Table 3.
Distribution of performance means according to study variables
| Study Variables | Low back pain |
Total |
||||
|---|---|---|---|---|---|---|
| No |
Yes |
|||||
| Mean | 95 %CI | Mean | 95 %CI | Mean | 95 %CI | |
| Region | ||||||
| Taparacá | 31.0 | 27.42, 34.58 | 42.9 | 40.92, 45.02 | 33.9 | 30.96, 36.86 |
| Antofogasta | 25.8 | 23.27, 28.36 | 37.6 | 34.69, 40.45 | 27.4 | 25.01, 29.84 |
| Atacama | 32.6 | 30.05, 35.23 | 45.7 | 42.79, 48.60 | 35.8 | 33.86, 37.80 |
| Coquimbo | 33.2 | 31.19, 35.15 | 44.8 | 42.94, 46.67 | 35.5 | 33.72, 37.30 |
| Valparaiso | 31.5 | 30.10, 32.89 | 42.7 | 40.83, 44.61 | 33.6 | 32.32, 34.83 |
| O´higgins | 28.0 | 25.60, 30.48 | 43.7 | 41.07, 46.28 | 31.5 | 29.53, 33.53 |
| Maule | 33.6 | 31.72, 35.44 | 44.5 | 42.33, 46.74 | 35.1 | 34.41, 36.80 |
| Biobio | 31.2 | 29.86, 32.56 | 44.7 | 42.97, 46.39 | 34.6 | 33.37, 35.81 |
| La Araucanía | 32.5 | 30.47, 34.51 | 42.7 | 40.11, 45.40 | 35.3 | 33.41, 37.15 |
| Los Lago | 35.1 | 33.29, 37.00 | 44.3 | 41.57, 47.02 | 36.9 | 35.22, 38.53 |
| Aysen | 29.0 | 26.55, 31.46 | 41.2 | 37.27, 45.24 | 31.4 | 29.21, 33.52 |
| Magallanes y La A.C | 35.7 | 31.87, 39.48 | 45.2 | 41.57, 48.79 | 37.4 | 34.18, 40.57 |
| Metropolitana | 30.8 | 29.82, 31.84 | 43.9 | 42.71, 45.15 | 33.9 | 32.99, 34.89 |
| Los Rios | 34.2 | 31.95, 36.49 | 44.4 | 41.57, 47.14 | 36.4 | 34.35, 38.41 |
| Arica y Parinacota | 36.9 | 34.93, 39.06 | 44.5 | 41.64, 47.38 | 38.7 | 37.40, 39.98 |
| Sex | ||||||
| Male | 28.3 | 27.58, 29.10 | 41.5 | 40.54, 42-43 | 31.0 | 30.35, 31.72 |
| Female | 34.4 | 33.73, 35.05 | 45.7 | 44.84, 46.52 | 37.0 | 36.45, 37.65 |
| Age Group | ||||||
| 18 to 30 years old | 26.2 | 25.20, 27.12 | 39.3 | 37.78, 40.91 | 27.5 | 26.57, 28.39 |
| 30 to 50 years old | 29.0 | 28.21, 29.84 | 41.5 | 40.41, 42.57 | 31.9 | 31.14, 32.65 |
| 50 to 65 years old | 34.5 | 33.48, 35.63 | 44.4 | 43.15, 45.62 | 37.5 | 36.58, 38.40 |
| >65 years old | 41.5 | 40.52, 42.58 | 49.3 | 48.23, 50.44 | 43.6 | 42.78, 44.45 |
| Educational Level | ||||||
| No Education | 46.9 | 44.63, 49.28 | 53.5 | 49.63, 57.40 | 48.5 | 46.50, 50.49 |
| Incomplete Primary Level | 39.5 | 38.44, 40.65 | 47.8 | 46.34, 49.23 | 41.8 | 40.84, 42.82 |
| Complete Primary Level | 34.6 | 33.19, 36.05 | 45.2 | 43.85, 46.65 | 37.8 | 36.59, 39-05 |
| Incomplete Secondary Level | 32.9 | 31.79, 34.01 | 44.3 | 42.96, 45.72 | 35.7 | 34.71, 33.66 |
| Complete Secondary Level | 29.8 | 28.90, 30.77 | 41.5 | 40.34, 42-76 | 32.6 | 31.75, 33.40 |
| Incomplete Higher Education | 27.4 | 25.89, 28.84 | 40.5 | 38.06, 42.87 | 29.1 | 27.70, 30.15 |
| Graduated | 26.6 | 25.42, 27.71 | 41.0 | 39.49, 42.61 | 28.7 | 27.64, 29.79 |
| Marital Status | ||||||
| Single | 28.2 | 27.40, 29.13 | 41.1 | 41.12, 43.79 | 30.2 | 29.36, 30.99 |
| Married / Stable Union | 31.6 | 30.92, 32.38 | 42.1 | 42.11, 43.87 | 34.6 | 33.96, 35.19 |
| Widower | 42.8 | 41.54, 44.15 | 48.8 | 48.76, 52.02 | 44.9 | 43.92, 46.06 |
| Separated / Divorced | 35.6 | 33.98, 37.13 | 44.1 | 44.06, 47.48 | 37.3 | 37.01, 39.69 |
| Working Situation - Worked at least 1 hour in the last week | ||||||
| No | 35.4 | 34.70, 36.17 | 47.2 | 46.30, 48.19 | 37.9 | 37.27, 38.63 |
| Yes | 28.1 | 27.49, 28.79 | 41.2 | 40.33, 42.11 | 31.1 | 30.50, 31.72 |
| Income Quartile | ||||||
| V (larger) | 27.1 | 25.96, 28.31 | 40.1 | 38.27, 42.07 | 29.2 | 28.10, 30.36 |
| IV | 30.3 | 29.12, 31.44 | 41.9 | 40.45, 43.40 | 32.7 | 31.73, 33.75 |
| III | 31.4 | 30.28, 32.51 | 44.1 | 42.82, 45.30 | 34.3 | 33.30, 35.27 |
| II | 34.4 | 33.37, 35.34 | 44.7 | 43.47, 46.01 | 36.9 | 36.04, 37.78 |
| I (smaller) | 34.1 | 33.02, 35.14 | 46.5 | 45.47, 47.55 | 37.2 | 36.29, 38.11 |
| Type of Housing | ||||||
| House | 31.6 | 30.74, 32.42 | 43.9 | 42.85, 44.91 | 34.3 | 33.54, 35.07 |
| “House with wall and roof neighbor on one side” | 31.9 | 31.04, 32.94 | 43.9 | 42.64, 45.26 | 34.8 | 33.94, 35.66 |
| “House with wall and roof neighbor on both sides” | 31.6 | 30.43, 32.72 | 44.2 | 42.62, 45.82 | 34.2 | 33.14, 35.18 |
| Apartment in a building with elevator | 27.8 | 25.34, 30.36 | 41.2 | 38.06, 44.37 | 29.9 | 27.58, 32.34 |
| Apartment in a building without elevator | 30.5 | 28.58, 32.51 | 43.5 | 41.48, 45.49 | 33.3 | 31.46, 35.21 |
| Tenement | 30.7 | 26.58, 34.77 | 40.9 | 36.53, 45.25 | 33.8 | 30.38, 37.27 |
| “Emergency housing” | 29.1 | 23.54, 34.61 | 41.9 | 36.95, 46.77 | 32.9 | 27.94, 37.90 |
| “Ranch or Cabin” | 30.9 | - | 49.5 | 38.02, 60.94 | 42.8 | 25.58, 57.03 |
| Precarious accommodation made with reused materials | 34.4 | 17.80, 51.01 | 64.9 | 63.96, 35.81 | 38.1 | 22.75, 53.49 |
| No information | 38. | 26.03, 50.54 | 45.7 | 38.53, 52.82 | 40.2 | 31.15, 49.21 |
| Health Rating | ||||||
| Very good | 17.6 | 16.52, 18.86 | 33.8 | 28.91, 38.69 | 18.8 | 17.55, 20.02 |
| Good | 27.5 | 26.88, 28.11 | 36.5 | 35.50, 37.48 | 28.8 | 28.30, 29.43 |
| Regular | 42.0 | 41.42, 42.60 | 46.2 | 45.45, 46.88 | 43.4 | 42.95, 43.89 |
| Poor | 52.2 | 50.96, 53.48 | 54.1 | 52.99, 55.30 | 53.0 | 52.09, 53.90 |
| Very poor | 59.6 | 57.88, 61.44 | 59.0 | 56.85, 61.22 | 59.4 | 58.07, 60.77 |
| No information | 30.1 | 18.10, 42.22 | 46.0 | / | 34.9 | 24.12, 45.82 |