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Table 1 Demographic and clinical characteristics in the entire sample and by age groups

From: Identification of age differences in cancer-related symptoms in women undergoing chemotherapy for breast cancer in China

Characteristics

Entire sample

(n = 761)

Young-aged group

(n = 217)

Middle-aged group

(n = 397)

Elderly-aged group

(n = 147)

P value

Age (mean ± SD)

48.5 ± 11.8

34.3 ± 3.6

50.0 ± 5.6

65.5 ± 4.9

 

Marital status

    

 < 0.001

 Single

23 (3.0%)

22 (10.1%)

1 (0.3%)

0

 

 Married

692 (91.0%)

188 (86.8%)

375 (94.4%)

129 (87.8%)

 

 Divorced

26 (3.4%)

7 (3.1%)

15 (3.8%)

4 (2.7%)

 

 Widowed

20 (2.6%)

0

6 (1.5%)

14 (9.5%)

 

Number of children

    

 < 0.001

 No

45 (5.9%)

36 (16.6%)

7 (1.8%)

2 (1.4%)

 

 One child

392 (51.5%)

85 (39.2%)

245 (61.7%)

62 (42.2%)

 

 Two children

259 (34.1%)

81 (37.3%)

121 (30.5%)

57 (38.8%)

 

 Three or more children

65 (8.5%)

15 (6.9%)

24 (6.0%)

26 (17.6%)

 

Menstrual status

    

 < 0.001

 Premenopausal

343 (45.1%)

192 (88.5%)

150 (37.8%)

1 (0.7%)

 

 Menopausal

104 (13.6%)

8 (3.7%)

67 (16.9%)

29 (19.7%)

 

 Postmenopausal

314 (41.3%)

17 (7.8%)

180 (45.3%)

117 (79.6%)

 

Educational attainment

    

 < 0.001

 Primary school or below

147 (19.3%)

10 (4.6%)

84 (21.2%)

53 (36.1%)

 

 Secondary school

243 (31.9%)

60 (27.6%)

136 (34.2%)

47 (32.0%)

 

 High school

155 (20.4%)

36 (16.6%)

88 (22.2%)

31 (21.1%)

 

 University or above

216 (28.4%)

111 (51.2%)

89 (22.4%)

16 (10.8%)

 

Occupation

    

 < 0.001

 Employed

145 (19.1%)

76 (35.0%)

66 (16.6%)

3 (2.0%)

 

 Medical leave

151 (19.8%)

59 (27.2%)

85 (21.4%)

7 (4.8%)

 

 Unemployed

274 (36.0%)

80 (36.9%)

152 (38.3%)

42 (28.6%)

 

 Retired

191 (25.1%)

2 (0.9%)

94 (23.7%)

95 (64.6%)

 

Annual family income (¥)

    

 < 0.001

 < 60,000

455 (59.8%)

103 (47.5%)

243 (61.2%)

109 (74.1%)

 

 60,000–120,000

217 (28.5%)

80 (36.8%)

105 (26.5%)

32 (21.8%)

 

 > 120,000

89 (11.7%)

34 (15.7%)

49 (12.3%)

6 (4.1%)

 

Medical insurance

    

0.001

 Employed health insurance

285 (37.5%)

100 (46.1%)

139 (35.0%)

46 (31.3%)

 

 Urban health insurance

275 (36.1%)

69 (31.8%)

141 (35.5%)

65 (44.2%)

 

 Rural health insurance

160 (21.0%)

31 (14.3%)

96 (24.2%)

33 (22.5%)

 

 Without health insurance

41 (5.4%)

17 (7.8%)

21 (5.3%)

3 (2.0%)

 

Complication

    

0.766

 No

649 (85.3%)

180 (82.9%)

340 (85.6%)

129 (87.8%)

 

 Yes

112 (14.7%)

37 (17.1%)

57 (14.4%)

18 (12.2%)

 

Therapeutic regimen

    

0.009

 Chemotherapy + surgery

295 (38.8%)

74 (34.1%)

151 (38.0%)

70 (47.6%)

 

 Chemoradiotherapy + surgery

179 (23.5%)

45 (20.7%)

97 (24.4%)

37 (25.2%)

 

 Chemotherapy + surgery + endocrine therapy

198 (26.0%)

75 (34.6%)

97 (24.4%)

26 (17.7%)

 

 Chemotherapy + other

89 (11.7%)

23 (10.6%)

52 (13.2%)

14 (9.5%)

 

Chemotherapy cycles

    

 < 0.001

 First cycle

220 (28.9%)

50 (23.0%)

118 (29.7%)

52 (35.4%)

 

 Second cycle

84 (11.0%)

31 (14.3%)

43 (10.8%)

10 (6.8%)

 

 Third cycle

62 (8.2%)

34 (15.7%)

21 (5.3%)

7 (4.7%)

 

 Fourth cycle or above

395 (51.9%)

102 (47.0%)

215 (54.2%)

78 (53.1%)