Standardized laboratory protocols are missing, resulting in high intra- and inter-lab variation.
Of the 154 recruited, 37 participants were excluded due to missing data, either the clinical chart review (N = 21), the MINI (N = 13) or both (N = 3) were missing, resulting in 117 participants included in the final analysis (Figure 1).
Reactants or products can be missing, resulting in unbalanced reactions and there is often no information on the atom atom mapping (AAM) of the reactant atoms to the product atoms.
The linkage was 99% complete (250 missing), resulting in a cohort of 16864 mothers (272 mothers had two cryptorchid sons and 5 mothers had 3 cryptorchid sons).
The BAI and the FQ had one participant missing, resulting in 1089 included participants.
Furthermore, 29 hospital records were missing resulting in exclusion of these women.
In four patients, data on diseased vessels were missing, resulting in a final sample of 1545 patients (23.2% women).
From match days, four medical reports were missing, resulting in a response rate of 96.9% or 2046 player hours.
Subscales with higher amounts of missing values were considered missing resulting in a varying amount of participants included in the analyses.
At 6 months follow-up, 132 participants (14.8%) had died and in 44 participants (4.9%) the CDS scores were missing, resulting in 714 participants (80.2%) at 6 months.
