Table 2 Mixed effects estimates on work and domestic PA levels (MET-hrs/wk) among Chinese adult men, coefficient (95Â % CI)
From: Age, period and cohort effects on adult physical activity levels from 1991 to 2011 in China
Men | Model 1 | Model 2 | Model 3 | Model 4 |
|---|---|---|---|---|
Age | 7.99 (6.65,9.33) | 8.66 (7.43,9.9) | 7.67 (6.39,8.95) | 8.32 (7.02,9.61) |
Age- squared | −0.10 (−0.12,-0.09) | −0.11 (−0.12,-0.09) | −0.09 (−0.11,-0.08) | −0.10 (−0.11,-0.08) |
Survey year (ref: 1991) | Â | Â | Â | Â |
 1993 | −137.22 (−160.59,−113.86) | −110.57 (−135.29,−85.85) | −97.37 (−122.23,−72.50) | −84.94 (−110.60,−59.28) |
 1997 | −163.83 (−190.22,−137.43) | −128.64 (−156.41,−100.86) | −83.24 (−111.03,−55.44) | −92.15 (−121.13,−63.17) |
 2000 | −208.57 (−235.59,−181.56) | −147.80 (−176.52,−119.09) | −94.38 (−122.67,−66.09) | −91.75 (−121.94,−61.56) |
 2004 | −179.27 (−211.60,−146.94) | −96.50 (−129.25,−63.75) | −47.66 (−81.60,−13.73) | −28.36 (−63.38,6.67) |
 2006 | −164.98 (−201.06,−128.91) | −76.11 (−111.48,−40.74) | −14.30 (−52.31,23.70) | −6.40 (−44.14,31.35) |
 2009 | −226.34 (−261.10,−191.59) | −157.02 (−189.40,−124.65) | −73.00 (−108.66,−37.33) | −98.68 (−133.43,−63.93) |
 2011 | −213.19 (−251.38,−175.00) | −113.61 (−148.50,−78.73) | −28.35 (−67.44,10.74) | −41.33 (−78.83,−3.83) |
1993*Age | 0.1 0 (−0.42,0.62) | 0.01 (−0.53,0.55) | −0.09 (−0.65,0.47) | −0.27 (−0.84,0.30) |
1997*Age | 1.06 (0.46,1.66) | 0.75 (0.13,1.37) | 0.55 (−0.08,1.18) | 0.36 (−0.30,1.01) |
2000*Age | 0.86 (0.26,1.47) | 0.18 (−0.45,0.81) | 0.40 (−0.23,1.03) | −0.35 (−1.02,0.31) |
2004*Age | −0.43 (−1.12,0.26) | −0.74 (−1.44,−0.03) | −0.77 (−1.49,−0.06) | −1.39 (−2.14,−0.64) |
2006*Age | −0.65 (−1.40,0.10) | −1.20 (−1.94,−0.46) | −1.00 (−1.78,−0.22) | −1.74 (−2.53,−0.95) |
2009*Age | 0.29 (−0.43,1.02) | 0.14 (−0.55,0.82) | 0.11 (−0.62,0.84) | −0.29 (−1.01,0.43) |
2011*Age | 0.01 (−0.76,0.78) | −0.59 (−1.30,0.13) | −0.50 (−1.28,0.27) | −1.25 (−2.00,−0.49) |
Inverse Mill’s Ratio | −6.3 (−6.95,−5.66) | −4.44 (−5.06,−3.82) | −4.56 (−5.21,−3.90) | −3.62 (−4.25,−3.00) |
Household income | Â | Â | 0.00 (0.00,0.00) | 0.00 (0.00,0.00) |
Bicycle ownership | Â | Â | 6.14 (0.23,12.04) | 10.29 (4.56,16.03) |
Vehicle ownership |  |  | −13.06 (−19.00,−7.11) | −6.53 (−12.43,−0.64) |
TV and computer ownership |  |  | −39.67 (−48.30,−31.04) | −14.43 (−23.12,−5.74) |
Household size |  |  | 3.23 (1.44,5.02) | −1.85 (−3.60,−0.11) |
Community Urbanicity |  |  | −5.01 (−5.19,−4.83) | −1.80 (−1.99,−1.60) |
Overweight/Obese |  | −11.61 (−17.95,−5.27) |  | −10.08 (−16.6,−3.56) |
Occupation (ref: professional job) | Â | Â | Â | Â |
 Farmer |  | 322.89 (314.63,331.15) |  | 305.44 (296.18,314.70) |
 officer/soldier/athlete |  | 54.74 (27.66,81.83) |  | 64.05 (35.92,92.19) |
 Unskilled worker |  | 188.91 (179.61,198.21) |  | 185.47 (175.93,195.00) |
 Skilled worker |  | 84.52 (75.66,93.38) |  | 85.98 (76.99,94.97) |
 Other occupation |  | 49.06 (36.36,61.77) |  | 48.01 (34.47,61.55) |
Married | Â | 7.40 (2.53,12.28) | Â | 5.69 (0.61,10.76) |
Education (ref: < primary school) | Â | Â | Â | Â |
 Middle and high school |  | −7.25 (−13.72,−0.78) |  | −2.35 (−8.97,4.28) |
 College and above |  | −27.82 (−41.23,−14.41) |  | −8.94 (−22.78,4.9) |
Number of observations | 28002 | 21675 | 25262 | 20039 |
Number of individuals | 7042 | 6601 | 6923 | 6456 |