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Table 2 Demographic comparison between sample population and city population of five Chinese cities (Unit 10,000 persons)

From: The effect of temperature on physical activity: an aggregated timeseries analysis of smartphone users in five major Chinese cities

City

Sample

Population (2018)

p-value

Category

Sample size (%)

±SD

Category

N (%)

Beijing

Total

1108.9 (100.0)

167.3

Total

2154.2 (100.0)

 

Gender

     

Male

555.2 (50.1)

81.7

Male

1095.6 (50.9)

0.879

Female

553.7 (49.9)

85.7

Female

1058.6 (49.1)

 

Age

  

Total 15+

1927.6

 

18-64

1095.2 (98.8)

163.4

15-64

1686.2 (87.5)

< 0.001*

65+

13.7 (1.2)

4.0

65+

241.4 (12.5)

 

Shanghai

Total

963.5 (100.0)

137.3

Total

1462.4 (100.0)^

 

Gender

     

Male

462.5 (48.0)

63.9

Male

724.1 (49.5)

0.761

Female

501.0 (52.0)

73.4

Female

738.2 (50.5)

 

Age

  

Total 18+

1285.9

 

18-64

947.2 (98.3)

132.3

18-59

783.9 (61.0)

< 0.001*

65+

16.3 (1.7)

5.1

60+

502.0 (39.0)

 

Chongqing

Total

286.0 (100.0)

46.1

Total

3101.8 (100.0)

 

Gender

     

Male

131.4 (45.9)

21.1

Male

1563.4 (50.4)

0.368

Female

154.6 (54.1)

25.1

Female

1538.4 (49.6)

 

Age

  

Total 15+

2572.3

 

18-64

282.3 (98.7)

44.9

15-64

2135.0 (83.0)

< 0.001*

65+

3.6 (1.3)

1.2

65+

437.4 (17.0)

 

Shenzhen

Total

489.8 (100.0)

66.6

Total

1302.7 (100.0)

 

Gender

     

Male

269.3 (55.0)

37.8

Male

707.8 (54.3)

0.893

Female

220.5 (45.0)

28.9

Female

594.9 (45.7)

 

Age

  

Total 18+

\

 

18-64

487.4 (99.5)

66.2

18-64

\

NA

65+

2.4 (0.5)

0.5

65+

\

 

Hong Kong

Total

42.8 (100.0)

6.7

Total

748.77 (100.0)

 

Gender

     

Male

18.6 (43.5)

2.9

Male

342.23 (45.7)

0.659

Female

24.2 (56.5)

3.8

Female

406.54 (54.3)

 

Age

  

Total 15+

663.89

 

18-64

42.5 (99.3)

6.6

15 – 64

533.36 (80.3)

< 0.001*

65+

0.3 (0.7)

0.1

65+

130.53 (19.7)

 
  1. Chi-square test was used to measure the overall difference in proportion between the sample and 2018 population data. Population age group categories were based on the available census data per city; no age group data was found for Shenzhen. ^Age and sex breakdown were only available for the registered population in Shanghai. Census data sources: [42,43,44, 46, 62]
  2. \ indicates the absence of data
  3. * p ≤ 0.05 indicates significant difference