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. Author manuscript; available in PMC: 2015 Jul 30.
Published in final edited form as: Soc Sci Med. 2015 Feb 16;130:181–189. doi: 10.1016/j.socscimed.2015.02.020

Table 2.

Variables used in the analysis: base line values in 2002

Whole sample Urban Areas Rural Areas
Predictor Variables n = 13,935 n = 6,012 n = 7,923
Demographic and socio-economic
Age In years: 62~120, mean = 86 In years: 62~120, mean = 86.5 In years: 62~120, mean = 86.4
Gender Male (42.6%), Female (57.4%) Male (42.8%), Female (57.2%) Male (42.5%), Female (57.5%)
Residence Urban (43.3%), Rural (56.7%)
Education No Schooling (62.4%), Schooling (37.6%) No Schooling (54.3%), Schooling (45.7%) No Schooling (68.4%), Schooling (31.6%)
Income (family per capita income) 0~50,000 (unit: Yuan); Quartiles: 1000, 2000 and 4000 0~50,000 (unit: Yuan); Quartiles: 1000, 2000 and 4000 0~50,000 (unit: Yuan); Quartiles: 1000, 2000 and 4000
Activities of Social Support
Living arrangements Live with spouse (29%), Live with family member(s) (53.6%), Alone (13.2%), In a nursing house (4.2%) Live with spouse (30.4%), Live with family member(s) (51.2%), Alone (11.9%), In a nursing house (6.6%) Live with spouse (28.1%), Live with family member(s) (55.2%), Alone (14.2%), In a nursing house (2.4%)
Received financial support Local government (5.6%), Pension (17.6%), Family (68.8%), Work (8%) Local government (6.6%), Pension (33.4%), Family (55.7%), Work (4.4%) Local government (4.9%), Pension (5.6%), Family (78.8%), Work (10.7%)
Received medical expense Family (74.9%), Public medical care (12.3%), Self (12.8%) Family (62.9%), Public medical care (23.4%), Self (13.7%) Family (84%), Public medical care (3.8%), Self (12.2%)
Perceived care support when sick Family (92.1%), Social service (4%), Live-in care giver (1.9%), Nobody (2%) Family (88.8%), Social service (5.9%), Live-in care giver (3.6%), Nobody (1.7%) Family (94.7%), Social service (2.5%), Live-in care giver (0.6%), Nobody (2.2%)
Health status
Self-rated health Very Good (9.6%), Good (34.6%), Fair (32.1%), Poor (14.1%), Very Poor (1.3%), No answer (8.3%) Very Good (11.2%), Good (35.1%), Fair (31.7%), Poor (13%), Very Poor (1.3%), No answer (7.6%) Very Good (8.4%), Good (34.4%), Fair (32.4%), Poor (14.9%), Very Poor (1.2%), No answer (8.6%)
Province-level (n=22) variables at baseline in 2002
Mean household income 0.31~1.10 (Unit: 10k Yuan) 0.60~1.32 (Unit: 10k Yuan) 0.15~0.62 (Unit: 10k Yuan)

Family includes spouse, children and other relative.