What risk factors for OSA are discovered in the paper with 100% OSA frequency?  
SELECT ?risk_factors, ?risk_factors_labels
WHERE {
  orkgr:R110932 orkgp:compareContribution ?contrib.
  ?contrib orkgp:P37530 ?osa_frequency.
  ?osa_frequency rdfs:label ?osa_frequency_values.
  ?contrib orkgp:P37528 ?risk_factors.
  ?risk_factors rdfs:label ?risk_factors_labels.
  FILTER(REGEX(?osa_frequency_values, "100"^^xsd:string))
}