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. 2013 Mar 15;11:5. doi: 10.1186/1478-7547-11-5

Table 4.

Regression results from national health interview survey (Functionality index)

 
 All adults (age 18+)
 Employed adults (age 18-74)
  Employed(1) Receives SSI(1) Household income ($)(2) Missed work days(3)
Intercept
  
  
 4,231
  
Male
 1.75*
 0.86*
 2,175*
 0.73*
Age 40-44 vs. <40
 1.51*
 1.47*
 7,198*
 1.12*
Age 45-49 vs. <40
 1.54*
 1.71*
 7,869*
 1.10*
Age 50-54 vs. <40
 1.39*
 1.95*
 7,889*
 1.10*
Age 55-59 vs. <40
 0.95*
 2.15*
 7,336*
 1.18*
Age 60-64 vs. <40
 0.45*
 2.08*
 5,851*
 1.11
Age 65-69 vs. <40
 0.16*
 1.58*
 3,709*
 1.06*
Age 70+ vs. <40
 0.05*
 0.77*
 (1,810) *
 0.84*
Physical Function Index
 1.02*
 0.98*
 180*
 0.97*
Difficulty sitting-vs. no difficulty
  
  
  
  
 Only a little difficult
 0.94
 1.06
 87
 1.10
 Somewhat difficult
 0.81*
 1.32*
 189
 1.14*
 Very difficult
 0.72*
 1.57*
 1,278
 1.23*
 Can't do at all
 0.50*
 1.35*
 (1,323)
 1.19
Difficulty reaching-vs. no difficulty
  
  
  
  
 Only a little difficult
 0.84*
 1.09
 (361)
 1.08
 Somewhat difficult
 0.69*
 1.21*
 37
 1.19*
 Very difficult
 0.53*
 1.55*
 (1,093)
 1.11
 Can't do at all
 0.46*
 1.18
  
 2.01*
Difficulty standing-vs. no difficulty
  
  
  
  
 Only a little difficult
 0.75*
 1.47*
 (116)
 1.06
 Somewhat difficult
 0.64*
 1.65*
 (870)
 1.40*
 Very difficult
 0.47*
 2.27*
 (574)
 1.23*
 Can't do at all
 0.29*
 2.05*
 (337)
 1.28*
Has mobility difficulty due to
  
  
  
  
 Back pain
 1.09*
 1.02
 (2,116)*
 1.50*
 Joint injury
 1.14*
 0.94
 (1,185)
 2.19*
 Musculoskeletal condition
 0.86*
 1.21*
 (834)
 1.69*
 Arthritis
 1.20*
 1.15*
 (1,893)*
 1.28*
Year 2004 vs. 2010
 1.24*
 0.86
 2,302*
 1.04
Year 2005 vs. 2010
 1.22*
 0.87*
 2,362*
 1.12*
Year 2006 vs. 2010
 1.20*
 0.85*
 2,280*
 1.07*
Year 2007 vs. 2010
 1.18*
 0.95
 (2,616)*
 1.09*
Year 2008 vs. 2010
 1.13*
 0.97
 2,169*
 1.04
Year 2009 vs. 2010
 1.04*
 0.93
 557
 1.02
Highest educational attainment (comparison is no HS degree)
  
  
  
  
 High school degree
 1.45*
 0.42*
 18,262*
 1.11*
 College (baccalaureate) degree
 1.93*
 0.24*
 37,808*
 1.02
 Post baccalaureate degree
 1.96*
 0.19*
 49,722*
 0.97
 Occupation (comparison is occupation unknown)
  
  
  
  
 Management
  
  
 9,017*
 1.22*
 Finance
  
  
 7,635*
 1.36*
 Computer
  
  
 8,535*
 1.56*
 Architect
  
  
 9,342*
 1.49*
 Social Sciences
  
  
 1,828
 1.38*
 Social Services
  
  
 (4,099)*
 1.74*
 Legal
  
  
 7,877*
 1.54*
 Educate
  
  
 (1,591)*
 1.21*
 Arts
  
  
 318
 1.28*
 Health practitioner
  
  
 7,404*
 1.35*
 Healthcare support
  
  
 (3,600)*
 1.50*
 Protective services
  
  
 5,142*
 1.99*
 Food preparation
  
  
 (6,835)*
 1.26*
 Cleaning
  
  
 (5,245)*
 1.39*
 Personal care
  
  
 (4,045)*
 1.16*
 Sales
  
  
 2,178*
 1.30*
 Administrative support
  
  
 2,420*
 1.52*
 Farm
  
  
 (2,843)*
 1.34*
 Construction
  
  
 342
 1.66*
 Maintenance
  
  
 4,799*
 1.82*
 Production
  
  
 638
 1.67*
 Transport
  
  
 (287)
 1.80*
 Military
  
  
 11,409*
 0.93
Summary Statistics
 N=185,829
 N=185,829
 N=100,471
 N=115,752
  Wald=31,831* Wald=5,718* R-sq=0.265 Pearson Chi-sq =241,078

Notes: (1) Odds ratios from Logistic regression. (2) Coefficients from Ordinary Least Squares regression. Comparison group is female, under age 40, no activity limitations, year 2010, unemployed or occupation not available (for regressions that include occupation), and no high school degree. (3) Rate ratios from negative binomial regression. Comparison group is same as (2) above. * Statistically significant at the 0.05 level.