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Table 2 Comparisons of breast milk immune factor concentration with or without sub-clinical mastitis, by HIV group

From: The immune response to sub-clinical mastitis is impaired in HIV-infected women

Immune factor concentration

HIV+ samples

Corrected p-value*

HIV− samples

Corrected p-value*

No SCM

Median [q25–q75]

SCM

Median [q25–q75]

No SCM

Median [q25–q75]

SCM

Median [q25–q75]

Th 1

 IL-2R

65 [20–105]

82 [66–109]

0.251

66 [20–101]

166 [66–536]

0.008

 IL-12p40/70

63 [38–91]

110 [57–126]

0.030

83 [31–126]

212 [100–333]

0.003

 IL-15

47 [32–66]

77 [49–126]

0.102

30 [13–71]

100 [27–262]

0.021

 MIG

215 [62–668]

442 [207–1077]

0.102

79 [10–153]

1185 [314–1328]

0.001

 IP-10

932 [320–1976]

1913 [557–2653]

0.102

337 [165–519]

1806 [502–3379]

0.001

IL-7

27 [13–58]

62 [26–109]

0.088

35 [13–177]

179 [13–279]

0.131

Anti infl.

 EPO

23 [10–31]

17 [13–33]

0.970

31 [16–40]

25 [18–33]

0.920

 Lactoferrin

3.8 [2.8–6.6]

4.5 [2.8–13.8]

0.598

4.8 [2.2–8.7]

18.8 [2.8–20.2]

0.136

 IL-1RA

326 [131–731]

430 [232–1203]

0.183

531 [255–905]

1718 [470–3980]

0.012

Anti bact. response

 MIP-1α

23 [8–34]

34 [24–137]

0.030

20 [8–45]

145 [20–808]

0.007

 MIP-1β

17 [5–31]

32 [11–141]

0.102

16 [5–34]

163 [24–801]

0.003

 MCP-1

400 [228–1281]

690 [338–1713]

0.224

524 [240–1221]

6460 [1994–7200]

0.003

 LBP

63 [43–138]

248 [97–394]

0.036

84 [54–164]

357 [85–550]

0.064

 sCD14

4828 [2479–10,231]

6573 [2560–9186]

0.845

9059 [5941–18,212]

27,778 [10,650–57,686]

0.064

 SLPI

20 [13–60]

40 [32–82]

0.206

35 [14–54]

102 [55–562]

0.011

Infl. markers

 RANTES

72 [45–122]

151 [88–268]

0.030

87 [51–147]

238 [110–304]

0.006

 CRP

0.20 [0.10–0.7]

0.20 [0.10–0.70]

0.591

0.10 [0.10–0.10]

0.10 [0.10–0.20]

0.203

 B2M

8.5 [7.6–11.0]

10.1 [8.8–13.0]

0.088

8.1 [7.2–9.3]

13.6 [10.3–26.8]

0.001

 PS100A9

2875 [1405–17,183]

18,403 [4166–23,934]

0.088

3480 [2235–9930]

23,129 [8035–25,854]

0.021

 IL-8

365 [233–1188]

1275 [503–2803]

0.030

460 [240–844]

3243 [414–10,160]

0.007

  1. Sub-clinical mastitis is defined as a Na/K ratio > 1 in breast milk
  2. [q25–q75] interquartile range
  3. : pro inflammatory marker; Infl. markers: inflammatory markers; Anti infl.: anti inflammatory markers; anti bact. response: anti bacterial response
  4. All concentrations are in pg/mL except SLPI, B2M, CRP (μg/L), lactoferrin (g/L), EPO (mIU/mL), LBP, sCD14 (ng/mL)
  5. * p-values are for the test of the difference between samples with and without SCM, separately for each HIV group; Italic values indicate significance of p-value (<0.05) after FDR correction