Table 2.

Corrected QT interval according to the severity of retinopathy and nephropathy

Microvascular complications	n	QTc (ms)	P‐value
Retinopathy
None	169	427 ± 21	―
Simple retinopathy	19	432 ± 22	0.78†
Preproliferative retinopathy	14	441 ± 17	0.078†
Proliferative retinopathy	17	443 ± 23	0.010†
Trend			<0.001‡
Nephropathy
Normoalbuminuria	133	425 ± 19	–
Microalbuminuria	60	435 ± 23	0.010§
Macroalbuminuria	26	442 ± 24	0.0005§
Trend			<0.001‡

Corrected QT interval (QTc) values are expressed as mean ± standard deviation. ^† P‐values for Dunnett's test vs none. ^‡ P‐values for the Jonckheere–Terpstra test. ^§ P‐values for Dunnett's test vs normoalbuminuria.