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Table 1 Characteristics of study participants in 2004, followed by 2006, 2009 and 2011

From: Dietary pattern transitions, and the associations with BMI, waist circumference, weight and hypertension in a 7-year follow-up among the older Chinese population: a longitudinal study

Factors

2004

2006

2009

2011

P value*

N

2197

1765

1304

1086

 

Physical activity (MET)

 Median (IQR)

79.9 (63.9; 109.0)

78.9 (63.5; 102.1)

89.9 (68.4; 119.1)

91.1 (68.5; 119.9)

<0.001

Gender

 Men

1030 (46.9 %)

837 (47.7 %)

620 (47.5 %)

518 (47.7 %)

0.97

 Women

1167 (53.1 %)

928 (52.6 %)

684 (52.5 %)

568 (52.3 %)

 

Work Status

 Yes

521 (23.8 %)

396 (22.4 %)

267 (20.5 %)

218 (20.1 %)

0.04

 No

1668 (76.2 %)

1369 (77.6 %)

1037 (79.5 %)

868 (79.9 %)

 

Marital status

 Married

1553 (71.2 %)

1272 (72.3 %)

896 (68.8 %)

708 (65.3 %)

<0.001

 Others marital statusa

627 (28.8 %)

487 (27.7 %)

406 (31.2 %)

376 (34.7 %)

 

Education levels

 Illiteracy

759 (34.7 %)

699 (39.9 %)

499 (38.4 %)

407 (37.7 %)

0.006

 Low

859 (39.3 %)

602 (34.3 %)

502 (38.7 %)

411 (38.0 %)

 

 Medium

285 (13.0 %)

215 (12.3 %)

153 (11.8 %)

146 (13.5 %)

 

 High

285 (13.0 %)

238 (13.6 %)

144 (11.1 %)

117 (10.8 %)

 

Smoking status

 Yes

538 (24.5 %)

392 (22.2 %)

320 (24.5 %)

266 (24.5 %)

0.30

 No

1659 (75.5 %)

1373 (77.8 %)

984 (75.5 %)

820 (75.5 %)

 

Urbanization levels

 Low

793 (36.1 %)

624 (35.4 %)

406 (31.1 %)

297 (27.4 %)

<0.001

 Medium

701 (31.9 %)

516 (29.2 %)

466 (35.7 %)

431 (39.8 %)

 

 High

703 (32.0 %)

625 (35.4 %)

432 (33.1 %)

354 (32.7 %)

 
  1. *ANOVA tests were used to examine the association between survey years and gender, work status, marital status, education levels, smoking status, and urbanization levels. Linear regression was used to access the association between physical activity levels and survey years
  2. aOther marital status includes divorced; widowed; separated and never married