The assessment of cancer survival at the population level is essential for monitoring progress in cancer control. We aimed to assess cancer survival and its trends in adults in Spain. Individual records of 601,250 adults with primary cancer diagnosed during 2002–2013 and followed up to 2015 were included from 13 population-based cancer registries. We estimated net survival up to five years after diagnosis and analyzed absolute changes between 2002–2007 and 2008–2013. Estimates were age-standardized. Analyses were performed for 29 cancer groups, by age and sex. Overall, age-standardized five-year net survival was higher in women (61.7%, 95% CI 61.4–62.1%) than in men (55.3%, 95% CI 55.0–55.6%), and ranged by cancer from 7.2% (pancreas) to 89.6% (prostate) in men, and from 10.0% (pancreas) to 93.1% (thyroid) in women in the last period. Survival declined with age, showing different patterns by cancer. Between both periods, age-standardized five-year net survival increased overall by 3.3% (95% CI 3.0–3.7%) in men and 2.5% (95% CI 2.0–3.0%) in women, and for most cancer groups. Improvements were greater in patients younger than 75 years than in older patients. Chronic myeloid leukemia and myeloma showed the largest increases. Among the most common malignancies, the greatest absolute increases in survival were observed for colon (5.0%, 95% CI 4.0–6.0%) and rectal cancers (4.5%, 95% CI 3.2–5.9%). Survival improved even for some cancers with poor prognosis (pancreas, esophagus, lung, liver, and brain cancer). Further investigation of possible sociodemographic inequalities is warranted. This study contributes to the evaluation of cancer control and health services’ effectiveness.

Socioeconomic inequalities in cancer incidence are not well documented in southern Europe. We aim to study the association between socioeconomic status (SES) and colorectal, lung, and breast cancer incidence in Spain. We conducted a multilevel study using data from Spanish population-based cancer registries, including incident cases diagnosed for the period 2010–2013 in nine Spanish provinces. We used Poisson mixed-effects models, including the census tract as a random intercept, to derive cancer incidence rate ratios by SES, adjusted for age and calendar year. Male adults with the lowest SES, compared to those with the highest SES, showed weak evidence of being at increased risk of lung cancer (risk ratio (RR): 1.18, 95% CI: 0.94–1.46) but showed moderate evidence of being at reduced risk of colorectal cancer (RR: 0.84, 95% CI: 0.74–0.97). Female adults with the lowest SES, compared to those with the highest SES, showed strong evidence of lower breast cancer incidence with 24% decreased risk (RR: 0.76, 95% CI: 0.68–0.85). Among females, we did not find evidence of an association between SES and lung or colorectal cancer. The associations found between SES and cancer incidence in Spain are consistent with those obtained in other European countries.

Background: Central nervous system (CNS) neoplasms are highly frequent solid tumours in children and adolescents. While some studies have shown a rise in their incidence in Europe, others have not. Survival remains limited. We addressed two questions about these tumours in Spain: (1) Is incidence increasing? and (2) Has survival improved? Methods: This population-based study included 1635 children and 328 adolescents from 11 population-based cancer registries with International Classification of Childhood Cancer Group III tumours, incident in 1983–2007. Age-specific and age-standardised (world population) incidence rates (ASRws) were calculated. Incidence time trends were characterised using annual percent change (APC) obtained with Joinpoint. Cases from 1991 to 2005 (1171) were included in Kaplan–Meier survival analyses, and the results were evaluated with log-rank and log-rank for trend tests. Children’s survival was age-standardised using: (1) the age distribution of cases and the corresponding trends assessed with Joinpoint; and (2) European weights for comparison with Europe. Results: ASRw 1983–2007: children: 32.7 cases/10⁶; adolescents: 23.5 cases/10⁶. The overall incidence of all tumours increased across 1983–2007 in children and adolescents. Considering change points, the APCs were: (1) children: 1983–1993, 4.3%^ (1.1; 7.7); 1993–2007, −0.2% (−1.9; 1.6); (2) adolescents: 1983–2004: 2.9%^ (0.9; 4.9); 2004–2007: −7.7% (−40; 41.9). For malignant tumours, the trends were not significant. 5-year survival was 65% (1991–2005), with no significant trends (except for non-malignant tumours). Conclusions: CNS tumour incidence in Spain was found to be similar to that in Europe. Rises in incidence may be mostly attributable to changes in the registration of non-malignant tumours. The overall malignant CNS tumour trend was compatible with reports for Southern Europe. Survival was lower than in Europe, without improvement over time. We provide a baseline for assessing current paediatric oncology achievements and incidence in respect of childhood and adolescent CNS tumours.

Purpose: The association between the use of mobile phones use and the risk of brain cancer remains controversial. The aim of this study is to describe trends in the incidence of central nervous system (CNS) cancers in Spain and its possible relationship with mobile phone use. Methods: Trends and trend changes from 1985 to 2015 in adjusted incidence rates of CNS cancers by sex, age (adults and children), site, and histological type were assessed using data from 14 general and paediatric cancer registries. Results: The study included 20,325 CNS malignancies in adults and 2,372 in children. For adults, the overall rate of malignant brain tumours showed a slight increase of 0.2% (95% CI: 0.1 - 0.4) per year. This increase was concentrated in the early years up to 1996 (1.7% per year, 95% CI: 0.9 - 2.6) followed by 20 years of a non-significant slight decline of -0.1% (95% CI: -0.4 - 0.1) per year until 2015. In children, an increase of 7.6% (95% CI: 2.4 – 13.1) per year until 1991 followed by a decrease of -1.0% (95%CI: -1.7 - -0.3) per year until 2015 was observed. This increase in the incidence in 1980s and early 1990s could be explained by diagnostic improvements especially in imaging techniques implemented during these years. Conclusion: The present findings do not support a possible relationship between the use of mobile phones and the incidence of malignant brain tumours. However, the possibility of the presence of a weak correlation or that a longer latency period would be needed to observe a possible ecological correlation cannot be discarded.