Table 1.
Description of the sample characteristics after data weighted from 2003/2004 to 2014 [percent, estimator (95 %.CI.)]
| Variable | 2003/2004 | 2006 | 2008 | 2010 | 2012 | 2014 |
|---|---|---|---|---|---|---|
| Overall sample | ||||||
| Total responses (n) a | 7792 | 8080 | 9586 | 7506 | 7857 | 7810 |
| Total responses (n) | 850519 | 1049234 | 1110086 | 1127340 | 1126276 | 1464991 |
| Household (n) a | 1838 | 1924 | 1879 | 1888 | 1890 | 1896 |
| Household (n) | 166452 | 219186 | 202718 | 253229 | 239076 | 307098 |
| Per-capita financial level for NCMS a c | 43 | 66 | 123 | 173 | 306 | 370 |
| Per-capita hospitalization cost c | 3931.15 (1755.74, 6106.57) | 4368.88 (2411.44, 6326.27) | 5182.37 (3601.72, 6763.03) | 4256.32 (3201.31, 5311.32) | 6072.76 (5243.59, 6901.92) | 7245.03 (6580.56, 7909.52) |
| Sex | ||||||
| Male | 52.17 (49.51, 54.82) | 52.39 (49.92, 54.85) | 51.88 (50.99, 52.77) | 51.83 (50.91, 52.75) | 51.74 (50.85, 52.63) | 51.78 (50.79, 52.78) |
| Female | 47.83 (45.18, 50.49) | 47.61 (45.15, 50.08) | 48.12 (47.23, 49.01) | 48.17 (47.25, 49.09) | 48.26 (47.37, 49.15) | 48.22 (47.22, 49.21) |
| Age | ||||||
| 0 ~ 64 | 93.38 (90.62, 95.37) | 93.44 (90.94, 95.29) | 92.80 (89.94, 94.89) | 92.80 (90.56, 94.55) | 92.75 (91.99, 93.45) | 91.54 (89.85, 92.97) |
| 65~ | 6.62 (4.63, 9.38) | 6.56 (4.71, 9.06) | 7.20 (5.11, 10.05) | 7.20 (5.45, 9.44) | 7.25 (6.55, 8.01) | 8.46 (7.03,10.15) |
| Sample of elderly b | ||||||
| Response (n) a | 631 | 631 | 833 | 615 | 667 | 766 |
| Sex | ||||||
| Male | 50.48 (47.50, 53.46) | 50.48 (48.28, 52.67) | 50.36 (46.28, 54.44) | 50.05 (45.28, 54.81) | 49.74 (45.95, 53.52) | 51.30 (46.17, 56.41) |
| Female | 49.52 (46.54, 52.50) | 49.52 (47.33, 51.72) | 49.64 (45.56, 53.72) | 49.95 (45.19, 54.72) | 50.26 (46.48, 54.05) | 48.70 (43.59, 53.83) |
| Age | ||||||
| 65~ | 60.60 (57.17, 63.93) | 62.72 (56.88, 68.20) | 65.97 (59.09, 72.24) | 67.24 (59.52, 74.12) | 68.03 (55.38, 78.48) | 63.10 (55.05, 70.49) |
| 75~ | 34.77 (28.53, 41.57) | 33.35 (28.16, 38.98) | 29.30 (23.85, 35.41) | 27.90 (21.00, 36.03) | 27.13 (17.68, 39.22) | 29.68 (23.48, 36.74) |
| 85~ | 4.63 (1.85, 11.15) | 3.93 (2.87, 5.37) | 4.73 (2.81, 7.85) | 4.86 (3.17, 7.39) | 4.85 (3.21, 7.26) | 7.21 (4.96, 10.38) |
| Occupation | ||||||
| Farmer | 97.30 (93.95, 98.82) | 96.57 (94.13, 98.02) | 95.53 (92.81, 97.25) | 92.65 (81.16, 94.89) | 91.25 (84.51, 95.23) | 90.09 (87.26, 92.34) |
| No-farmer | 2.70 (1.18, 6.05) | 3.43 (1.98, 5.87) | 4.47 (2.75, 7.19) | 7.35 (3.11, 16.84) | 8.75 (4.77, 15.49) | 9.91 (7.66, 12.74) |
| Educational level | ||||||
| Illiterate | 49.80 (43.80, 55.80) | 36.78 (30.15, 43.95) | 31.03 (23.15, 40.18) | 27.23 (20.29, 35.49) | 16.43 (11.81, 22.40) | 28.74 (24.46, 33.44) |
| Elementary school | 42.82 (36.97, 48.87) | 54.20 (46.14, 62.06) | 56.17 (46.64, 65.27) | 54.87 (44.49, 64.84) | 67.91 (58.81, 75.82) | 54.00 (37.70, 69.49) |
| Middle school and above | 7.39 (3.68, 14.29) | 9.02 (3.99, 19.12) | 12.80 (6.41, 23.93) | 17.90 (12.30, 25.31) | 15.67 (9.08, 25.69) | 17.25 (7.67, 34.34) |
| Marital status | ||||||
| Married | 64.16 (54.25, 72.99) | 54.49 (50.50, 58.42) | 62.93 (51.03, 73.44) | 59.61 (52.70, 66.15) | 62.21 (58.77, 65.54) | 64.16 (57.08, 70.68) |
| Unmarried/divorced/widowed | 35.84 (27.01, 45.74) | 45.51 (41.58, 49.50) | 37.07 (26.56, 48.97) | 40.39 (33.85, 47.30) | 37.79 (34.46, 41.23) | 35.84 (29.32, 42.92) |
| Labor force | ||||||
| Yes | 11.08 (8.27, 14.69) | 31.46 (27.23, 36.03) | 14.89 (12.03, 18.28) | 33.21 (27.59, 39.35) | 40.19 (35.34, 45.24) | 44.92 (38.38, 51.65) |
| No | 88.92 (85.31, 91.73) | 68.54 (63.97, 72.77) | 85.11 (81.72, 87.97) | 66.79 (60.65, 72.41) | 59.81 (54.76, 64.66) | 55.08 (48.35, 61.62) |
| Chronic disease | ||||||
| Yes | 25.87 (21.43, 30.87) | 23.10 (15.37, 33.20) | 25.69 (17.22, 36.50) | 31.43 (27.68, 35.45) | 22.70 (19.62, 26.11) | 29.62 (24.53, 35.27) |
| No | 74.13 (69.13, 78.57) | 76.90 (66.80, 84.63) | 74.31 (63.50, 82.78) | 64.55 (59.25, 72.32) | 77.30 (73.89, 80.38) | 70.38 (64.73, 75.47) |
| NCMS | ||||||
| Yes | 0.00 (0.00, 0.00) | 96.66 (89.85, 98.96) | 99.29 (97.91, 99.76) | 99.63 (97.13, 100.00) | 100.00 (100.00, 100.00) | 100.00 (100.00, 100.00) |
| No | 100.00 (100.00,100.00) | 3.34 (1.04, 10.15) | 0.71 (0.24, 2.09) | 0.36 (0.05, 2.87) | 0.00 (0.00, 0.00) | 0.00 (0.00, 0.00) |
| Per-capita income per year [mean, estimator (95 %.CI.)]c | 3882.56 (3031.80, 4733.33) | 8589.0 (7055.90 10122.21) | 6339.38 (4278.85, 8399.91) | 8443.24 (7860.20, 9026.29) | 8375.49 (7070.40, 9680.57) | 15653.19 (6814.34, 24492.04) |
a Without weighted the data
b Elderly: aged 65 and above
c Per-capita financial level, Per-capita hospitalization cost and Annual per capita household income were inflated to the year of 2014 using rural consumer price index; their units are RMB (Yuan)