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Table 2 Demographic and socioeconomic characteristics of study population by the mKMI score

From: Severity and factors of menopausal symptoms in middle-aged women in Gansu Province of China: a cross-sectional study

 

The mKMI score

None (0–6)

Mild (7–14)

Moderate (15–30)

Severe (> 30)

Statistics

P value

Age, mean ± SD, years

45.32 ± 4.02

46.31 ± 4.24

47.77 ± 4.34

49.77 ± 4.14

219.37

 < 0.0001

 < 45

731 (47.16)

798 (36.89)

748 (24.81)

76 (12.86)

531.127

 < 0.0001

45–50

544 (35.10)

834 (38.56)

1112 (36.88)

168 (28.43)

  

≥ 50

275 (17.74)

531 (24.55)

1155 (38.31)

347 (58.71)

  

BMI, mean ± SD, kg/m2

22.72 ± 2.53

22.85 ± 2.55

23.24 ± 2.90

23.54 ± 3.04

22.25

 < 0.0001

 < 18.5

58 (3.74)

82 (3.79)

112 (3.71)

27 (4.57)

61.9232

 < 0.0001

18.5–23.9

1055 (68.06)

1412 (65.28)

1794 (59.50)

310 (52.45)

  

24–27.9

384 (24.77)

611 (28.25)

916 (30.38)

209 (35.36)

  

 ≥ 28

53 (3.42)

58 (2.68)

193 (6.40)

45 (7.61)

  

Ethnic, n(%)

    

49.0415

 < 0.0001

Han

1420 (91.61)

1993 (92.14)

2685 (89.05)

474 (80.20)

  

Others

130 (8.39)

170 (7.86)

330 (10.95)

117 (19.80)

  

Marital status, n(%)

    

7.3482

0.0067

Married

1500 (96.77)

2105 (97.32)

2875 (95.36)

567 (95.94)

  

Others

50 (3.23)

58 (2.68)

140 (4.64)

24 (4.06)

  

Occupation, n(%)

    

161.747

 < 0.0001

Clerical or professional

615 (39.68)

675 (31.21)

794 (26.33)

108 (18.27)

  

Farmer or manual

522 (33.68)

922 (42.63)

1431 (47.46)

346 (58.54)

  

Others

413 (26.65)

566 (26.17)

790 (26.20)

137 (23.18)

  

Family income, n(%)

    

31.5785

 < 0.0001

 < 1800 $

431 (27.81)

622 (28.76)

979 (32.47)

237 (40.10)

  

1800–3600 $

541 (34.90)

780 (36.06)

1069 (35.46)

173 (29.27)

  

 > 3600 $

578 (37.29)

761 (35.18)

967 (32.07)

181 (30.63)

  

Education, n(%)

    

266.911

 < 0.0001

Illiterate or elementary school

519 (33.48)

896 (41.42)

1550 (51.41)

375 (63.45)

  

Middle school

334 (21.55)

501 (23.16)

627 (20.80)

105 (17.77)

  

High school

271 (17.48)

330 (15.26)

403 (13.37)

60 (10.15)

  

College and above

426 (27.48)

436 (20.16)

435 (14.43)

51 (8.63)

  

Physical activity, n(%)

    

11.4011

0.0007

Never

1022 (65.94)

1450 (67.04)

2058 (68.26)

441 (74.62)

  

1–3 times/week

127 (8.19)

187 (8.65)

247 (8.19)

31 (5.25)

  

4–6 times/week

134 (8.65)

181 (8.37)

284 (9.42)

41 (6.94)

  

 ≥ 7 times/week

267 (17.23)

345 (15.95)

426 (14.13)

78 (13.20)

  
  1. The mKMI, the Modified Kupperman Menopausal Index
  2. SD, standard deviation; BMI, body mass index