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Table 4 Increments in interview time (in minutes) associated with the variation in the respective explanatory variables.

From: Factors affecting study efficiency and item non-response in health surveys in developing countries: the Jamaica national healthy lifestyle survey

  Increment in Interview time
Explanatory variable Weighted estimates Un-weighted estimates
Age* 0.06 (0.013, 0.11) 0.05 (0.01, 0.09)
Employed 1.08 (-0.61, 2.77) 0.5 (-1.07, 2.11)
Female 1.2 (-0.14, 2.61) 0.8 (-0.76, 2.27)
Socioeconomic Status   
   Middle 0.3 (-2.50, 3.04) 0.4 (-1.13, 1.90)
   High 8.2 (-1.55, 17.94) 9.0 (6.38, 11.60)
Regional Health Authority   
   North East 7.8 (-4.73, 20.32) 7.4 (5.24, 9.59)
   South -4.3 (-9.50, 0.87) -4.5 (-6.44, -2.65)
   West -1.8 (-8.66, 5.07) -2.2 (-4.10, -0.29)
  1. Coefficients for employed, female, socioeconomic status and the health regions are increments relative to the unemployed, males, low status, and South East health region, respectively.