an increasing trendP < 0.01
There was an increasing trend for nighttime discharges during the study period of 10.9 % per period (95 % CI, 7.8–14.0 %; P < 0.01) (Table 1 ).
There was an increasing trend for nighttime discharges during the study period of 10.9 % per period (95 % CI, 7.8–14.0 %; P < 0.01) (Table 1 ).