Table 2 Outer and inner macular thickness (µm) in four quadrants of right eye (OD) of controlled diabetic patients with and without retinopathy, compared to healthy control subjects.

From: Controlled diabetes amends oxidative stress as mechanism related to severity of diabetic retinopathy

Parameter

Group

N

Min

Max

Mean ± SD

% Change

P valuea

P valueb

I

Out

Group I

15

231.00

294.00

264.67 ± 14.39

100.00

 

0.085

Group II

12

222.00

297.00

262.25 ± 22.99

99.09

0.976

Group III

11

244.00

445.00

291.27 ± 55.73

110.05

0.100

In

Group I

15

286.00

322.00

299.80 ± 9.76

100.00

 

0.083

Group II

12

233.00

332.00

278.42 ± 27.94

92.87

0.221

Group III

11

261.00

469.00

311.73 ± 57.87

103.98

0.614

S

Out

Group I

15

235.00

284.00

268.00 ± 12.96

100.00

 

0.274

Group II

12

232.00

296.00

258.42 ± 17.48

96.42

0.316

Group III

11

236.00

308.00

269.82 ± 24.54

100.68

0.957

In

Group I

15

257.00

321.00

302.80 ± 14.96

100.00

 

0.209

Group II

12

250.00

342.00

287.92 ± 23.99

95.08

0.219

Group III

11

230.00

332.00

288.36 ± 33.83

95.23

0.253

N

Out

Group I

15

252.00

301.00

280.27 ± 13.83

100.00

 

0.157

Group II

12

200.00

308.00

268.92 ± 27.28

95.95

0.264

Group III

11

261.00

323.00

284.73 ± 17.85

101.59

0.805

In

Group I

15

291.00

319.00

305.93 ± 9.60

100.00

 

0.241

Group II

12

248.00

340.00

292.75 ± 23.98

95.69

0.183

Group III

11

264.00

345.00

297.18 ± 26.16

97.14

0.464

T

Out

Control

15

242.00

272.00

260.87 ± 9.13

100.00

 

0.031

Group I

12

218.00

289.00

248.75 ± 18.18

95.36

0.405

Group II

11

245.00

390.00

279.27 ± 44.37

107.06

0.158

In

Group I

15

273.00

387.00

295.60 ± 27.01

100.00

 

0.129

Group II

12

225.00

319.00

272.08 ± 26.74

92.04

0.211

Group III

11

247.00

465.00

303.45 ± 57.19

102.66

0.830

C

Group I

15

190.00

273.00

229.67 ± 20.32

100.00

 

0.395

Group II

12

175.00

308.00

233.75 ± 38.49

101.78

0.955

Group III

11

149.00

364.00

251.55 ± 61.39

109.53

0.324

  1. Comparisons done using one-way ANOVA test between all groups with multiple comparisons (Dunnett test) to compare each group with the control group in all parameters.
  2. aP value between each group and the control group.
  3. bP value between all groups.