. 2016 Jun 29;116(3):1152–1160. doi: 10.1152/jn.00353.2016

Table 1.

Summary of SD parameters

Comparison Group	%	Latency, min	# of Events	Duration, min	Delta [K⁺]_o, mM
CS young	44	Mdn = 40.0	Mdn = 0.0	Mdn = 0.0	Mdn = 15.04
		IQR = 8.89, 40.0	IQR = 0.0, 1.50	IQR = 0.0, 2.89	IQR = 11.39, 34.05
CS old	88	Mdn = 7.46	Mdn = 3.0	Mdn = 5.42	Mdn = 40.92
		IQR = 2.57, 31.50	IQR = 1.25, 4.75^*	IQR = 3.19, 7.96^*	IQR = 12.71, 144.39
CS	67	Mdn = 13.98	Mdn = 1.0	Mdn = 1.65	Mdn = 29.28
		IQR = 7.46, 40.0	IQR = 0.0, 4.0	IQR = 0.0, 11.22	IQR = 14.28, 46.45
w1118	100	Mdn = 3.23	Mdn = 6.50	Mdn = 16.66	Mdn = 37.86
		IQR = 0.70, 10.84^*	IQR = 3.75, 9.0^*	IQR = 8.25, 27.52^*	IQR = 24.31, 65.41
for^R	100	Mdn = 5.67	Mdn = 4.50	Mdn = 12.96	Mdn = 45.72
		IQR = 2.67, 9.30	IQR = 3.0, 7.0	IQR = 7.22, 20.65	IQR = 28.23, 109.63
for^s2	74	Mdn = 17.89	Mdn = 4.0	Mdn = 5.74	Mdn = 24.04
		IQR = 7.46, 32.90^*	IQR = 1.0, 7.0	IQR = 1.06, 10.26^*	IQR = 18.63, 27.77^*

Quantification of SD parameters for all flies tested. Three experimental comparisons were made: 1) young Canton S (CS; 4–5 days old) compared with old CS flies (35–40 days old); 2) CS flies compared with w1118 mutants; 3) for^R (high PKG activity) compared with for^s2 (low levels of PKG activity) flies. Percent (%), percent of preparations that exhibited SD in each group. Latency was measured from the time point of ouabain application to the inflection point of the first ouabain-induced event. Duration of SD activity was measured from the inflection point of the first SD event to the time of recovery following the last SD event. Delta [K⁺]_o, overall change in [K⁺]_o, calculated by measuring the [K⁺]_o at the end of the 40-min treatment period and comparing it with initial levels before ouabain injections.

Significant differences between the corresponding flies within the comparison group. Details of the statistical tests performed and individual P values are reported in results.