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Table 2 Sociodemographic characteristics and WLAN use of the participants in the two experimental groups

From: Does precautionary information about electromagnetic fields trigger nocebo responses? An experimental risk communication study

  Experimental condition Test statistic for differences
between groups
Basic information
(n = 64)
Basic + precautionary information (n = 73)
Number of females (%) 27 (42%) 35 (48%) χ2 = .46 (p = .50)
Number of participants in age group (%)
 18–30 43 (67%) 51 (70%) Mann-Whitney U-Test
 31–40 5 (8%) 3 (4%) Z = −.23 (p = 0.82)
 41–50 3 (5%) 4 (6%)  
 51–60 6 (9%) 7 (10%)  
 older than 60 7 (11%) 8 (11%)  
Number of participants with education level (%)
 No graduation 0 (0%) 0 (0%) Mann-Whitney U-Test
 Junior high school 7 (11%) 7 (10%) Z = −.343 (p = .73)
 High school 26 (41%) 32 (44%)  
 Bachelor degree 15 (23%) 19 (26%)  
 Master degree (or equivalent) 16 (25%) 15 (21%)  
Use of WLAN at home 57 (89%) 66 (90%) χ2 = .07 (p = .80)
Use of WLAN at work/university 49 (77%) 55 (75%) χ2 = .22 (p = .90)