Table 2.
Changes § of medians (P25–P75) in time of sedentary behaviors (SB) from 2002 to 2010–2012 (hours per day).
| Variables | Total SB | Leisure Time SB | Occupational SB # | |||
|---|---|---|---|---|---|---|
| 2002 | 2010–2012 | 2002 | 2010–2012 | 2002 | 2010–2012 | |
| Total | 3.0 (2.0–5.0) | 3.0 (2.0–5.0) ** | 2.0 (1.5–3.0) | 2.0 (2.0–3.0) ** | 4.0 (2.0–6.0) | 4.0 (2.0–6.0) ** |
| Gender | ||||||
| Female | 2.0 (1.5–4.0) | 3.0 (2.0–5.0) ** | 2.0 (1.0–3.0) | 2.0 (2.0–3.0) ** | 5.0 (2.5–6.0) | 4.0 (2.0–6.0) ** |
| Male | 3.0 (2.0–6.0) | 3.0 (2.0–6.0) ** | 2.5 (1.5–3.5) | 2.5 (2.0–3.0) ** | 4.0 (2.0–6.0) | 3.0 (2.0–6.0) ** |
| Age group (year) | ||||||
| 18–29.9 | 3.5 (2.0–7.0) | 4.0 (2.5–6.5) ** | 3.0 (2.0–4.0) | 3.0 (2.0–4.0) ** | 4.0 (2.0–6.0) | 4.0 (2.0–6.0) ** |
| 30–39.9 | 3.0 (2.0–6.0) | 3.0 (2.0–6.0) ** | 2.0 (1.5–3.0) | 2.0 (2.0–3.0) ** | 4.0 (2.5–6.0) | 4.0 (2.0–6.0) ** |
| 40–49.9 | 3.0 (2.0–5.5) | 3.0 (2.0–5.0) ** | 2.0 (1.5–3.0) | 2.0 (2.0–3.0) ** | 4.0 (3.0–6.0) | 4.0 (2.0–6.0) ** |
| 50–59.9 | 2.0 (1.5–4.0) | 3.0 (2.0–4.0) ** | 2.0 (1.0–3.0) | 2.0 (2.0–3.0) ** | 4.0 (3.0–6.0) | 3.0 (2.0–6.0) ** |
| ≥60 | 2.0 (1.0–3.0) | 2.5 (2.0–4.0) ** | 2.0 (1.0–3.0) | 2.0 (2.0–4.0) ** | 4.6 (3.0–6.0) | 3.0 (1.0–5.0) ** |
| Region | ||||||
| Urban | 4.0 (2.5–7.5) | 4.0 (2.0–7.0) ** | 3.0 (2.0–4.0) | 3.0 (2.0–4.0) ** | 5.0 (2.0–6.0) | 4.0 (2.0–6.0) ** |
| Rural | 2.0 (1.0–4.0) | 3.0 (2.0–4.0) ** | 2.0 (1.0–3.0) | 2.0 (2.0–3.0) ** | 6.0 (4.0–8.0) | 5.0 (3.0–8.0) ** |
| Occupation | ||||||
| Employed | 7.5 (5.0–10.0) | 6.0 (4.0–9.0) ** | 3.0(2.0–4.0) | 2.0 (2.0–3.0) ** | 4.0 (2.0–6.0) | 4.0 (2.0–6.0) ** |
| Farmers | 2.0 (1.0–3.0) | 2.0 (2.0–3.0) ** | 2.0 (1.0–3.0) | 2.0 (2.0–3.0) ** | / | / |
| Unemployed | 2.5 (1.5–4.0) | 3.0 (2.0–4.0) ** | 2.5 (1.5–4.0) | 3.0 (2.0–4.0) ** | / | / |
| Marital Status | ||||||
| Yes | 2.9 (2.0–5.0) | 3.0 (2.0–5.0) ** | 2.0 (1.5–3.0) | 2.0 (2.0–3.0) ** | 4.0 (2.0–6.0) | 4.0 (2.0–6.0) ** |
| No | 3.0 (2.0–6.0) | 4.0 (2.0–6.0) ** | 2.5 (1.5–4.0) | 3.0 (2.0–4.0) ** | 4.0 (2.0–6.0) | 4.0 (2.0–6.0) ** |
| Educational Level | ||||||
| Illiterate and primary school graduate | 2.0 (1.0–3.0) | 2.0 (2.0–4.0) ** | 2.0 (1.0–2.5) | 2.0 (2.0–3.0) ** | 4.0 (1.5–6.0) | 2.0 (1.0–5.0) ** |
| Middle school graduate | 3.0 (2.0–4.5) | 3.0 (2.0–5.0) ** | 2.5 (2.0–3.0) | 2.3 (2.0–3.0) ** | 4.0 (2.0–6.0) | 3.0 (1.0–5.0) ** |
| High school graduate or higher | 6.0 (3.0–9.0) | 5.0 (3.0–8.0) ** | 3.0(2.0–4.0) | 3.0 (2.0–4.0) ** | 5.0 (3.0–6.0) | 5.0 (3.0–6.0) ** |
| Family economic level | ||||||
| Grade 1 | 2.0 (1.0–3.0) | 3.0 (2.0–4.0) ** | 2.0 (1.0–3.0) | 2.0 (2.0–3.0) ** | 4.0 (2.0–6.0) | 3.0 (1.0–5.0) ** |
| Grade 2 | 2.0 (1.0–3.0) | 3.0 (2.0–4.0) ** | 2.0 (1.0–3.0) | 2.0 (2.0–3.0) ** | 4.0 (2.0–6.0) | 3.0 (1.0–5.0) ** |
| Grade 3 | 2.0 (1.0–3.0) | 2.0 (1.5–3.0) ** | 2.0 (1.5–3.0) | 2.5 (2.0–3.0) ** | 4.0 (2.0–6.0) | 4.0 (2.0–6.0) ** |
| Grade 4 | 4.5 (2.5–8.0) | 4.0 (2.0–6.5) ** | 3.0 (2.0–4.0) | 3.0 (2.0–4.0) ** | 4.0 (2.0–6.0) | 4.0 (2.0–6.0) ** |
| Grade 5 | 5.5 (3.0–9.0) | 5.0 (3.0–8.0) ** | 3.0 (2.0–4.0) | 3.0 (2.0–4.0) ** | 5.0 (3.0–6.0) | 5.0 (3.0–7.0) ** |
§ gender and age standardized to the 2010 China census population; # Time of occupational SB was only calculated in employed participants, n2002 = 12,625, n2010–2012 = 31,914; ** p < 0.001, significance is based on non-parametric tests.