Table 1 Main characteristics of all patients admitted to hospital by gender, 2003-2009

Age, year

 Mean (SD)

46.91 (21.16)

44.25 (19.23)

<0.01^*

 Median (range)

48 (0–142)

44 (0–104)

Age range, no. (%)

 0-

1664 (2.02)

1073 (1.44)

 1-

2446 (2.98)

1520 (2.03)

 5-

2753 (3.35)

1590 (2.13)

 15-

5614 (6.83)

6471 (8.66)

 25-

10082 (12.27)

14239 (19.06)

 35-

13832 (16.83)

13386 (17.92)

 45-

12995 (15.81)

12566 (16.82)

 55-

12774 (15.54)

11244 (15.05)

 65-

20015 (24.36)

12623 (16.90)

Duration of hospitalization, day

Mean (SD)

11.84 (16.33)

10.31 (11.84)

<0.01^*

 Median (Vmin-Vmax)

9.00 (1–961)

8.00 (1–488)

Medical expenses, yuan

 Percent %

57.63

42.37

 Mean (SD)

8806.31 (20539.23)

7122.56 (14998.65)

<0.01^*

Surgical therapies (%)

37.16

43.96

<0.01^†

Self-paid (%)

42.40

47.05

<0.01^†

Occupation status, no. (%)

<0.01^†

 Government employee

30452 (37.06)

21653 (28.98)

 Private employee

13173 (16.03)

14382 (19.25)

 Self-employed

3121 (3.80)

1381 (1.85)

 Unemployed

28566 (34.76)

33113 (44.32)

 Children

6863 (8.35)

4183 (5.60)