains282.1 (70.8-90.4)55.6 (46.8-64.2)48.2 (38.8-57.8)86.0 (76.9-92.6)0.689 (0.626-0.751)1.85 (1.48-2.31)0.322 (0.189-0.549)5.75 (2.84-1 1.6)
Endorsed 2 or 3 domains240.3 (28.5-53.0)89.5 (83.0-94.1)65.9 (49.4-79.9)74.8 (67.4-81.4)0.649 (0.584-0.714)3.84 (2.15-6.80)0.667 (0.543-0.819)5.74 (2.76-1 1.9)
  • LR− = negative likelihood ration; LR+ = positive likelihood ratio; NPV = negative predictive value; OR = odds ratio; PPV = positive predictive value; PEPSO = Poverty and Employment Precarity in Southern Ontario; ROC = receiver operating characteristic; SEN = sensitivity; SPEC = specificity.

  • 1 Answered yes to this question in the PEPSO Employment Precarity Index.

  • 2 Participants categorized as experiencing precarious employment by the PEPSO index were identified by endorsing 2 or 3 of the screening questions.