Home loans arrears increased, albeit slightly, during April, compared with March, continuing a trend that's emerged since the summer.Data on loan arrears in securitised loan pools monitored by Standard & Poor's shows that loans 30 days or more overdue increased by two basis points in April, to 1.83 per cent.The rise in arrears over the first four months of 2011 is clearest in loan pools originated by non-bank originators and building societies, and credit unions. Home loans arrears have improved in securitised loan pools managed by the major banks, after peaking in January.The securitised loan pools monitored by S&P account for around $80 billion worth of mortgages and constitute about seven per cent of all home loans.Arrears of 30 days or more on sub-prime securitised loans increased to 12.05 per cent in April, from 11.22 per cent in March, up from a recent low in December of 10.2 per cent. Adverse selection trends may, however, be overtaking this data, given the decline in the pool of loans (now less than $2 billion) and the negligible level of new issues in the last three years.