Table 1 Description of the sample characteristics after data weighted from 2003/2004 to 2014 [percent, estimator (95 %.CI.)]

 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)

  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)

  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)

 Response (n) ^a

631

631

833

615

667

766

  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)

  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)

  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)

  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)

  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)

  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)

  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)

  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)