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Table 1 Characteristics of the included studies

From: Treatment modalities for granulomatous mastitis, seeking the most appropriate treatment with the least recurrence rate: a systematic review and meta-analysis

ID

Author

Year

Country

Sample size

Sampling

Age(years)

Treatments (Recurrence)

Follow_up

Type

Risk of bias

References

1

Akbulut S

2011

Turkey

4

Non-Randomized

30–42

Oral steroid + MTX (0/4)

2–9 months

IGM

8

[21]

2

Akcan A

2014

Turkey

74

Non-Randomized

36.6

Excision (4/51), Steroid + surgery (0/21)

3–170 months

IGM

3

[22]

3

Al-Jarrah A

2013

Oman

20

Non-Randomized

37.5

Antibiotic (0/19), Excision (0/1)

11–33 months

IGM

5

[23]

4

Alrayes A

2019

Bahrain

18

Non-Randomized

39

Excision (0/18)

12‐24 months

IGM

6

[1]

5

Altintoprak F

2015

Turkey

28

Non-Randomized

35.7

Topical steroid (3/28)

12–72 months

IGM

5

[24]

6

Aslan H

2018

Turkey

39

Non-Randomized

Conservative:38.44 ± 9.6 surgery:36.05 ± 7.44

Antibiotic (4/18), Mastectomy (1/21)

conservative: 9.05 ± 14.5 months surgery:10.28 ± 10.08 months

IGM

3

[3]

7

Asoglu O

2005

Turkey

18

Non-Randomized

41.5 (16–80)

Antibiotic + surgery (1/18)

36 (6–60 months)

IGM

6

[25]

8

Atalay C

2011

Turkey

51

Non-Randomized

33 (22–57)

Excision (3/50), Mastectomy (0/1)

38 (12–58 months)

IGM

3

[26]

9

Azlina, A. F

2003

Malaysia

12

Non-Randomized

36.5

Oral steroid (6/12)

2–6 months

CGM

8

[27]

10

Baslaim M. M

2007

Saudi Arabia

17

Non-Randomized

34 (21–45 years)

Antibiotic + surgery (0/17)

24 (15–42 months)

IGM

6

[28]

11

Bouton M. E

2015

USA

27

Non-Randomized

33

Observation (3/27), Excision (1/9)

7.4 (6–24 months)

IGM

6

[29]

12

Calis H

2014

Turkey

13

Non-Randomized

44 (25–77)

Oral steroid (2/12), Mastectomy (0/1)

24 months

IGM

6

[17]

13

Cetinkaya G

2021

Turkey

118

Non-Randomized

35 (21–65)

Oral steroid (8/36), Antibiotic (4/21), Observation (1/50), Imuran (0/2)

70 (16–124 months)

IGM

4

[30]

14

Chirappapha P

2018

Thailand

36

Non-Randomized

38 (21–81)

Oral steroid (1/6), Drainag (3/7), Excision (8/23)

20.73 (1.26–118.8 months)

IGM

3

[31]

15

Co M

2018

China

88

Non-Randomized

33 (20–54)

Oral steroid (9/62), Antibiotic (4/22), Excision (1/4)

14 (4–51 months)

IGM

6

[32]

16

Cornejo-Juarez, P

2014

Mexico

58

Non-Randomized

38 ± 12

Oral steroid (2/8), Antibiotic (6/20), Antibiotic + steroid (3/20), Observation (3/7), Excision (1/3)

16.7 ± 13.8 months

IGM

3

[33]

17

Dag A

2021

Turkey

18

Non-Randomized

34.2(25–42)

Excision + oncoplastic breast surgery (2/18)

20 (6–44 months)

IGM

6

[34]

18

Elzahaby I. A

2016

Egypt

30

Non-Randomized

33(23–43)

Excision (0/30)

19 (8–44 months)

IGM

7

[35]

19

Erozgen F

2010

Turkey

27

Non-Randomized

35.3 (22–52)

Oral steroid (0/4), Drainage + steroid (1/14), Excision + steroid (0/9)

7 (1–48 months)

IGM

6

[36]

20

Erturk T. F

2021

Turkey

86

Non-Randomized

Conservative:37.2 (23–63)

surgery:36.8 (24–65)

Intralesional injection of steroid + topical steroid (0/38), Excision (15/48)

12-month

IGM

4

[37]

21

Gopalakrishnan Nair C

2014

India

22

Randomized

32.85

Oral steroid (1/22)

24 months

IGM

5

[38]

22

Govindasamy A

2016

India

26

Non-Randomized

20–53

Excision (0/26)

12–84 months

GM

6

[39]

23

Hur S. M

2013

Korea

50

Non-Randomized

37.1 ± 7.9

Oral steroid (9/13), Antibiotic (2/3), Observation (1/8), Drainage (10/14), Excision (1/12)

32.0 ± 18.1 months

GLM

4

[40]

24

Kafadar M. T

2021

Turkey

17

Non-Randomized

40.4 ± 5.3

Oral steroid + MTX (4/17)

2–3 months of treatment

IGM

8

[41]

25

Karanlik H

2014

Turkey

60

Randomized

35 (18–58)

Oral steroid (7/23), Steroid + surgical (0/37)

conservative:12 (2–18) months surgery + conservative:38 (22–78 months)

IGM

2

[42]

26

Kaviani A

2018

Iran

374

Non-Randomized

34.06 ± 6.7

Oral steroid (39/142), antibiotic (22/154), MTX (1/13), NSAID (26/140), Observation (10/66), Surgical procedures (89/158)

IGM

6

[43]

27

Kayahan M

2012

Turkey

31

Non-Randomized

35 (27–62)

Oral steroid (1/12), Antituberculosis (0/1), Drainage (3/6), Excision (1/12)

27.8 (9–124 months)

GM

5

[44]

28

Kehribar D. Y

2020

Turkey

33

Non-Randomized

38.64 ± 6.9

Oral steroid + MTX (0/33)

24 months

IGM

6

[45]

29

Koksal H

2021

Turkey

108

Non-Randomized

35.5 (21–68)

Oral steroid (2/18), Wait-and-watch or only antibiotic (3/42), Surgical procedures (5/48)

Up to 20 months

IGM

4

[46]

30

Liao H

2020

China

28

Non-Randomized

32 (26–43)

Surgical procedures (1/24)

20 (11–40 months)

GLM

6

[47]

31

Mizrakli T

2014

Turkey

49

Non-Randomized

34.3 ± 4.37

Antibiotic (0/1), Oral steroid + MTX (0/40), Antituberculosis (0/5), NSAID (0/2), Excision (0/1)

At least 6 months

GM

6

[48]

32

Nair C. G

2015

India

23

Non-Randomized

33.42

Antibiotic + steroid (1/23)

24 months

IGM

5

[49]

33

Ocal K

2010

Turkey

16

Non-Randomized

34 (24–51)

Excision (3/16)

24 (6–36 months)

GM

5

[50]

34

Ozel L

2012

Turkey

8

Non-Randomized

37( 27–48)

Antibiotic + surgery (2/8)

12 months

GM

8

[51]

35

Papila Kundaktepe B

2021

Turkey

60

Non-Randomized

32.77 ± 6.03 (23–49)

MTX (8/60)

831 ± 547 days

IGM

5

[51]

36

Ringsted S

2021

Oregon

20

Non-Randomized

32(16–42)

Oral steroid (5/12), MTX (0/5), Steroid + surgery (0/3)

27 (5–63 months)

IGM

6

[52]

37

Salehi M

2014

Iran

59

Non-Randomized

conservative:30.3 ± 6.38 surgery:36.74 ± 13.51

Antibiotic + steroid (1/20), Partial mastectomy (32/39)

12 months

IGM

6

[53]

38

Sen Oran E

2013

Turkey

46

Non-Randomized

33 (28–55)

Oral steroid (5/25), Excision (3/18), Steroid + surgery (0/3)

35.4 (3–135 months)

IGM

3

[54]

39

Shin Y. D

2017

South Korea

34

Non-Randomized

37(24—57)

Excision (5/20), steroid + drainage (1/14)

45.5 (22–98 months)

GLM

4

[55]

40

Shojaee L

2021

Iran

87

Non-Randomized

34

Oral steroid (9/23), Excision (7/17), steroid + drainage (9/47)

26 (8–48 months)

IGM

3

[56]

41

Skandarajah, A

2015

Australia

11

Non-Randomized

40

Oral steroid (1/3), Antibiotic + surgery (3/5)

6 (3 months–15 years)

IGM

8

[57]

42

Tan Q. T

2019

Singapore

113

Non-Randomized

36.2(25–63)

Oral steroid (16/73), Antibiotic (19/79), MTX (1/1), Observation (0/5), Surgical procedures (6/24)

252 days

GM

5

[4]

43

Tekgoz E

2020

Turkey

53

Non-Randomized

37.2 ± 6.6

Oral steroid (0/3), Oral steroid + MTX (1/41), Azathioprine + steroid (0/3), Observation (0/1), Excision (3/3), MTX + surgery (0/2)

13.83 (1.61–100.83 months)

IGM

6

[2]

44

Toktas O

2021

Turkey

78

Non-Randomized

36.7 ± 1.4

Oral steroid (15/32), Intralesional injection of steroid + topical steroid (4/46)

23.2 ± 9.1

IGM

4

[6]

45

Velidedeoglu M

2016

Turkey

10

Non-Randomized

38.4 ± 8.3(29–52)

Antibiotic (0/1), Drainage + antibiotic (1/5), Drainage + antibiotic + steroid (0/4)

21 (11–26 months)

IGM

8

[58]

46

Wang J

2021

China

200

Non-Randomized

38

Oral steroid (24/104), Surgical procedures (8/156)

15.64 (12–36months)

IGM

3

[59]

47

Yabanoglu H

2015

Turkey

77

Non-Randomized

Surgery:36 (28–68) Conservative:37 (28–59)

Oral steroid (9/44), Excision (0/31), Mastectomy (0/2)

16.57 ± 18.57

IGM

4

[60]

48

Yau F. M

2010

Canada

11

Non-Randomized

37.4 (23–49)

Antibiotic + surgery (8/11)

18.6 months

GM

6

[61]

49

Zhang X

2020

China

53

Non-Randomized

34.6 ± 5.9

Excision (4/25), Surgery + traditional chinese medicine (Yanghe decoction) (0/28)

13.2 ± 10.0 months

IGM

5

[14]

50

Zhang X

2020

China

68

Non-Randomized

35 (22–55)

Excision (3/68)

24 months

IGM

6

[62]

51

Ahmed, Y. S

2016

Egypt

13

Non-Randomized

35.53 ± 7.25 (27–51)

Excision (2/13)

IGM

7

[63]

52

Akin M

2017

Turkey

11

Non-Randomized

35.5 (29–45)

Antibiotic + steroid (0/11)

60 (16–110 months)

IGM

7

[64]

53

Atak T

2015

Turkey

50

Non-Randomized

39.07 ± 11.5

Oral steroid (1/6), Antibiotic + anti inflammatory agent (1/11), Drainage (12/16), Excision (1/7)

24.85 ± 19.7 months

IGM

5

[65]

54

Basim P

2021

Turkey

122

Non-Randomized

34.1 (29–47)

Oral steroid (8/28), Excision (6/19), Steroid + surgery (5/75)

32.5 (19–67 months)

IGM

3

[16]

55

Cetin K

2019

Turkey

124

Randomized

33.9 ± 6.8 (20–58)

Oral steroid (6/42), Topical steroid (5/42), Topical + oral steroid (6/40)

94 ± 28 (55–191 weeks)

GM

3

[66]

56

Emre A

2018

Turkey

32

Non-Randomized

40.3 ± 10.7(26–70)

Oral steroid (1/3), Antibiotic (2/10), Antibiotic + steroid (1/9), Anti TB + antibiotic (0/2), Anti TB (0/1), Antibiotic + chemotherapy (0/1), Observation (1/6)

687 ± 618 (5–1800 days)

IGM

7

[67]

57

Galea M. H

1989

England

6

Non-Randomized

34

Excision (2/6)

GLM

8

[68]

58

McLean, N. R

2019

United Kingdom

4

Non-Randomized

47.5 (26–62)

Antibiotic + surgery (0/1), Steroid + antibiotic + mastectomy (0/3)

30 months

IGM

8

[69]

59

Oak J

2021

India

40

Non-Randomized

33

Oral steroid + MTX (2/40)

12 months

IGM

5

[70]

60

Oran E. S

2013

Turkey

46

Non-Randomized

33 (28–55)

Oral steroid (5/25), Excision (3/18), Steroid + surgery (0/3)

35.4 (3–135 months)

IGM

4

[71]

61

Pandey T. S

2021

USA

49

Non-Randomized

35 (24–67)

Oral steroid (10/44), Observation (0/3), Excision (0/2)

6–12 months

IGM

5

[72]

62

Postolova A

2020

USA

19

Non-Randomized

33.5

Antibiotic (3/19)

36 (12–84 months)

IGM

5

[73]

63

Sheybani F

2015

Iran

22

Non-Randomized

32.82 ± 6.26 (23–47)

Oral steroid (3/15), MTX (0/1), Oral steroid + MTX (0/6)

11.91 ± 4.4 (6–22)

IGM

5

[7]

64

Avci M. E

2015

Turkey

9

Non-Randomized

21–39

Oral steroid (8/9)

IGM

8

[74]

65

Seo H. R. N

2012

Korea

IGM:58 TM:10

Non-Randomized

IGM:33.5 TM:40

Antibiotic + steroid (5/21), Antituberculosis (1/10), Excision (0/48)

IGM:11.71 TM:21

IGM & TM

7

[75]

  1. GM granulomatous mastitis, IGM idiopathic granulomatous mastitis, CGM chronic granulomatous mastitis, GLM granulomatous lobular mastitis, TM tuberculous mastitis, MTX methotrexate, NSAID nonsteroidal anti-inflammatory drug