Skip to main content

Table 4 Z-Tests to Determine if Regression Coefficients are Significantly Different for Urban and Rural Subgroups: R Aged 65 and Over, China

From: Falls and risk factors of falls for urban and rural community-dwelling older adults in China

Variables

Z Value

b1 = b2 (Coefs are the same)

1) Personal Characteristics

 Sex (ref. = female)

−1.34

Yes

 Age

1.41

Yes

 If illiterate (ref. = no)

−0.70

Yes

 Natural log of household income per capita

−2.00

No

 Living alone (ref. = no)

−0.55

Yes

2) Health Status

 Vision

2.50

No

 Hypertension(ref. = no)

0.38

Yes

 Heart Disease(ref. = no)

0.08

Yes

 Arthritis(ref. = no)

1.33

Yes

 Cervical and lumbar spondylosis(ref. = no)

0.39

Yes

 Cerebrovascular disease(ref. = no)

−0.70

Yes

 Self-rated health

0.71

Yes

 Cognitive function damage

0.71

Yes

 ADL disability

−1.77

Yes

 Depression(ref. = no)

0.33

Yes

3) Environmental Factors

 Whether tap water is available(ref. = no)

−0.26

Yes

 Apartment type (ref. = one-story)

  

 High rise building with elevator or on 1st floor

0.88

Yes

 High rise building without elevator

−1.27

Yes

 If satisfied with living condition (ref. = no)

−0.52

Yes

4) Physical Exercise

 Taichi (ref. = no)

0.33

Yes

 Muscle-toning exercises

0.37

Yes

 Taking a walk

−2.83

No

5) Life Styles

 Whether smoked (ref. = no)

0.42

Yes

 Whether drank (ref. = no)

1.10

Yes

  1. Note: H0: b1 for urban subgroup = b2 for rural subgroup; yes = coefficients are the same