... The relationship between knowledge, confidence and attitudes It was common across studies to consider the influence of HCPs' knowledge of and confidence in caring for people at risk of suicide on their attitudes towards suicide. Twenty papers used cross- sectional methods (Table 1) to assess this relationship and reported consistently that increasing levels of knowledge led to more positive attitudes about suicide ( Bajaj et al., 2008;Betz et al., 2013;Carmona-Navarro & Pichardo-Martinez, 2012;Chan, Batterham, Christensen, & Galletly, 2014;Egan, Sarma, & O'Neill, 2012;Eynan et al., 2015;Gale et al., 2016;Graham, Rudd, & Bryan, 2011;Grimholt, Haavet, Jacobsen, Sandvik, & Ekeberg, 2014;Hoifodt et al., 2007;Jiao et al., 2014;Keogh, Doyle, & Morrissey, 2007;Kishi, Kurosawa, Morimura, Hatta, & Thurber, 2011;Kodaka, Inagaki, Postuvan, & Yamada, 2013;Neville & Roan, 2013;Obando Medina et al., 2014;Smith, Silva, Covington, & Joiner, 2014;Srivastava & Tiwari, 2012;Sun, Long, & Boore, 2007). Based on testing of varied education levels, Sun et al. (2007) found that higher levels of education among nurses were correlated with higher positive scores on a scale measuring attitudes towards suicidal behavior. ...