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. Author manuscript; available in PMC: 2018 Jun 22.
Published in final edited form as: Vaccine. 2017 May 27;35(29):3621–3638. doi: 10.1016/j.vaccine.2017.05.052

D2.

Most central nodes and centrality measures for the negative sentiment network.

Negative vaccine sentiment network
Degree centrality Betweenness centrality Closeness centrality Eigenvector centrality
Mean = 0.0027 Mean = 0.0033 Mean = 0.2161 Mean = 0.0318
Std Dev = 0.0058 Std Dev = 0.0148 Std Dev = 0.0365 Std Dev = 0.06
vaccines 0.1054 vaccines 0.3280 vaccines 0.3582 vaccines 1
children 0.0623 children 0.1889 children 0.3375 children 0.6188
thimerosal 0.0588 CDC 0.1274 vaccine industry 0.3275 thimerosal 0.5248
CDC 0.0527 vaccine industry 0.1213 autism 0.3249 CDC 0.5054
vaccine industry 0.0518 autism 0.1028 mercury 0.3245 vaccine industry 0.4898
autism 0.0386 thimerosal 0.0869 thimerosal 0.3209 mercury 0.4440
doctors 0.0351 doctors 0.0863 CDC 0.3197 autism 0.3894
mainstream media 0.0351 mercury 0.0629 SB 277 0.3072 flu shots 0.3367
mercury 0.0334 mainstream media 0.0624 mainstream media 0.3070 mainstream media 0.3342
flu shots 0.0263 mandatory vaccines 0.0583 flu shots 0.3037 doctors 0.2862
pharmaceutical companies 0.0263 flu shots 0.0576 doctors 0.3028 SB 277 0.2659
mandatory vaccines 0.0255 pharmaceutical companies 0.0552 vaccine ingredients 0.2990 vaccine ingredients 0.2632
vaccination 0.0237 informed consent 0.0485 mandatory vaccines 0.2969 mandatory vaccines 0.2457
SB 277 0.0228 people 0.0474 toxic chemical ingredients 0.2958 pharmaceutical companies 0.2400
United States 0.0202 vaccine ingredients 0.0453 vaccine-autism link 0.2952 vaccine-autism link 0.2041
measles 0.0193 United States 0.0449 vaccine safety 0.2933 toxic chemical ingredients 0.1999
vaccine ingredients 0.0184 measles 0.0444 intelligent questions 0.2905 aluminum 0.1889
informed consent 0.0184 vaccination 0.0438 vaccines are safe 0.2895 vaccination 0.1853
people 0.0184 vaccine safety 0.0399 monosodium glutamate 0.1811
pandemic H1N1 swine flu vaccine 0.0184 adverse effects 0.0354 hepatitis B vaccine 0.1793
Merck 0.0184 vaccine-injured children 0.1763
measles mortality 0.0184 vaccine safety 0.1721
evidence 0.1655
informed consent 0.1643
intelligent questions 0.1612
formaldehyde 0.1609
pregnant women 0.1598
pandemic H1N1 swine flu vaccine 0.1595
Big Pharma 0.1591
vaccines are safe 0.1565
quackery 0.1552
vaccine damage 0.1547
SV40 0.1545
science 0.1531